9 Best Emission Smog Pumps for 2026

You’ll want reliable, direct‑fit secondary air pumps that match your OEM number and inlet/outlet type to restore cold‑start emissions quickly. Top choices include Mercedes JDMSPEED/GELUOXI/NewYall units, VW/Audi/Skoda replacements, the quieter Mercedes/Chrysler OE‑equivalent, A‑Premium for GM trucks, and the APDTY complete kit — many are 100% tested and warranty‑backed. Verify connectors, mounting points and warranties to avoid fitment headaches, and keep going to see fitment tips, install time and warranty details.

Our Top Emission Smog Pump Picks

JDMSPEED Secondary Air Injection Pump for Mercedes Benz JDMSPEED New Secondary Air Injection Smog Air Pump 0580000025 0001405185 Best Fitment for MercedesFunction: Secondary air injection (smog) pumpVehicle Fitment: Mercedes-Benz models (C, CL, CLK, CLS, E, GL, ML, R, S, SL, SLK) specific years/enginesOEM/Reference Part Numbers: 0580000025, 0580000026, 0001405185, 0001404685, A0001404685, A0001405185, 704389020VIEW LATEST PRICERead Our Analysis
Secondary Air Injection Pump for VW Audi Skoda Emission Smog Pump Secondary Auxiliary Air Injection Pump for A3 Best for VW/Audi PlatformsFunction: Secondary/auxiliary air injection (smog) pumpVehicle Fitment: Audi, Volkswagen, Skoda (A3/A4/A6/A8/Q7/TT; Golf/Jetta/Passat/Touareg/Beetle) – verify fitOEM/Reference Part Numbers: 06A959253A, 06A959253B, 06A959253E, 078906601A, 078906601EVIEW LATEST PRICERead Our Analysis
Secondary Air Injection Pump for Mercedes C/E/ML/SLK Secondary Air Injection Smog Air Pump Replacement for Mercedes C300 Reliable OEM ReplacementFunction: Secondary air injection (smog) pumpVehicle Fitment: Mercedes-Benz models (C, CL, CLK, CLS, GL, ML, R, SL, SLK) specific years/enginesOEM/Reference Part Numbers: 0001405185, 0001404685, A0001405185, A0001404685, 704389020, 0580000025VIEW LATEST PRICERead Our Analysis
NewYall Smog Air Injection Pump for Mercedes Vehicles NewYall Secondary Smog Air Injection Pump for Mercedes C240 C320 Classic Mercedes CoverageFunction: Secondary air injection (smog) pumpVehicle Fitment: Mercedes-Benz (C, CLK, E, S, CL, G, R, SL, SLK, ML, CLS) older-model rangesOEM/Reference Part Numbers: (Various Mercedes-era OEM cross-references implied; model-specific OE compatibility noted)VIEW LATEST PRICERead Our Analysis
Secondary Air Injection Pump for Mercedes W203/W463/R230 Secondary Air Injection Pump Smog Pump A0001405785 99660510400 0001404385 0001404285 Wide-Mercedes CompatibilityFunction: Secondary air injection (smog) pumpVehicle Fitment: Mercedes W203/W463/R230 series (including C55 AMG)OEM/Reference Part Numbers: A0001405785, 0001404385, 0001404285, 0001405785, 0580000018, 0580000017VIEW LATEST PRICERead Our Analysis
JDMSPEED Secondary Air Pump Replacement for Audi & VW JDMSPEED New Secondary Air Pump Smog Air Pump 06A959253B Replacement Budget VW/Audi ReplacementFunction: Secondary air injection (smog) pumpVehicle Fitment: Audi and VW models (A4/A6/A8/Q7, Jetta) – verify fitOEM/Reference Part Numbers: 06A959253B, 06A959253A, 06A959253EVIEW LATEST PRICERead Our Analysis
A-Premium Secondary Air Injection Smog Pump for GM Vehicles A-Premium Secondary Air Injection Smog Pump Compatible with Chevrolet Silverado Best for GM TrucksFunction: Secondary air injection (smog) pumpVehicle Fitment: GM trucks/vans/SUVs (Chevrolet, GMC, Oldsmobile) specific years/enginesOEM/Reference Part Numbers: 323503M, AIP1, SKAP913049VIEW LATEST PRICERead Our Analysis
APDTY Secondary Air Injection Smog Pump Kit APDTY 19515548 Secondary Air Injection Smog Emissions Pump Complete Upgrade Complete Upgrade KitFunction: Secondary air injection (smog) pump (complete kit)Vehicle Fitment: Cadillac and Oldsmobile (DeVille, Seville, Aurora) 2000–2004 / 2001–2003OEM/Reference Part Numbers: 19303240, 19515548, 215-617, 215-480, 19260940, 19515549VIEW LATEST PRICERead Our Analysis
Secondary Air Injection Smog Pump for Mercedes & Chrysler YZHIDIANF Upgraded Secondary Air Injection Pump Smog Pump fit for:-Mercedes Best Multi-Brand FitFunction: Secondary air injection (smog) pumpVehicle Fitment: Mercedes-Benz (C, CL, CLK, CLS, E, G, ML, S) and Chrysler Crossfire — specific years/enginesOEM/Reference Part Numbers: 05098830AA and many equivalents (0001403785, A0001403785, 0580000010/0011, 704389000, etc.)VIEW LATEST PRICERead Our Analysis

