A thin, cheap exhaust flange can crack or warp long before the pipe rusts, causing noisy leaks and lost power.
Split flanges in 2.0, 2.25, and 2.5-inch sizes let you make weld-free repairs quickly.
Stainless or zinc-coated flanges resist corrosion and last much longer than plain steel.
Reinforced gaskets, correct bolt patterns, and thicker flange steel keep bolts tight through repeated heat cycles.
| 2 inch Exhaust Flange Repair kit 2PCS Split Flanges with 2 Bolts. |
| Welding-Free Fix | Inner/Center Diameter (fits pipe ID/OD): 2.00 in (internal diameter) | Split / Two-piece Design: Split flanges (2 separable pieces) | Material / Construction: Galvanized carbon steel | VIEW LATEST PRICE | Read Our Analysis |
| 2.25″ Split Flange Exhaust Repair Kit (Pack of 2) |
| Precision Fit | Inner/Center Diameter (fits pipe ID/OD): 2.25 in (inner diameter / fits 2.25 in OD) | Split / Two-piece Design: Split flange (2-bolt flat oval split design) | Material / Construction: High-quality steel, galvanized (silver zinc coating) | VIEW LATEST PRICE | Read Our Analysis |
| 2.5″ Car Split Exhaust Flange Repair Kit |
| Heavy-Duty Repair | Inner/Center Diameter (fits pipe ID/OD): 2.50 in (center hole ID) | Split / Two-piece Design: Split (two-part) flange | Material / Construction: Carbon steel, galvanized finish | VIEW LATEST PRICE | Read Our Analysis |
| Stainless Steel Exhaust Adapter 2.5″ to 3 |
| Stainless Adapter | Inner/Center Diameter (fits pipe ID/OD): 2.50–3.00 in (adapter reduces 2.5″ to 3″) | Split / Two-piece Design: Not a split flange (solid adapter with flange) — functionally adapter but includes flange face | Material / Construction: T201 stainless steel pipe; mild steel flange | VIEW LATEST PRICE | Read Our Analysis |
| Universal 2.5″ Exhaust Flange Repair Kit with Bolts |
| Universal Fit | Inner/Center Diameter (fits pipe ID/OD): 2.50 in or 2.00 in (available sizes; this listing references 2.5″ option) | Split / Two-piece Design: Split flange design (set) | Material / Construction: Low-carbon steel | VIEW LATEST PRICE | Read Our Analysis |
| 2″ Split Exhaust Flange Repair Kit (Pack of 2) |
| Value Pack | Inner/Center Diameter (fits pipe ID/OD): 2.00 in (hole/inner diameter) | Split / Two-piece Design: Split flange (2-bolt flat split flange) | Material / Construction: High-quality steel, galvanized (silver zinc) | VIEW LATEST PRICE | Read Our Analysis |
| 2-Pack 2.5″ Reinforced Car Exhaust Flange Gaskets |
| Superior Sealing | Inner/Center Diameter (fits pipe ID/OD): 2.51 in (inner diameter) | Split / Two-piece Design: Gasket (not split flange; replaces flange gasket) | Material / Construction: Galvanized steel outer layers with graphite-asbestos middle | VIEW LATEST PRICE | Read Our Analysis |
| Car Exhaust Manifold Bolt & Nut Kit (M10x1.5) |
| Fastener Kit | Inner/Center Diameter (fits pipe ID/OD): N/A (bolt/stud kit — no pipe diameter; used with manifold/exhaust flanges) | Split / Two-piece Design: Not applicable (bolt & nut kit) | Material / Construction: Manganese steel & 45-gauge steel (fastener materials) | VIEW LATEST PRICE | Read Our Analysis |
| Triangular 2.5″ Car Split Exhaust Flange |
| Triangular Strength | Inner/Center Diameter (fits pipe ID/OD): 2.50 in (inner diameter) | Split / Two-piece Design: Split (two-piece triangular split flange) | Material / Construction: Carbon steel, galvanized coating | VIEW LATEST PRICE | Read Our Analysis |
| 2.5″ Split Flange Exhaust Repair Kit (Carbon Steel) |
| Reliable Replacement | Inner/Center Diameter (fits pipe ID/OD): 2.50 in (available size option shown; also 2.0″ & 3.0″ variants) | Split / Two-piece Design: Split flange (folio/split design) | Material / Construction: Low-carbon / mild steel | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
2 inch Exhaust Flange Repair kit 2PCS Split Flanges with 2 Bolts.
