Exhaust Exhaust Pipes, Systems and Components

ISR Performance

ISR Single GT Cat-Back Exhaust System

$574.75

SKU: IS-GT-GT86-ISR

In Stock
In Stock
Ships by Aug 3
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The ISR Performance Single GT exhaust system is a cat-back upgrade engineered for the Toyota 86, GR86, Scion FR-S, and Subaru BRZ. Constructed from mandrel-bent stainless steel, it ensures high reliability and quality. It is suitable for both naturally aspirated and forced induction applications. Key features include a resonated mid-section for enhanced sound, a lighter weight compared to the factory exhaust, and precision TIG welding for superior construction. The brushed stainless steel finish is complemented by a polished tip and muffler, with the exhaust piping measuring 3 inches in diameter and the muffler tip at 4.5 inches. Included in the package are a front pipe with a resonator box, a 3-inch muffler section with a 4.5-inch tip, two 3-inch exhaust gaskets, and four bolts with nuts. Please note: This product is legally intended for use only in competition vehicles which may never be registered, licensed, and/or used on public streets or highways, or for use in other exempted vehicles.

MIA's Description

The ISR Performance Single GT exhaust is a cat-back exhaust system designed for the Toyota 86, GR86, Scion FR-S, and Subaru BRZ. It is constructed from mandrel-bent stainless steel for reliability and quality. This exhaust system aims to maximize horsepower through unrestricted flow while producing a deep, aggressive tone.

Fitment

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Specifications

BrandISR Performance
Part NumberIS-GT-GT86-ISR
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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