Exhaust Flanges

Exhaust Flanges: the joint that keeps your system sealed and serviceable

An exhaust flange is the mating collar welded to the end of a pipe so two sections bolt or clamp together instead of being welded solid. Fit one where you need a leak-free, repeatable joint you can take apart later - at a manifold, between a downpipe and mid-pipe, or ahead of a catalytic converter. A V-band flange pair with a clamp centers itself as you tighten, seals on a machined face, and lets you drop a section in minutes; a bolt-on manifold flange set indexes to a fixed pattern. Get the flange right and you stop chasing ticks and blown gaskets.

What ThreePiece stocks

This category holds 164 exhaust flanges across 9 brands, priced from $31 to $219 - the current range for what is in stock, not a promise. Vibrant makes up the bulk with 132 listings, followed by Stainless Bros at 18, then BLOX Racing, QTP, Torque Solution, plus single entries from Bikers Choice, HKS, Kooks Headers and S&S Cycle. Product names reference makes including Honda, Acura, Audi, Nissan, Toyota, Subaru, Mitsubishi, Hyundai, Genesis, Porsche, Ford and BMW, with a listed fitment year range of 1984 to 2023.

How to choose

Two decisions matter: joint type and material. For a serviceable slip-fit joint, a V-band assembly is the pick - the Stainless Bros 3.0in 304SS V-Band Assembly at $88.71 gives you two flanges and one clamp, and the quick-release clamp version at $93.71 trades a few dollars for faster teardown. If weight is the priority and budget is open, Vibrant's titanium V-band assemblies top the range - 3.5in OD at $179.99 and 4in OD at $218.71. Match the flange to your tubing OD, not just "3 inch." For V-twins, choose a manifold-style set instead: the S&S Cycle Big Twin/XL Manifold Flange Set at $75.76, or the chrome Bikers Choice flange kit at $70.71.

What else you need with it

A flange is one joint in a larger system. If you are building from the head back, pair flanges with Headers and Exhaust Pipes, then finish the run with a Muffler and Exhaust Tips. Buyers replacing a whole system instead of splicing often look at Cat-Back Exhaust or a Full System Exhaust. Browse everything under the parent Exhaust section to see how the flange fits your build.

Fitment help and ordering

Listed fitment covers a sample of vehicles including the Honda Civic Si, Harley-Davidson Big Twin and XL, Hyundai Genesis, Porsche 911, and various Volkswagen and BMW models, so confirm your tubing size and pattern before you order. Not sure which flange matches your pipe? Call fitment help at 813-535-5801 or reach the team through Contact Us. All orders ship free, and Affirm and Katapult financing is available.

Exhaust Flanges: the joint that keeps your system sealed and serviceable

An exhaust flange is the mating collar welded to the end of a pipe so two sections bolt or clamp together instead of being welded solid. Fit one where you need a leak-free, repeatable joint you can take apart later - at a manifold, between a downpipe and mid-pipe, or ahead of a catalytic converter. A V-band flange pair with a clamp centers itself as you tighten, seals on a machined face, and lets you drop a section in minutes; a bolt-on manifold flange set indexes to a fixed pattern. Get the flange right and you stop chasing ticks and blown gaskets.

What ThreePiece stocks

This category holds 164 exhaust flanges across 9 brands, priced from $31 to $219 - the current range for what is in stock, not a promise. Vibrant makes up the bulk with 132 listings, followed by Stainless Bros at 18, then BLOX Racing, QTP, Torque Solution, plus single entries from Bikers Choice, HKS, Kooks Headers and S&S Cycle. Product names reference makes including Honda, Acura, Audi, Nissan, Toyota, Subaru, Mitsubishi, Hyundai, Genesis, Porsche, Ford and BMW, with a listed fitment year range of 1984 to 2023.

How to choose

Two decisions matter: joint type and material. For a serviceable slip-fit joint, a V-band assembly is the pick - the Stainless Bros 3.0in 304SS V-Band Assembly at $88.71 gives you two flanges and one clamp, and the quick-release clamp version at $93.71 trades a few dollars for faster teardown. If weight is the priority and budget is open, Vibrant's titanium V-band assemblies top the range - 3.5in OD at $179.99 and 4in OD at $218.71. Match the flange to your tubing OD, not just "3 inch." For V-twins, choose a manifold-style set instead: the S&S Cycle Big Twin/XL Manifold Flange Set at $75.76, or the chrome Bikers Choice flange kit at $70.71.

What else you need with it

A flange is one joint in a larger system. If you are building from the head back, pair flanges with Headers and Exhaust Pipes, then finish the run with a Muffler and Exhaust Tips. Buyers replacing a whole system instead of splicing often look at Cat-Back Exhaust or a Full System Exhaust. Browse everything under the parent Exhaust section to see how the flange fits your build.

Fitment help and ordering

Listed fitment covers a sample of vehicles including the Honda Civic Si, Harley-Davidson Big Twin and XL, Hyundai Genesis, Porsche 911, and various Volkswagen and BMW models, so confirm your tubing size and pattern before you order. Not sure which flange matches your pipe? Call fitment help at 813-535-5801 or reach the team through Contact Us. All orders ship free, and Affirm and Katapult financing is available.