In case you need a fast, reliable fix for a 2 inch exhaust connection, this 2 inch Exhaust Flange Repair Kit is a great choice for mechanics and DIYers who want solid results without welding. You’ll get two split flanges sized for a 2 inch internal diameter and four hex socket head screws. The galvanized carbon steel feels sturdy and resists oxidation, so it holds up in tough conditions. You won’t need pipe modification; you position the flange, bolt tight, and get superior sealing and vibration resistance. That makes professional grade repairs simple, quick, and reassuring for both pros and home users.
- Inner/Center Diameter (fits pipe ID/OD):2.00 in (internal diameter)
- Split / Two-piece Design:Split flanges (2 separable pieces)
- Material / Construction:Galvanized carbon steel
- Hardware Included (bolts/nuts):4 hex socket head screws (2PCS flanges + bolts)
- Corrosion / Heat Resistance (coating or high-temp suitability):Galvanized (oxidation resistant) — durable for demanding conditions
- Installation Method (weld-free / bolt-on):Bolt-on; no welding or pipe modification required
- Additional Feature:0.3″ flange thickness
- Additional Feature:Corner-to-corner 4.31″
- Additional Feature:Welding-free installation
2.25″ Split Flange Exhaust Repair Kit (Pack of 2)
You’ll love this 5″ split flange exhaust repair kit provided you need a quick, sturdy fix for larger exhaust pipes on cars or light trucks. You get two split flanges sized to fit a 2.25 inch inner diameter pipe, so they match common 57 mm exhaust tubes. They’re made from high quality steel and coated with silver zinc to resist rust, so they’ll hold up over time. Installation is simple. You don’t have to cut the pipe. Four hex socket head bolts come in the pack and you’ll tighten them to secure the joint. This kit feels reliable and easy to use.
- Inner/Center Diameter (fits pipe ID/OD):2.25 in (inner diameter / fits 2.25 in OD)
- Split / Two-piece Design:Split flange (2-bolt flat oval split design)
- Material / Construction:High-quality steel, galvanized (silver zinc coating)
- Hardware Included (bolts/nuts):4 hex socket head screws (2 flanges + 4 bolts)
- Corrosion / Heat Resistance (coating or high-temp suitability):Galvanized with silver zinc coating (corrosion/rust resistant)
- Installation Method (weld-free / bolt-on):Bolt-on; no cutting of exhaust pipe required
- Additional Feature:Flat oval 2-bolt design
- Additional Feature:Pack quantity: 2
- Additional Feature:57 mm (2.25″) OD fit
2.5″ Car Split Exhaust Flange Repair Kit
Should you need a fast, no-fuss fix for a 2.5 inch exhaust pipe, this split car exhaust flange repair kit is made for DIYers and mobile mechanics who want to avoid cutting or welding and get back on the road quickly. You’ll find two separable carbon steel halves that clamp around a 2.5 inch center ID and align easily. Bolt-hole spacing fits 3.05 to 4.64 inches with centers at 3.83 inches. It measures 4.93 × 3.27 × 0.3 inch. The galvanized finish fights rust. Two bolts and two nuts are included, so you can install and tighten in minutes.
- Inner/Center Diameter (fits pipe ID/OD):2.50 in (center hole ID)
- Split / Two-piece Design:Split (two-part) flange
- Material / Construction:Carbon steel, galvanized finish
- Hardware Included (bolts/nuts):2 bolts + 2 nuts (included)
- Corrosion / Heat Resistance (coating or high-temp suitability):Galvanized finish (enhanced corrosion resistance; heat-resistant carbon steel)
- Installation Method (weld-free / bolt-on):Bolt-on; eliminates need for cutting or welding
- Additional Feature:Bolt-hole spacing range
- Additional Feature:Overall size provided
- Additional Feature:Includes nuts with bolts
Stainless Steel Exhaust Adapter 2.5″ to 3
Choose this stainless steel exhaust adapter whenever you need a strong, rust-resistant reducer that links a 2.5 inch pipe to a 3 inch system without fuss. You’ll get a 6 inch T201 stainless pipe that resists corrosion and stays nonmagnetic, paired with a solid mild steel flange. Inner diameter tolerance sits at ±0.12 inch, wall thickness is 0.059 inch, and flange hole centers measure 3.86 inch. Use it to join pipes, tubing, manifolds, headers, or to adapt an existing header socket and flange. Check the exact sizes before buying, since fit matters. It replaces part 41726 and upgrades flange setup.
