Cat-Back Systems

Cat-Back Systems: the bolt-on exhaust upgrade from the cat back to the tips

A cat-back system replaces everything downstream of the catalytic converter: the intermediate piping, the muffler, and the tips. Because it starts behind the cat, it is one of the more straightforward exhaust jobs you can do, and it is where most of the sound and flow gains from a bolt-on come from. Fit one to open up the tone, get larger-diameter piping and a freer-flowing muffler than the stock unit, and change how the tips look out back. Our cat-back systems come as matched kits, so the piping, hangers, and clamps are engineered to line up with the factory mounting points on your car.

What ThreePiece stocks

There are 332 cat-back systems on this page, spanning 23 brands. Magnaflow is the deepest with 103 kits, followed by CORSA Performance (33), HKS (25), Invidia (23), AWE Tuning (22), and both aFe and Borla at 20 each. Smaller runs come from GReddy, Roush, Skunk2 Racing, Akrapovic, Gibson, Stainless Works, and more. Current in-stock pricing runs from $246 to $12,058 - that range is what is live now, not a standing offer.

At the accessible end you will find bolt-on kits for daily drivers. At the top sit systems like the Akrapovic Evolution Line titanium cat-back with carbon tips for the F93 M8 and the F91/F92 version. Corvette C8 owners have the Corsa 3in valved cat-back with carbon fiber tips, the Corsa version with black quad tips, and the AWE SwitchPath system for the C8 Z06.

How to choose

The main decisions here are valved versus fixed, tip material and finish, and how loud you want to live with it. Valved kits like the Corsa and AWE SwitchPath systems let you shift between a quiet cruise and an open note, which matters if the car sees daily miles. Fixed systems are simpler and usually cost less. Titanium builds like the Akrapovic kits sit at the premium end; stainless kits from brands like Magnaflow and Borla cover most everyday budgets. Match the tip diameter and finish - polished, black, carbon - to your bumper cutout and your taste.

What else you need

If you only want to swap the rear section, look at axle-back exhaust systems. For the full picture, compare cat-back exhaust, the cat back listings, and full system exhaust. To go further upstream, browse headers and catalytic converters, or finish the look with exhaust tips. Everything sits under the main Exhaust section.

Fitment and ordering

Fitment data is attached to 305 of these kits, with strong coverage across Ford, Toyota, Honda, Chevrolet, Subaru and Jeep, on vehicles like the Honda Civic, Ford Mustang, Toyota Tacoma, Jeep Gladiator, Subaru WRX and Chevrolet Corvette, spanning model years 1959-2026. Confirm your exact year, make and model before ordering. Call our team at 813-535-5801 for fitment help, or reach us through contact us. All orders ship free, and Affirm and Katapult financing is available.

Cat-Back Systems: the bolt-on exhaust upgrade from the cat back to the tips

A cat-back system replaces everything downstream of the catalytic converter: the intermediate piping, the muffler, and the tips. Because it starts behind the cat, it is one of the more straightforward exhaust jobs you can do, and it is where most of the sound and flow gains from a bolt-on come from. Fit one to open up the tone, get larger-diameter piping and a freer-flowing muffler than the stock unit, and change how the tips look out back. Our cat-back systems come as matched kits, so the piping, hangers, and clamps are engineered to line up with the factory mounting points on your car.

What ThreePiece stocks

There are 332 cat-back systems on this page, spanning 23 brands. Magnaflow is the deepest with 103 kits, followed by CORSA Performance (33), HKS (25), Invidia (23), AWE Tuning (22), and both aFe and Borla at 20 each. Smaller runs come from GReddy, Roush, Skunk2 Racing, Akrapovic, Gibson, Stainless Works, and more. Current in-stock pricing runs from $246 to $12,058 - that range is what is live now, not a standing offer.

At the accessible end you will find bolt-on kits for daily drivers. At the top sit systems like the Akrapovic Evolution Line titanium cat-back with carbon tips for the F93 M8 and the F91/F92 version. Corvette C8 owners have the Corsa 3in valved cat-back with carbon fiber tips, the Corsa version with black quad tips, and the AWE SwitchPath system for the C8 Z06.

How to choose

The main decisions here are valved versus fixed, tip material and finish, and how loud you want to live with it. Valved kits like the Corsa and AWE SwitchPath systems let you shift between a quiet cruise and an open note, which matters if the car sees daily miles. Fixed systems are simpler and usually cost less. Titanium builds like the Akrapovic kits sit at the premium end; stainless kits from brands like Magnaflow and Borla cover most everyday budgets. Match the tip diameter and finish - polished, black, carbon - to your bumper cutout and your taste.

What else you need

If you only want to swap the rear section, look at axle-back exhaust systems. For the full picture, compare cat-back exhaust, the cat back listings, and full system exhaust. To go further upstream, browse headers and catalytic converters, or finish the look with exhaust tips. Everything sits under the main Exhaust section.

Fitment and ordering

Fitment data is attached to 305 of these kits, with strong coverage across Ford, Toyota, Honda, Chevrolet, Subaru and Jeep, on vehicles like the Honda Civic, Ford Mustang, Toyota Tacoma, Jeep Gladiator, Subaru WRX and Chevrolet Corvette, spanning model years 1959-2026. Confirm your exact year, make and model before ordering. Call our team at 813-535-5801 for fitment help, or reach us through contact us. All orders ship free, and Affirm and Katapult financing is available.