aFe Takeda 3in to 2-1/2in Stainless Catback Exhaust w/ Carbon Fiber Tip - Subaru WRX / STi 2015-2021 Titanium If you have any problems

If you have any problems at all with the swap

Our thermostat begins to open 25

5i Limited 2001-2004 Subaru Outback Base 2002-2004 Subaru Outback H6 2004 Subaru Outback H6 35th Anniversary Edition 2004 Subaru Outback H6 VDC 2001-2004 Subaru Outback L

Sophistication Meets Durability: Not only does the carbon fiber construction exude sophistication

and from idle to ~2500 RPM the exhaust is the dominant sound with a low grumble

aFe Takeda 3in to 2-1/2in Stainless Catback Exhaust w/ Carbon Fiber Tip - Subaru WRX / STi 2015-2021 Titanium If you have any problemsPerformance Gains: This system produced gains of up to +12 HP and +15 lbs. x Ft. TQ., as measured on our in house dyno. 3 IN 2 1 2 IN 304 Stainless Steel Construction: This cat back exhaust system is constructed of 3 IN 2 1 2 IN mandrel bent brushed finished 304 stainless steel tubing for maximum strength and durability. Dual 4 1 2 IN Diameter Carbon Fiber Exhaust Tips: Finishing off this exhaust system are dual 4 1 2 IN diameter carbon fiber 304