- Inner/Center Diameter (fits pipe ID/OD):2.50–3.00 in (adapter reduces 2.5″ to 3″)
- Split / Two-piece Design:Not a split flange (solid adapter with flange) — functionally adapter but includes flange face
- Material / Construction:T201 stainless steel pipe; mild steel flange
- Hardware Included (bolts/nuts):No bolts/nuts listed as included (adapter only)
- Corrosion / Heat Resistance (coating or high-temp suitability):T201 stainless steel pipe (corrosion-resistant); mild steel flange
- Installation Method (weld-free / bolt-on):Slip-fit adapter (clamp/weld or bolt to flange as needed) — designed as adapter to connect components; check fit
- Additional Feature:6″ pipe length
- Additional Feature:T201 nonmagnetic stainless
- Additional Feature:Mild-steel flange
Universal 2.5″ Exhaust Flange Repair Kit with Bolts
Should you need a quick, durable fix for a leaking or damaged exhaust flange, this universal 2.5 inch split flange repair kit is a smart choice for DIYers and mechanics who want fast results without welding. You’ll get low carbon steel flanges that resist heat, rust, and corrosion so they last. The split design lets you bolt the pieces around the pipe, so you won’t cut or weld. The kit includes two split flanges and two bolts for secure connections. It fits cars, trucks, SUVs, vans, and motorcycles, and helps restore exhaust sealing and engine efficiency quickly.
- Inner/Center Diameter (fits pipe ID/OD):2.50 in or 2.00 in (available sizes; this listing references 2.5″ option)
- Split / Two-piece Design:Split flange design (set)
- Material / Construction:Low-carbon steel
- Hardware Included (bolts/nuts):2 flange bolts (included)
- Corrosion / Heat Resistance (coating or high-temp suitability):Low-carbon steel; high-temp resistant, corrosion-resistant, rust-proof
- Installation Method (weld-free / bolt-on):Bolt-on; no welding or cutting required
- Additional Feature:Available multiple sizes
- Additional Feature:Low-carbon steel construction
- Additional Feature:Replaces damaged gaskets
2″ Split Exhaust Flange Repair Kit (Pack of 2)
In case you want a quick, reliable way to fix a 2 inch exhaust pipe without cutting or welding, this 2″ split exhaust flange repair kit is a great choice for DIYers and pro mechanics alike. You get two 2″ split flanges and four hex socket head bolts, so you can repair or modify a 2″ outer diameter pipe fast. The flanges are 0.3 thick steel, galvanized with silver zinc for rust protection, and built to last. Installation is simple and doesn’t require cutting. You’ll feel confident using this kit on cars and motorcycles, aware it fits well and stays secure.
- Inner/Center Diameter (fits pipe ID/OD):2.00 in (hole/inner diameter)
- Split / Two-piece Design:Split flange (2-bolt flat split flange)
- Material / Construction:High-quality steel, galvanized (silver zinc)
- Hardware Included (bolts/nuts):4 hex socket head screws (pack of 2 flanges + bolts)
- Corrosion / Heat Resistance (coating or high-temp suitability):Galvanized with silver zinc (corrosion/rust protection)
- Installation Method (weld-free / bolt-on):Bolt-on; easy installation, no cutting required
- Additional Feature:Pack of 2 flanges
- Additional Feature:Silver zinc galvanization
- Additional Feature:Fits 51 mm OD pipe
2-Pack 2.5″ Reinforced Car Exhaust Flange Gaskets
Should you want a reliable, long-lasting seal for common exhaust repairs, this 2-pack of 2.5 inch reinforced flange gaskets is often the right choice for DIYers and mechanics who need a solid fit without fuss. You’ll appreciate the three-layer build with galvanized steel outside and a graphite-asbestos core, which stands up to heat, pressure, and corrosion. Check the 2.51 inch ID and bolt hole spans of 5.11 and 3.34 inches against your flange before buying. You place the gasket, align the holes, and tighten nuts slowly. These gaskets cut leaks, lower noise, and help the engine run efficiently.
