GrimmSpeed Uppipe WRX (2002-2014) STI (2004-2018) Universal Upgrading to a stronger bypass

Upgrading to a stronger bypass or blow-off valve on your Mazdaspeed3 can produce a more consistent power output and eliminate the chance of leaking boost at wide-open-throttle

Cars with an ECU tune that increases boost levels will enjoy this part as you will never have to worry about it leaking under boost

7- and 8-speed transmissions found in modern passenger cars

H&R Sway Bars are 100% made in Germany

1992 - 1995 Honda Civic Hatchback (VX)

GrimmSpeed Uppipe WRX (2002-2014) STI (2004-2018) Universal Upgrading to a stronger bypassThe GrimmSpeed catless uppipe is made of 304 SS (all of it; the flanges, flex section and tubing) and has super thick, 14 gauge pipe wall thickness, which is the most heavy duty pipe you will find for this kind of application. Other pipes use cheaper, thinner steel and are marketed as "super light weight," not GrimmSpeed's. Also, their one of a kind, Triple Layer Flex Joint is not located in the bend, which increases the life expectancy of the flex