I've currently got a 2" straight thru system on my car, but we had problems fitting the downpipe to my system. Theres a tempory job on it at the mo, but im going back to powerflow as the old system is rusting and i want it replace with a stainless steel system.
The current system is a 2" straight thru going into x2 44mm puipes (was to retain back pressure). AS im gonna get teh system re-done, what size bore should i go to?
Stay at 2"
Or 2 1/2" bore?