MXP

The best MXP exhausts are its Comp RS cat-back systems, which cover popular Japanese sport compacts including the Subaru BRZ, Scion FR-S and Toyota 86, the 2015-2021 Subaru WRX and WRX STI, the Honda Civic Type R, and the GR Corolla. If you want a cat-back with a choice of stainless, burnt, or blue burnt tip finishes, start with the Comp RS listings here and match one to your exact chassis and years.

A cat-back replaces the exhaust from the catalytic converter back, so it is the section that shapes most of the sound you hear and the look at the rear bumper. When comparing systems, check tip finish and exit style — this range includes single, dual-exit, and quad-exit layouts — plus piping fitment for your generation. A cat-back is also a bolt-on section on most applications, making it a common first exhaust step; check your year and model before ordering.

MXP is the single brand in this collection, represented almost entirely by cat-back exhausts. Its Comp RS line is the core range, listed for the 13-21 BRZ, FR-S and 86, the 15-21 WRX and WRX STI, the 17-21 Civic Type R, the 23-26 GR Corolla, and the 08-15 Evo X, with an SP cat-back line for the BRZ, FR-S and 86 and for the 15-21 WRX and WRX STI as an alternative within the same brand. Tip choice is a big part of the MXP offer, from plain stainless to burnt and blue burnt finishes.

Good starting points are the Comp RS cat-back with stainless tips for the BRZ, FR-S and 86, the Comp RS system with burnt tips for the Civic Type R, and the Comp RS cat-back for the 15-21 WRX and WRX STI. For background reading, see our guide to the best exhaust for the Subaru WRX.

Invidia is the natural comparison, with a large cat-back range for Subaru and other Japanese platforms at several sound levels. Borla offers another long-running cat-back range, generally chosen for a well-known name and a mellow-to-aggressive choice by series. Comparing MXP against both helps weigh tip styling, exit layout, and price, and newer-car owners can browse the GR Corolla collection.

Does an MXP cat-back need a tune?

A cat-back alone generally does not change the parts engine management is calibrated around, but requirements vary by car. If you later add a front pipe or downpipe, check tuning requirements for your platform before driving on the new setup.

What is the difference between Comp RS and SP?

Both are MXP cat-back lines in this collection, listed for overlapping BRZ, FR-S and 86 and WRX applications. Compare the tip finish, exit style, and exact year range on each listing rather than assuming the lines interchange.

How hard is a cat-back install?

Cat-backs are typically a bolt-on job on ramps or a lift, reusing factory hanger locations, though rusted hardware on older cars can add time. Keep the old gaskets and bolts until the new system is aligned and leak-checked.

Will a burnt tip finish change over time?

Tip finishes live in exhaust heat, so some color change with use is normal. Regular gentle cleaning helps, but avoid abrasive polishing on burnt and blue burnt finishes if you want to keep the original look.