Here we have a 2011 Subaru STi that was custom tuned by OnPoint Dyno with just a turboback exhaust and a 3-Port EBCS. With a stock STi making around 228WHP this car made a healthy 50WHP gain from the exhaust and tuning alone. This is great bang for your buck!
Event: Dyno Tune
Location: Touge Tuning, Mississauga Ontario
Ambient Temp:
Elevation: 249 ft.
Weather:
Car: 2011 Subaru WRX STi
Tuner: Sasha from OnPoint Dyno
Dyno Info: Dynapack
Transmission: 6-speed
Gear: 4th
Peak HP at RPM: 280 @ 5280RPM – SAE J1349 (2004) Corrected –
Peak Torque at RPM: 328 @ 3700RPM – SAE J1349 (2004) Corrected
Baseline HP/TQ for Stock 2010 STi on same dyno: 228WHP/240WTQ
Target Boost: 18PSI
Fuel: Petro 94
Mod List:
-COBB AccessPORT
-OnPoint Dyno Pro-Tune
-Catted Downpipe
-Cat-Back Exhaust
-3-Port EBCS
Dan
Have a 2011 wrx, stock. Really enjoyed your rundowns on the hp increases.
I like stock sound volume, but the downpipe is restrictive. Tuner told me get an intercooler, EBCS, access port, downpipe, and custom tune. Your tests all show numbers for a full catback system, so I’m curious what hp that adds over just the downpipe?
I am wanting a stage 2 daily driver, so not necessarily “over the top” hp numbers, with the advantage of all the power being lost to stock pipe and tuning.
Chris Richardson
The cat-back is worth around 10-20WHP in the test we did, obviously, this does require the downpipe to be installed.
Dan
Hey Chris,
I just received a good package deal from someone on both a Cobb downpipe, and a K&N Typhoon intake. My plan is to do a stage 2 setup, including a Grimmspeed intercooler and Cobb ebcs (and custom protune with Access Port.)
I’ve heard you say that intakes don’t do much until over stage 2, but is it worth installing at all? I hardly paid anything for it, and the sound is great when driving with it versus a stock airbox setup. Some people say an intake really helped them, but I’d rather ask a tuner, lol.
Thanks for your time
Chris Richardson
We usually see around 5-10HP with an intake after tuning.
Johnny
Do you require a Cobb acess port to tune the car ?
ChrisTouge
Yes we do only offer tuning through the COBB AccessPORT or ECUTEK systems for Suabru platforms.