wots your opinions on the mantzel power caps and the boost valves ? are they worth fitting ? i know they wont give much increase in power but will it make the car any quicker ?????? its for the 20xe !
powercaps make a wicked noise but there are NO clear cut RR results to say whether they improve anything.
I got 7bhp from an FSE but my car WAS running lean in the first place... so if you do buy one it needs to be set up on a RR at the same time.
cheers,might invest in one !
my calibra just doesnt seem to pick up as quick as my astra !