Mid-Pipe
Mid-Pipe: the middle section that ties your header to your cat-back
A mid-pipe is the section of pipe that connects the front of the exhaust to the rear system. It carries exhaust gas away from the manifold or headers, past any catalytic converters and resonators, and hands off to the cat-back. People fit an aftermarket mid-pipe to open up flow, change the tone, or replace a restrictive factory section that leaves power on the table. Whether a mid-pipe runs a high-flow catalytic converter (catted) or a resonator sets how loud and how raw the car sounds under load.
What's in stock at ThreePiece
This category shows 7 mid-pipes in stock from 3 brands: Stainless Works, Remark, and aFe. Prices currently run from $711 to $1,438 for what is on the shelf right now, so treat that as the live range, not a fixed promise.
Fitment data covers vehicles like the Subaru WRX, Toyota GR86, Subaru BRZ, Hyundai Elantra N and Chevrolet Corvette, across model years roughly 2020 to 2024. Product names also list Dodge applications such as the Grand Cherokee. This is the applications we stock, not a coverage guarantee for every trim.
How to choose
The main decision is catted versus resonated. Stainless Works offers high-flow catted mid-pipes such as the Grand Cherokee catted midpipe, which keep catalytic converters in the exhaust path. Remark offers the WRX in two versions: a resonated kit that tames drone, and a non-resonated kit that is louder and more aggressive for the same platform. The trade-off is straightforward: resonated and catted parts are quieter and calmer for daily driving; non-resonated parts are louder. Match the mid-pipe's inlet and outlet to the system you already run so the flanges line up.
What else you need with it
A mid-pipe is one link in the chain. It bolts to headers up front and a rear system out back, so most buyers pair it with a cat-back system or an axle-back system. If you are replacing converters, see catalytic converters; for hardware, check exhaust flanges. Browse the full Exhaust section to see how the pieces fit together.
Fitment and ordering
Confirm the part matches your exact year, engine and existing exhaust before you buy. Our team offers fitment help by phone at 813-535-5801, or reach us through contact us. Every order ships free, and Affirm and Katapult financing is available if you want to split the cost. Ready to build a matched setup? Start with the parts above and let us verify the fit for your car.