I have looked around for the hp increase on a S5 TII, but couldn't find any since the search button doesn't accept rb. I have heard claims on the rb increasing about 50 somthing hp on a S4 TII, but I wondered how much would it increase on a S5 TII

 

alot i have it on mine
had 3" downpipe and muffles 1st and a shitty CAT
then got the presilencer and went from 4pounds to 14 pounds of boost.
sounds really cool.
www.racingbeat.com

 

does that bolt right on to the stock turbo? it being a 3" downpipe and all?

 

yup sure does, you need a gasket too plus racing beats system isnt 3" its 3.15"