- Inner/Center Diameter (fits pipe ID/OD):2.51 in (inner diameter)
- Split / Two-piece Design:Gasket (not split flange; replaces flange gasket)
- Material / Construction:Galvanized steel outer layers with graphite-asbestos middle
- Hardware Included (bolts/nuts):No bolts (gaskets only; package of 2 gaskets)
- Corrosion / Heat Resistance (coating or high-temp suitability):Galvanized steel outer layers; high-temperature resistant gasket
- Installation Method (weld-free / bolt-on):Gasket install: bolt-on between flanges (no welding)
- Additional Feature:Three-layer construction
- Additional Feature:Graphite-asbestos core
- Additional Feature:Reduces engine noise
Car Exhaust Manifold Bolt & Nut Kit (M10x1.5)
Should you work on older cars or do regular exhaust repairs, this Car Exhaust Manifold Bolt and Nut Kit (M10x1.5) is a smart pick because it gives you strong, heat-ready fasteners that keep your exhaust sealed and steady. You get two studs, nuts, washers, and springs, sized to common fitments. The springs absorb shock and compress or extend under heat so the gasket stays pressed and the seal holds. Made from manganese and 45-gauge steel, these pieces resist heat and vibration. Measure the 2.9 inch length and 1.5 mm pitch to confirm fit before you buy.
- Inner/Center Diameter (fits pipe ID/OD):N/A (bolt/stud kit — no pipe diameter; used with manifold/exhaust flanges)
- Split / Two-piece Design:Not applicable (bolt & nut kit)
- Material / Construction:Manganese steel & 45-gauge steel (fastener materials)
- Hardware Included (bolts/nuts):2 studs, 2 nuts, 2 washers, 2 springs (bolt kit)
- Corrosion / Heat Resistance (coating or high-temp suitability):Manganese & 45-gauge steel; high-temperature resistant hardware
- Installation Method (weld-free / bolt-on):Bolt/stud kit for manifold — used to fasten/secure gaskets; no welding
- Additional Feature:Includes springs and washers
- Additional Feature:Shock-absorbing springs
- Additional Feature:Manganese + 45-gauge steel
Triangular 2.5″ Car Split Exhaust Flange
Should you want a simple, reliable way to join a flared Y-type pipe to a 2.5 inch exhaust line, this triangular split flange is a great choice for DIYers and home mechanics who value an easy, no-weld solution. You’ll get two matched carbon steel halves with a galvanized finish that resist rust and handle continuous pressure. The flange fits a 2.5 inch inner diameter and adapts to 2.25 inch OD flared Y pipes. It ships with two bolts, nuts, and washers sized for 0.49 inch holes set 2.94 inches apart. Measure beforehand, then clamp, bolt, and drive with confidence.
- Inner/Center Diameter (fits pipe ID/OD):2.50 in (inner diameter)
- Split / Two-piece Design:Split (two-piece triangular split flange)
- Material / Construction:Carbon steel, galvanized coating
- Hardware Included (bolts/nuts):2 bolts, 2 nuts, 2 washers (included)
- Corrosion / Heat Resistance (coating or high-temp suitability):Galvanized coating for extended service life (heat/pressure resistant)
- Installation Method (weld-free / bolt-on):Bolt-on split flange; no welding required
- Additional Feature:Triangular hole pattern
- Additional Feature:Bolt hole diameter 0.49″
- Additional Feature:Adapts to flared Y-pipes
2.5″ Split Flange Exhaust Repair Kit (Carbon Steel)
In case you work on cars or like fixing things yourself, the 2.5 inch split flange exhaust repair kit made from carbon steel is a smart pick for quick, reliable flange fixes. You’ll get a flat oval split flange and two bolts that slip onto a flare tube and bolt to your existing flange without welding or cutting. The mild steel holds up to heat and pressure, so you can trust it near your turbo, intercooler, or exhaust. Parts are precision machined for easier handling. Pick the correct size, 2.0, 2.5, or 3.0 inch, before you buy.
- Inner/Center Diameter (fits pipe ID/OD):2.50 in (available size option shown; also 2.0″ & 3.0″ variants)
- Split / Two-piece Design:Split flange (folio/split design)
- Material / Construction:Low-carbon / mild steel
- Hardware Included (bolts/nuts):2 flange bolts (included)
- Corrosion / Heat Resistance (coating or high-temp suitability):Low-carbon/mild steel; withstands high temperature and high pressure
- Installation Method (weld-free / bolt-on):Bolt-on split flange; no welding or cutting required
- Additional Feature:Flat oval (fat elliptical)
- Additional Feature:Precision machined parts
- Additional Feature:Multi-size availability
Factors to Consider When Choosing Car Exhaust Flanges
Whenever you pick an exhaust flange, consider initially about what it’s made of and how it’s coated so it won’t rust or fail under heat. You’ll also need the right pipe diameter and bolt pattern to match your system, plus a flange that handles the installation method you prefer. Keep these points in mind and you’ll save time, avoid leaks, and feel confident the repair will last.