More Details on Our Top Picks

  1. JDMSPEED Secondary Air Injection Pump for Mercedes Benz

    JDMSPEED New Secondary Air Injection Smog Air Pump 0580000025 0001405185

    Best Fitment for Mercedes

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    Should you own a compatible Mercedes‑Benz and need a direct, reliable replacement, the JDMSPEED New Secondary Air Injection Smog Pump delivers stable performance and long service life while fitting the listed part numbers (0580000025/26, A0001404685/A0001405185) for models like the C‑class, E‑class, ML/GL, and SLK; it’s built to strict quality standards and installs easily as a plug‑and‑play swap. You’ll get one smog pump compatible with numerous Mercedes models (C230/C280/C300/C350, E350/E550, ML/GL/R/SLK/SL, CL/CLK/CLS variants). It supports emission control, restores proper secondary air injection, and reduces fault codes with straightforward installation.

    • Function:Secondary air injection (smog) pump
    • Vehicle Fitment:Mercedes-Benz models (C, CL, CLK, CLS, E, GL, ML, R, S, SL, SLK) specific years/engines
    • OEM/Reference Part Numbers:0580000025, 0580000026, 0001405185, 0001404685, A0001404685, A0001405185, 704389020
    • Replacement / Direct-Fit:Direct replacement for listed part numbers/vehicles
    • Quality / Testing Claims:Built to strict quality-control standards; stable performance; long service life
    • Warranty / Return Support:Implied quality/long service life (manufacturer specifics not listed)
    • Additional Feature:Broad Mercedes coverage
    • Additional Feature:Aluminum construction implied
    • Additional Feature:Direct replacement package
  2. Secondary Air Injection Pump for VW Audi Skoda

    Emission Smog Pump Secondary Auxiliary Air Injection Pump for A3

    Best for VW/Audi Platforms

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    In case you drive a VW, Audi, Skoda, or Seat that needs a reliable secondary air injection pump, this Emission Smog Pump is a top pick for 2026 because it directly replaces common OEM part numbers (06A959253A/B/E, 078906601A/E) and fits many popular models—saving you time verifying compatibility. You’ll get a precision-crafted air pump that meets or exceeds OEM standards, arrives 100% tested, and installs as a direct replacement for proper fit. Compatible with Audi A3/A4/A6/A8/Q7/TT, VW Golf/Jetta/Passat/Touareg/Beetle, and select Seat/Skoda models. Sold on YunStal, it includes a 12-month warranty.

