Invidia Full Titanium Catback Exhaust - 2015-2021 Subaru WRX / STI

Full Titanium — The Lightweight Build Option for the VA WRX/STI

The Invidia Full Titanium Cat-Back Exhaust for the 2015-2021 Subaru WRX / STI is the premium build-quality option in the Invidia lineup — titanium construction throughout the entire system, not just at the tip. Titanium is significantly lighter than stainless steel at equivalent wall thicknesses, making this the correct exhaust for builds where weight reduction is a genuine performance priority. The exhaust note from a titanium system is sharper and more resonant than stainless — titanium rings at a higher frequency and produces a more distinctive character.

Titanium Throughout — Not Just the Tip

The distinction between the Full Titanium and a stainless system with titanium tips is significant — the entire pipe body, collector, and all connecting sections are titanium, not just the visible tip. The weight savings over a comparable stainless system are meaningful for a performance build, and the corrosion resistance of titanium exceeds stainless at the elevated temperatures the exhaust system operates at. CNC-machined flanges and OEM hanger positions retain the same bolt-in installation as the standard stainless cat-back.

Bolt-In at OEM Hanger Locations, Premium Construction

The Full Titanium system connects at the OEM downpipe flange and hanger positions on the VA WRX/STI — same installation as a stainless cat-back, different material throughout. New gaskets and hardware are included. The weight and sound character differences are immediately noticeable compared to a stainless system.

Key Features

• Platform: 2015-2021 Subaru WRX / STI
• SUS304 stainless steel construction
• 3-inch mandrel-bent piping — full diameter maintained at every bend
• Single exit — Titanium tip
• 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 Full Titanium is the correct exhaust if weight reduction is a real build goal for the VA WRX/STI — not just a marketing preference but an actual priority. The sound character is different from stainless, not just louder — titanium produces a higher-pitched, more resonant tone that enthusiasts who have heard it either love or prefer stainless. It's worth listening to a sound clip of the titanium system before ordering if sound character matters to the build.

What's Included

• Invidia Full Titanium cat-back exhaust
• Titanium 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.