Re: Backpressure issues with Magnaflows
Yah I agree with the above post. If you use 2.5" piping (which most aftermarket catback/converter back systems are) you may lose some torque...maybe a ft. lb. or so, but that's it. I don't think using two less restrictive mufflers will cause a decrease in hp.
12 Black GT500 SVT PP l VMP TVS l JLT123 l O/R X l 28x11.50Rx15 M/T Street R's l BMR Suspension l Recaros
03 Sonic Blue 3.8 / 17 Magnetic Fusion Sport 2.7 EB