    • Function:Secondary/auxiliary air injection (smog) pump
    • Vehicle Fitment:Audi, Volkswagen, Skoda (A3/A4/A6/A8/Q7/TT; Golf/Jetta/Passat/Touareg/Beetle) – verify fit
    • OEM/Reference Part Numbers:06A959253A, 06A959253B, 06A959253E, 078906601A, 078906601E
    • Replacement / Direct-Fit:Direct replacement for the listed OEM numbers
    • Quality / Testing Claims:Constructed from premium materials; precision-processed; 100% tested prior to shipping
    • Warranty / Return Support:12-month warranty (seller YunStal)
    • Additional Feature:12-month warranty
    • Additional Feature:100% tested pre-shipping
    • Additional Feature:Premium materials construction
  3. Secondary Air Injection Pump for Mercedes C/E/ML/SLK

    Secondary Air Injection Smog Air Pump Replacement for Mercedes C300

    Reliable OEM Replacement

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    Should you own a Mercedes C, E, ML, SLK (2005–2012 gas DOHC models) and want a direct replacement that’s vehicle-specific and reliably reduces hydrocarbons, this Secondary Air Injection Smog Air Pump is a strong choice. You’ll get a GELUOXI aluminum-bodied, mechanical pump (0580000025) matching OEM numbers 0001405185/0001404685 and others. It fits many C/CL/CLK/CLS/GL/ML/R/SL/SLK models, mounts rear, and uses a 0.31″ flare outlet with hose-barb inlet. It pushes clean air into the exhaust to lower HC emissions. Professionals should install it; the unit’s tested, backed up with manufacturer warranty, and has a 30-day return option.

    • Function:Secondary air injection (smog) pump
    • Vehicle Fitment:Mercedes-Benz models (C, CL, CLK, CLS, GL, ML, R, SL, SLK) specific years/engines
    • OEM/Reference Part Numbers:0001405185, 0001404685, A0001405185, A0001404685, 704389020, 0580000025
    • Replacement / Direct-Fit:Vehicle-specific direct replacement (fit type: vehicle specific)
    • Quality / Testing Claims:Tested quality for performance; manufacturer warranty/return info available
    • Warranty / Return Support:Manufacturer warranty information available; 30-day voluntary return guarantee noted
    • Additional Feature:Aluminum body material
    • Additional Feature:Specified outlet size (0.31″)
    • Additional Feature:Package dimensions/weight listed
  4. NewYall Smog Air Injection Pump for Mercedes Vehicles

    NewYall Secondary Smog Air Injection Pump for Mercedes C240 C320

    Classic Mercedes Coverage

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    Should you drive a late-90s to mid-2000s Mercedes and need a direct-fit replacement, the NewYall Smog Air Injection Pump is built to restore emissions function across a wide range of C-, E-, S-, G-, R-, SL-, SLK-, ML- and CLS-class models. You’ll find compatibility with C240/C320 (2001–2005), C43 AMG/C280 (1998–2000), CLK320/430/500 and AMG variants (1999–2006). It also fits E320/430/500 and E55 AMG (1998–2006), S430/S500 and CL500/55 (1999–2006), G500/G55, R500, SL500, SLK320 (1999–2008), plus ML320/350/430/500/55 and CLS500/S350 (1998–2007). Install it to regain proper secondary air injection and clear smog test failures.

    • Function:Secondary air injection (smog) pump
    • Vehicle Fitment:Mercedes-Benz (C, CLK, E, S, CL, G, R, SL, SLK, ML, CLS) older-model ranges
    • OEM/Reference Part Numbers:(Various Mercedes-era OEM cross-references implied; model-specific OE compatibility noted)
    • Replacement / Direct-Fit:Designed to fit and function like original equipment (direct replacement)
    • Quality / Testing Claims:Built under quality control standards; OEM-like fit/function
    • Warranty / Return Support:(Warranty/returns not explicitly listed in summary)
    • Additional Feature:Older-model Mercedes focus
    • Additional Feature:Wide model-year span
    • Additional Feature:Covers AMG variants
  5. Secondary Air Injection Pump for Mercedes W203/W463/R230

    Secondary Air Injection Pump Smog Pump A0001405785 99660510400 0001404385 0001404285

    Wide-Mercedes Compatibility

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    Should you drive a Mercedes W203, CL203, W463, or R230 and need a direct, OEM-quality replacement, this Secondary Air Injection Pump is built to match original specifications and drop in without fuss. You’ll get a smog pump compatible with C55 AMG 6.0L and cross-referenced with A0001405785, 0001404385, 0001404285, 0580000018, 0580000017. It’s calibrated to OEM standards, tested for impact, wear, and fatigue, and produced under strict quality control. Installation’s straightforward, but check included accessories and mounting hardware before you start. Verify vehicle compatibility first to avoid returns and guarantee proper emissions control function.

