Originally Posted by msheredy
The guy with the SLK32 who is having the headers built by floored fab should be dynoing the system shortly. I mentioned this before in another post that his car is pullied & tuned so the numbers aren't going to be from a stock car. Also the shop is fabricating a completely new exhaust for the car w/low cell count catalytic converters. We should be able to rely on a percentage gain though I would think?
we won't be able to rely on percentage gains, because his pullied supercharger creates an even bigger problems in the exiting of the exhaust gasses... so the upgrade will be much more noticeable to someone who is already running higher boost than to someone running stock, but why even do this upgrade before doing the pullies and ecu as regardless the matter the pullies and ecu will give a greater performance increase...