<font size="2" face="Verdana, Arial">1)Under drive pulley is a crank pulley that replaces your heavy ass stock crank pulley with a light weight one to free up horsepower due to the quicker spin rate..you can expect about 4HP to the front wheels with this mod..Originally posted by blackbeard700:
Wow i wasn't expecting so much nice advice!!!But i have a few, if not a lot of questions on the advice given. Mostly its the terminoligy i don't understand.
#1: what does an under drive pulley and how much gain could expect?
#2: Whats an UDP Kit from FC, and how much hp gain could i expect ocne again?
#3: whats a flex?
#4: for the cat-back i'm looking for somethign LEGAL which means i want to keep a Cat on the car, but i want something with 0 or very little noise. Which do you recommend?
#5: finaly is the header sold on www.focussport.com any good?
Thank u so much once again for all the help guys!!