

Invidia 3in Stainless Downpipe
UNPARALLELED PERFORMANCE
Invidia exhaust systems are engineered with exceptional craftsmanship, premium materials, and cutting-edge design. Their 3in downpipe with high flow catalytic converter improves engine performance significantly by reducing back pressure. A divorced cast bellmouth enhances the flow out of the wastegate to prevent boost creep before providing a smooth transition into the 3 inch tubing for minimal restriction. The divorced design separates the wastegate flow at turbo outlet to prevent a disruption of the main exhaust flow. Fabrication from 304 series stainless steel ensures the downpipe lives a long rust-free life while cast stainless flanges provide a leak-proof installation.
This is a fundamental upgrade whatever your performance goals may be. ECU re-calibration is required when fitting this part.
An additional oxygen sensor bung is provided for use with a wide band AFR gauge. A plug is supplied if it is unused.
Manufacturer Part No: HS08SW1DOCB
What it fits:
- STI MY08-21
- WRX MY08-14
- Legacy GT MY05-09
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Usually ready in 24 hoursPairs well with

Invidia 3in Stainless Downpipe
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