Material And Coating
Pick the right metal and coating and you’ll avoid a lot of headaches down the road. You want stainless steel like T201, 304, or 316 for strong corrosion resistance and long life in hot, wet exhaust conditions. Should budget matter, galvanized or zinc coated mild steel gives decent rust protection at initially, but it won’t last as long under constant heat. Low carbon steel is easy to shape and strong, yet it needs a protective finish to stop oxidation. Pay attention to coating type and thickness since thin zinc or paint can crack with repeated heating and cooling. Also match material thermal expansion and tensile strength to your engine and mounting, so the flange won’t warp, crack, or loosen over time.
Correct Pipe Diameter
Sizing matters a lot while you fit exhaust flanges, so you want the flange inner diameter to match the pipe outer diameter exactly; for example, choose a 2.5″ flange for a 2.5″ OD pipe so the parts seal and seat without gaps. You should verify the actual pipe OD rather than a nominal size because wall thickness changes. That step keeps you from buying the wrong part. Also account for typical manufacturing tolerances, about ±0.12″, so plan for small shims or gaskets as necessary. Whenever joining different diameters, pick a reducer or adapter with clear inner and outer diameter specs so flow stays smooth and leaks drop. Confirm bolt-center spacing next to the pipe centerline to make certain alignment and easy installation.
Bolt Pattern Match
You matched the pipe diameter, and now you’ll want to make sure the bolt pattern lines up just as well so the parts seal and stay strong. Start by measuring center-to-center bolt-hole spacing on both flanges. That spacing for many 2.5 inch systems falls between about 3.05 and 4.64 inches, so check yours carefully. Next verify the number and arrangement of holes, since a 2-bolt flat, oval, or triangular 3-bolt pattern must match or you won’t get proper alignment. Also check bolt-hole diameter, typically near 0.49 inch, so bolts or studs pass freely. Compare inner pipe ID and overall flange length and width to the factory part. Matching those details avoids interference, uneven clamp pressure, stress points, and future leaks or broken bolts.
Heat And Corrosion Resistance
Because exhaust parts see heat, moisture, and road grime all the time, you’ll want flanges that can take a beating without giving up. Pick stainless steels like 304 or 321 whenever you need steady high heat resistance. These alloys handle continuous temperatures near 800 to 900°F and resist oxidation and scaling. In case you use galvanized or zinc coated carbon steel, know it fares well only in milder heat under about 400 to 600°F before coatings deteriorate. For turbos and headers that cycle hot and cool, choose alloys and finishes that resist thermal fatigue and keep strength after repeated heating. Also check flange thickness and hardness so parts don’t creep or warp. Match fasteners and finishes to avoid galvanic corrosion from road salts and exhaust condensates.
Installation Method Required
During the moment you select an exhaust flange, consider about how it will be installed and what tools you can use, because the right installation method makes the job easier and the joint last longer. Whenever you require a welding-free, clamp-on option, choose split two-piece flanges that slip around existing pipe and tighten with bolts. In case you desire permanence and strength and you can weld, use solid weld-on flanges. For parts that must line up with bolt patterns or be taken apart often, pick bolted flat-oval or triangular designs that match hole spacing. Always verify bolt-hole center-to-center distances and diameters to avoid misalignment while fastening. Reflect on tight spaces and vertical pipes since split flanges often fit where solid ones do not.
Vibration And Seal Strength
After you pick the right installation method, consider how vibration will affect the seal between flange and pipe, because a good joint needs both strength and steadiness. You want flanges made from stiff, high tensile materials like carbon or stainless steel so they won’t bend under vibration and will hold clamping force. Also choose thickness around 0.3 in or confirmed stiffness to keep gaskets compressed during cycles. Match bolt hole spacing and use enough fasteners so clamp load spreads evenly, reducing local flex. Prefer split or flanged designs that let you clamp axially and circumferentially without welding, which helps damp vibration. Finally pick corrosion resistant finishes and gasket materials that keep preload and stop creep so the seal lasts.
