Quote:
Originally Posted by ahtim
thanks to all of you guys!!!
i already know that problem, with the no backpressure, the torque will be reduce.
but does anyone think this problem can be slove by making the middle section smaller or thinner?
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Back pressure is likely not the issue, although it could have an impact on the factory valve timing settings (i.e. cause over scavenging).
Exhaust gas speed is more likely the issue - the stock exhaust system has strange narrowings in strange places which I think are there on purpose to facilitate high exhaust gas speeds.
I'm hoping a primary cat delete is the right modification to get optimal exhaust flow without affecting low end torque...