We take a look at how much faster a simple downpipe and tune can make the Subaru WRX. We start out with a baseline of 5.1 seconds from 0-60. Steve Pulzone tuned the car, his facebook page is here: / pullzontuning We used a Catless CNT downpipe, a Grimmspeed adapter and some heat tape. Total time to replace the exhaust system was only about 2 hours with a lot of hassle on some of the very tight Subaru bolts when removing the turbo heat shield and factory pipe. Steve then used Romraider to flash the ECM with new maps to increase boost and tune the maps. Coming up on future episodes: Grassroots action, drifting, rallycross and autocross! like our facebook page here: / racefriv