|
I would bet the intake gives 7-9 rwhp, the shorty headers give 6-8 rwhp, and the exhaust is 2-3 rwhp . Then a custom dyno tune will net you more than all of the above, I've seen it for years on all of the new GM cars, especially when you mod them, the performance upgrades generally detune the PCM which does not provide the real power gain from the performance parts installed, because the addiaional airflow causes timing to be pulled, and the AFR to richen up a bit losing power with your stock tune.
|