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Exhaust Exhaust Pipes, Systems and Components

Invidia

Invidia 15+ Subaru WRX/STI Single Racing Titanium Tip Cat-back Exhaust

$1,390.20 $973.14 Save $417.06

SKU: I007 HS15SW4GST

In Stock
In Stock
Ships by Jul 31
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: HS15SW4GST

MIA's Description

Upgrade your 2015-2021 Subaru WRX or WRX STI with the Invidia Racing Series Cat Back Exhaust featuring a striking titanium flame-treated tip. Designed for enthusiasts seeking a perfect balance of performance and value, this exhaust system enhances horsepower and torque while delivering a deep, aggressive sound that complements your Subaru’s sporty character. Crafted from high-quality SUS304 stainless steel with CNC-machined flanges and a polished finish, the Invidia cat back exhaust ensures durability and a premium look. Its mandrel-bent piping maximizes exhaust flow and reduces back pressure, resulting in strong mid to top-end power gains. Note that an OEM downpipe to 3-inch cat back adapter may be needed for compatibility with your stock downpipe. Ideal for Subaru WRX and WRX STI owners who want reliable performance upgrades, this exhaust system is a practical choice for daily drivers and track enthusiasts alike. Experience improved throttle response and enhanced engine sound.

Fitment

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Specifications

BrandInvidia
Part NumberI007 HS15SW4GST

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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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