how come you can by a four branch for an na car for 200 quid but a tubular for an rst is 850, someone please explain coz they look the bloody same thing to me just different shapes!

has anyone hit the flow limits of the standard?

and whats the bhp gains coz if its only 10bhp then jamsport can keep the 10 bhp and ill keep my 850 quid, which by the way is two weeks work