    • Function:Secondary air injection (smog) pump
    • Vehicle Fitment:Mercedes W203/W463/R230 series (including C55 AMG)
    • OEM/Reference Part Numbers:A0001405785, 0001404385, 0001404285, 0001405785, 0580000018, 0580000017
    • Replacement / Direct-Fit:Designed to fit/function like OEM (direct replacement)
    • Quality / Testing Claims:Calibrated to OEM specs; durability tests (impact, wear, fatigue)
    • Warranty / Return Support:OEM-quality claims; advises verifying compatibility; return/warranty not explicitly listed
    • Additional Feature:OEM-calibrated quality
    • Additional Feature:Durability-tested manufacturing
    • Additional Feature:Includes multiple OEM references
  6. JDMSPEED Secondary Air Pump Replacement for Audi & VW

    JDMSPEED New Secondary Air Pump Smog Air Pump 06A959253B Replacement

    Budget VW/Audi Replacement

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    Should you need a direct-fit replacement for Audi or VW models, the JDMSPEED New Secondary Air Pump is a solid choice—designed to match OEM reference numbers (06A959253B/A/E) and fit Audi A4, A6, A8, Q7 and VW Jetta applications. You’ll get a 100% new secondary air (smog) pump built with high-quality components as a direct replacement for the listed part numbers. It supplies secondary air for the emissions control system and replaces failing OEM units. Before ordering, verify model/year fitment and cross-check reference numbers in the product description to confirm compatibility with your vehicle’s OEM specifications.

    • Function:Secondary air injection (smog) pump
    • Vehicle Fitment:Audi and VW models (A4/A6/A8/Q7, Jetta) – verify fit
    • OEM/Reference Part Numbers:06A959253B, 06A959253A, 06A959253E
    • Replacement / Direct-Fit:Direct replacement for listed part numbers
    • Quality / Testing Claims:100% new; built with high-quality components
    • Warranty / Return Support:(Warranty/returns not explicitly listed; purchase guidance to verify fit)
    • Additional Feature:100% new condition
    • Additional Feature:Multiple reference numbers
    • Additional Feature:Emphasis on fit verification
  7. A-Premium Secondary Air Injection Smog Pump for GM Vehicles

    A-Premium Secondary Air Injection Smog Pump Compatible with Chevrolet Silverado

    Best for GM Trucks

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    Should you drive a GM truck or SUV from the initial 2000s and need a durable replacement, the A-Premium Secondary Air Injection Smog Pump is a smart pick—it’s built to handle high under-hood temperatures and resist corrosion so you won’t keep coming back for fixes. You’ll get a plastic and aluminum pump (refs 323503M, AIP1, SKAP913049) with one female connector, two blade terminals, and four hose fittings. It fits many Chevrolet, GMC and Oldsmobile models with 2.2L–8.1L engines. The unit includes mounting hardware and delivers consistent secondary air flow to improve emissions control and efficiency.

    • Function:Secondary air injection (smog) pump
    • Vehicle Fitment:GM trucks/vans/SUVs (Chevrolet, GMC, Oldsmobile) specific years/engines
    • OEM/Reference Part Numbers:323503M, AIP1, SKAP913049
    • Replacement / Direct-Fit:Replacement pump with mounting hardware for listed GM models
    • Quality / Testing Claims:Thermal/corrosion resistance; engineered for long-term reliability
    • Warranty / Return Support:Package includes mounting hardware; warranty/after-sales not explicit in summary
    • Additional Feature:Includes mounting hardware
    • Additional Feature:Multiple hose connectors
    • Additional Feature:Female blade connector
  8. APDTY Secondary Air Injection Smog Pump Kit

    APDTY 19515548 Secondary Air Injection Smog Emissions Pump Complete Upgrade

    Complete Upgrade Kit

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    Should you need a direct, vehicle-specific replacement for Cadillac or Oldsmobile models from the early 2000s, the APDTY 19515548 secondary air injection smog pump kit is built to fit and install with minimal fuss—it’s a complete redesign that includes the pump, hose kit, mounting bracket and isolators so you won’t be scrambling for missing parts. You’ll get a brand-new mechanical lift pump that replaces several OEM numbers (19260940, 19303240, 19515548, 215-480, 215-617) and fits 2000–2004 Cadillac DeVille/Seville and 2001–2003 Oldsmobile Aurora. It’s ready-to-paint, ships since 2014, includes warranty options, and carries a California Prop 65 warning.

