How much bhp?

Sorry for this stupid question ,but Y really wont to now how much bhp will give me a 18 timing-2.25catback(mandrel bent)-cai -HS header (gen 3-4)-ur pullies (2 set)in a 10.1 motor? somethig 20-+ hp over a stock enginne.:p

Probably anywhere from 135whp to 145whp depending on your engine's state of tune. I ran 135 with POP charger, custom exhaust and UR pullies.

Here's a good page on SE-R.net with a nice graph of dyno runs to give you an idea.

http://www.se-r.net/car_info/dyno/dyno_day_1999.html

Sorry whp=wheel horse power

I only ever talk about wheel horse power because that's what really matters. Adding the 15% to get crank hp is really just an estimate.