Ok, my friend has just bought a nice example of a vauxhall senator 3.0 24v (he is 40 by the way) and the exhaust keeps blowing and were sick of trying cheap repairs.
I told him he may as well get a powerflow exhaust system as a genuine vauxhall one would not be much cheaper as they arent readily available, and his exhaust system really is rusted and holy.
My question is with a car of this power, sinces hes got a much better exhaust system (2 cats removed and better gas flow) would it be worth following this up with a panel filter and chip to get an overall power increase or would it not be worth the money?
Its pretty fast now when it gets going and hes said well ive done the full exhaust so I might as well chip it, would it be worth it and what gains will be had?
cheers!