    • Function:Secondary air injection (smog) pump (complete kit)
    • Vehicle Fitment:Cadillac and Oldsmobile (DeVille, Seville, Aurora) 2000–2004 / 2001–2003
    • OEM/Reference Part Numbers:19303240, 19515548, 215-617, 215-480, 19260940, 19515549
    • Replacement / Direct-Fit:Complete upgrade kit designed to replace OEM assemblies
    • Quality / Testing Claims:Redesigned pump with upgraded components; quality-controlled kit
    • Warranty / Return Support:Product warranty available; Amazon 30-day return guarantee applies
    • Additional Feature:Complete upgrade kit
    • Additional Feature:Ready-to-paint exterior
    • Additional Feature:Large kit packaging
  9. Secondary Air Injection Smog Pump for Mercedes & Chrysler

    YZHIDIANF Upgraded Secondary Air Injection Pump Smog Pump fit for:-Mercedes

    Best Multi-Brand Fit

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    Should you drive a Mercedes-Benz or Chrysler Crossfire from the late 1990s through the 2000s, this secondary air injection smog pump is customized for you—drop-in fitment covers many C-, E-, S-, CLK-, CL-, CLS-, G- and ML-class models plus the 2004–2008 Crossfire, so you can confirm fit with Amazon’s tool and get back on the road quickly. You’ll get OE reference 05098830AA (and many equivalents), reliable secondary air injection to cut cold-start emissions, improve combustion and fuel economy, and quieter operation under demanding conditions. A two-year unlimited-mileage warranty and experienced after-sales team back the purchase—verify fit before buying.

    • Function:Secondary air injection (smog) pump
    • Vehicle Fitment:Mercedes-Benz (C, CL, CLK, CLS, E, G, ML, S) and Chrysler Crossfire — specific years/engines
    • OEM/Reference Part Numbers:05098830AA and many equivalents (0001403785, A0001403785, 0580000010/0011, 704389000, etc.)
    • Replacement / Direct-Fit:Direct replacement with multiple OE equivalents listed
    • Quality / Testing Claims:Built for demanding conditions; engineered for long-lasting reliable operation
    • Warranty / Return Support:2-year unlimited-mileage quality guarantee; after-sales support team available
    • Additional Feature:Chrysler Crossfire fitment
    • Additional Feature:2-year unlimited warranty
    • Additional Feature:Extensive OE equivalents list

Factors to Consider When Choosing Emission Smog Pumps

Whenever choosing an emission smog pump, you’ll want to check vehicle compatibility range and match OEM part numbers to avoid fitment problems. Look for durable build materials and consider installation complexity so you can decide between a DIY swap or professional help. Finally, weigh the pump’s emissions performance impact to make certain it meets standards without sacrificing reliability.

Vehicle Compatibility Range

Nail down precise vehicle compatibility before you buy an emission smog pump, because part numbers, model years, engine displacements and even mounting details determine whether the unit will fit and function. Check exact model-year and engine displacement fitment rather than relying on the model name, since pumps can differ across years and engine types. Confirm inlet and outlet connection types and diameters (hose barb vs. flare) so hoses mate without modification. Verify the pump’s mounting position and bracket pattern — bolt locations and front/rear placement — match your chassis. Cross-reference OEM numbers with aftermarket equivalents and use VIN-based or verified compatibility lists as applicable to avoid ordering a unit that only appears to fit similar models.

