Cobra Sport Exhausts are testing their latest Subaru STi exhaust system at Scooby Clinic's (calibrated) rolling road machine. The car only made 286BHP on the first run with its standard exhaust (It should have made the 300 BHP figure!!) so we realised we were working with an under powered car initially.
It made a 6BHP gain from standard O/E exhaust to 3" bore cat-back system, and 4 BHP gain from the 2.5" cat-back system.
We can't wait to put the de-cats on and re-test! |
