2008-2010 Subaru Impreza STi Turbo-back (Down-pipe and Cat-back) Exhaust Dyno Test





Tsudo 08-10 Subaru STI GR chassis turboback (08-10 STI quad-tip catback and 08-10 WRX/STI divorce wastegate downpipe) dyno test. Great gains over OEM equipment.

Test vehicle had only Crawford stage 1 reflash for both runs. Otherwise everything else was 100% stock for the base run (Stock intake, TMIC, downpipe, catback, etc).

+28.7whp / +37.0wtq gain with BOLT-ON Tsudo turoback exhaust and stock airbox and filter

NO TUNING, NO BOOST CONTROLLER, NO ECU FLASHING, AND NO GIMMICKS TO IMPROVE THE NUMBERS LIKE OTHER COMPANIES. 100% BOLT-ON TESTING

Dyno sheet attached. All numbers SAE corrected, 3 runs each, 6 runs total.

Run on Dynapack 4WD dyno at DRIFTSPEED in Los Alamitos, CA.

Dyno Video:

Base-line run with stock engine: 214.2whp / 247.1wtq

Tsudo turbo-back exhaust ONLY (no other modifications): 242.9whp (+28.7whp) / 284.1wtq (+37.0wtq)

Sound Clip:

DRIFTSPEED.COM

DRIFTSPEED.COM

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