I have a piper full system on my car, its a MK2 VTR with the cat in the mani.
If i swap the centre section with a supersprint race tube will i get any benefits?. The mani is a GMC 4-1 and the engine is tuned.
And how would that compare to a BTB GMC System.
If i swap the centre section with a supersprint race tube will i get any benefits?. The mani is a GMC 4-1 and the engine is tuned.
And how would that compare to a BTB GMC System.