Originally Posted by darwintheory

On both car everything from idle, mpgs, throttle response etc was improved. ive heard more neg thing about them than pos on other cars, maybe its dif for the tc2?

Op asked for opinions those are mine. Go with pulleys if u like its ur car, but i always stay away from them[/QUOTE Pretty sure that's one of the purposes of a pulley is to improve throttle response since your moving something much lighter your wasting less power thus improveing mpg so everything you've "heard " about is not so accurate so like I said there's a tread just on pulleys for our cars proving that on modern cars like ours a light weight pulley if a great mod with lil to no side affects

Originally Posted by darwintheory

Either way he asked for go -fast -mods not free- horsepower -up mods ... Go fast mods would include light weight pulley + wheels + flywheel & aero body parts & light weight materials like fiber glass or carbon fiber .... So called horsepower adder mods would be h/i/e which don't add hp they free up wasted or lost hp ... The only power mod you can do to a car is going force induced
& a tune would only be worth it if you had a fully bolt on n/a or f/i car running at stock tune

Originally Posted by fly_low

Yup i understand all that but like i said, thats ur opinion, what i wrote was mine. No time search for indep dynos #'s right now, maybe ill do that later.