OEM Part Numbers

Because OEM part numbers pinpoint the exact factory-designed secondary air injection pump, you’ll avoid fitment, connection, and performance surprises whenever matching the VIN-specified code to the replacement. Always cross-reference the VIN-specified OEM number with listings and technical sheets to confirm matches for engine type, model year, and emission control configuration. Check legacy and superseded codes too so revisions in manufacturer numbering don’t derail compatibility. Relying on the OEM number prevents mismatches in inlet/outlet sizes, mounting points, and electrical connectors that could complicate installation or cause system failure. While shopping aftermarket, require that listings show equivalent OEM part numbers—then validate specs against the original equipment design and performance requirements before you buy.

Build Material Quality

Pick components that can handle heat, moisture, and exhaust chemicals—those choices determine how long a smog pump will stay reliable. You should favor corrosion-resistant metals like aluminum or stainless steel over plastic housings for high-temperature environments. Inside, choose pumps with brass or stainless shafts and ceramic or precision-machined bearings to cut wear and keep efficiency during continuous duty. Check seals—Viton, silicone, or other elastomers rated above 150°C stop leaks and resist exhaust degradation. Make certain electrical housings and connectors have heat- and moisture-resistant coatings to prevent shorting and corrosion under the hood. Finally, look for tight manufacturing tolerances and precision machining, which minimize air leaks and maintain consistent volumetric flow for reliable secondary-air injection.

Installation Complexity Level

Upon selecting a smog pump, weigh how it will fit into your car and how much hands-on work it’ll actually take—direct-replacement units that match factory mounting points and connectors typically reduce install time about 30–60%, whereas universal pumps can necessitate extra brackets, adapters, or splices. Check connector type and count of electrical terminals and hose fittings so you don’t spend hours fabricating adapters or splicing wires. Confirm access and required tools: pumps tucked under intake or wheelwell covers could need panel removal, jacking, or specialty sockets and shift a 0.5–1 hour job to 2+ hours. Account for transferring or replacing brackets, isolators, or gaskets (15–45 minutes) and any system work—diagnosing or replacing check valves and vacuum lines adds 30–90 minutes.

Emissions Performance Impact

After you’ve figured out how a pump will mount and what the installation will demand, focus on how it actually affects emissions. You’ll want a pump that supplies fresh air during cold start to oxidize unburned hydrocarbons; properly functioning systems can cut VOCs 40–60% in the first 30–120 seconds. Match pump flow (L/min) to your engine: too little reduces after-treatment, too much can upset oxygen sensors and catalytic oxygen storage. Check response time and startup torque—slow spin-up lets rich mixtures pass untreated, raising HC and CO. Make leak-tight plumbing and correct outlet fittings so delivered volume isn’t lost. Finally, pick durable, thermally resistant materials; pump degradation or thermal failure quickly restores higher emissions through disabling the secondary-air system.

Warranty And Support

While a pump’s specs tell you how it should perform, its warranty and support determine how problems get resolved in case they don’t—so don’t overlook them. Check warranty length and coverage (months, years, limited, lifetime) to match expected service life and your risk tolerance. Confirm what’s covered—parts, labor, shipping—and what’s excluded, like improper installation, misuse, or normal wear. Prefer warranties with clear return or replacement processes and specified response times, for example replacement within 30 days or repairs within a set business-day window. Look for documented technical support channels—phone, email, online troubleshooting—and availability during weekends or after-hours for urgent downtime. Verify transferability and requirements (professional installation, proof-of-purchase, inspections) to avoid voiding coverage.

Price Versus Value

Should you weigh price against value for an emission smog pump, look beyond the sticker to the pump’s expected service life, warranty coverage, and likely installation and parts costs so you can estimate a true cost-per-year rather than just an upfront price. Check typical failure intervals—many pumps last 5–10 years—then divide purchase plus expected installation and parts by that span to compare options fairly. Factor in warranty length and what’s covered; longer, clearer warranties cut ownership risk. Inspect build quality indicators like materials, corrosion resistance, and connector type to predict downtime and maintenance. Confirm replacement part availability and labor complexity, since tricky installs raise costs. Finally, prioritize pumps meeting or exceeding OEM specs to avoid emissions failures and related penalties.

Automotive Staff
Automotive Staff

The Automotive Staff is a group of car enthusiasts who share a passion for cars. They enjoy great design, strong performance, and the driving experience, covering everything from everyday cars to high-performance machines.