Originally Posted by dgcutsha
His G37S is an 08.
Any ideas on why some say we lose power from freeing up the exhaust on the SRT-6's? I feel more of a pull now when hitting passing gear since the exhaust upgrade.
Input?
Someone can correct me if I'm wrong, but the main gist of the losing torque in the lowend with exhaust modifications (unless you go all the way up and start at the headers) is related to the loss of backpressure.
If you start at the headers and make your changes starting there, that is a different story. The extra pipe and close to symmetrical length in aftermarket headers would help...but there just isn't anything on the market. Those would have to be one off headers.
There are only a couple of guys here that have that done, the only one I can think of currently is Colin (trizombie)...but I know there are a couple others.