Perrin Brushed Quad Tip Cat Back Exhaust Subaru WRX / STI Sedan 2011-2021

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Exhaust Cat Back

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Part #: PSP-EXT-347BR

Perrin Brushed Quad Tip Catback Exhaust was designed specifically with the WRX and STI sedan body style in mind, ensuring the least amount of bends and the highest flow possible without compromising sound quality or performance. The Perrin Performance exhaust system for the WRX features full high polish 304 stainless steel construction, and quad 3.5" slash cut tips.

The 3" piping is held together with V-band clamps to eliminate gaskets and leaking! This system will provide an extremely sporty signature Subaru exhaust note with minimal highway drone. The advantages don't end with a new sporty note though, as Perrin has observed performance gains of 8-10 horsepower and torque throughout the rev range with one of these units on an otherwise bone stock WRX.

WARNING: Cancer and Reproductive Harm
Note: Are you using a stock j pipe or downpipe? If yes, the GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter p/n 077046, is required.


Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.

Perrin Brushed Quad Tip Cat Back Exhaust Subaru WRX / STI Sedan 2011-2021
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