opinions on a couple products please?

Oh one more thing.
-K & n air filter vs Stainless steel air filter.
as shown http://cgi.ebay.com/ebaymotors/aw-cgi/ebayISAPI.dll?ViewItem&item=595810137&r=0&t=0

i heard cross drilled rotors break..

don't buy the centerforce dual friction

My Chance

Oh boy finally my chance to tell the Centerforce story: I had a Mk111 making 500+RW and Centerforce told me their clutch would take all of it. One day out and it slipped!!:madf: They would not warranty and I stupidly bought another one after hearing their bullshit story:bsflag: Four days out and it slipped.
I was breaking both clutches in at 10 psi (360Rw) gently and they slipped.
They didn't stand behind either clutch Finally went an OS Giken and it lasted two years and dozens of 11 sec passes.
I put a stage one RPS in my MK4 and made many 550+rw passes in the 11s pulled it out to put a 700+rw disc in and was surprized to see virtually no wear at all. Car dyno'd at 631Rw with the stage 1 held like a champ. Centerforce lies and RPS:bthumb: