Invidia [15-21 WRX] [15-21 WRX STI] Gemini R400 Cat-Back Exhaust - Titanium Quad Tips
The Invidia Gemini R400 Cat-Back Exhaust for the 2015-2021 Subaru WRX and WRX STI Sedan is the benchmark cat-back for the VA chassis, balancing strong flow with an aggressive tone. Built from 3-inch (76mm) SUS304 stainless steel with mandrel-bent piping and CNC-machined flanges, the system delivers a deep, pronounced exhaust note throughout the entire RPM band while staying composed at highway cruise. It exits through quad 101mm (4-inch) single-layer burnt titanium tips for Invidia's signature rear-end statement, and hangers welded onto the OEM locations make installation a direct bolt-on.
- 2015-2021 Subaru WRX & WRX STI Sedan (VA chassis)
- 3-inch (76mm) SUS304 stainless steel mandrel-bent piping, CNC-machined flanges
- Quad 101mm (4-inch) single-layer burnt titanium tips
- Deep, aggressive exhaust note; refined at cruise
- OEM-location hangers; new gaskets and hardware included
- A stock-DP-to-aftermarket-cat-back adapter (e.g. GrimmSpeed 077046) is required with a stock downpipe
- Part number: HS15STIGM4ST
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
International Orders (Outside USA)
Please be aware your country may charge import fees of up to 20% in some cases. If delivery is refused, return shipping costs us 4x the original shipping fee, so we will charge a 50% restocking fee. By purchasing you agree to these terms.
Terms of Service:
By clicking purchase, you confirm you have read and agree to the TOS and Shipping & Return policies which are published at the bottom of SLRspeed.com
The Premium Suspension Company
Trusted by top racing and drifting teams worldwide.
