Invidia R400 Gemini Single Layer Cat Back Exhaust w/ Titanium Burnt Tips - 2015-2021 Subaru WRX / STI

The Gemini R400: Quad Tips, Track Character, Street Fitment

The Invidia Gemini R400 Cat-Back Exhaust with Titanium Burnt Quad Tips for the 2015-2021 Subaru WRX / STI is the multi-tip option in the Invidia lineup. Four Titanium Burnt tips exit at the rear of the VA WRX/STI in the Gemini configuration, giving the car an aggressive rear presentation that single-exit systems can't match. The R400 designation reflects higher-flow tuning versus the standard Gemini — larger piping, more aggressive sound character. SUS304 stainless construction, mandrel-bent piping, CNC-machined flanges, direct OEM hanger fitment.

Quad Tip Gemini Configuration — The Rear End Statement

The Gemini quad-tip layout is a visual choice as much as a performance one — four exhaust outlets give the rear of the VA WRX/STI a wider, more finished appearance. The R400 Gemini uses SUS304 stainless steel mandrel-bent piping throughout, maintaining full internal diameter at every bend. CNC-machined flanges provide flat, leak-free sealing at every connection point.

OEM Hanger Fitment, Complete Hardware

The Gemini R400 bolts directly to the OEM downpipe flange and hanger positions on the VA WRX/STI — no modification required. New gaskets and hardware are included. The quad-tip exit sits at the factory tip cutout location for a clean, factory-integrated appearance.

Key Features

• Platform: 2015-2021 Subaru WRX / STI
• SUS304 stainless steel construction
• 3-inch mandrel-bent piping — full diameter maintained at every bend
• Quad exit — Titanium Burnt tips
• CNC-machined flanges — flat, leak-free sealing at all connection points
• Exhaust hangers welded at OEM locations — direct bolt-in fitment
• Improves horsepower, torque, and throttle response
• New gaskets and hardware included

Fitment Notes

• Platform: 2015-2021 Subaru WRX / STI
• Direct bolt-in at OEM downpipe flange and hanger locations
• No modification to the vehicle required

Straight From Subispeed

The Gemini R400 is the exhaust for VA WRX/STI owners who want the rear of the car to make a visual statement alongside the performance one. The quad-tip layout is distinctive — it's immediately recognizable as something beyond a standard single-exit setup. The R400's higher-flow tuning adds to the sound character compared to the standard Gemini, making this both a visual and performance upgrade over the entry-level options. OEM hanger fitment and included hardware make installation clean and straightforward.

What's Included

• Invidia Gemini R400 cat-back exhaust
• Titanium Burnt quad exhaust tips
• New gaskets and installation hardware

About Invidia

Invidia is a Taiwanese performance exhaust manufacturer with a strong following in the Subaru, Mitsubishi, and Japanese sports car communities. Their catalog covers cat-back exhausts, downpipes, headers, manifolds, and full exhaust systems built around SUS304 stainless steel construction with CNC-machined flanges and direct OEM fitment. Invidia exhausts are among the most widely installed aftermarket systems on Subaru platforms globally — well-documented, well-supported, and proven across thousands of street and track builds. Subispeed carries the full Invidia lineup because their combination of quality construction, fitment accuracy, and range of tip and finish options makes them the exhaust brand we recommend to Subaru owners at nearly every power level.