how much to expect

**IrishNation24** · 10-03-2009

for those of you who have done this setup of mods, how much of a hp/tq increase should i expect once they are installed.

intake
prj wires.
ngk tr6 plugs
180* t-stat
headers
cat back exhaust
ported throttle body
ported supercharger case
tuned pcm
3.4" pulley

also, is there any point to installing a tb heat sheild. and how hard is it to install and replace supercharger case.

**QwikGT** · 10-03-2009

the biggest gains i felt were the rockers, northstar tb, going from a 3.4 to a 3.25 and a great tune. these cars are pigs without being tuned correctly. the cat back insint doing anything for you, you will get sick of the drone and put stock mufflers back on....believe me i did it. i guess a ported blower works, the heads on these cars are the restriction point.

**TheOtherNick** · 10-03-2009

port your own throttle body. All it does is give a little better throttle response.

**Bio248** · 10-03-2009

none of the mods really make a HUGE difference until you drop pullies with it. a cammed car with a 3.8 pulley on it feels like a beast, but it will run like hell once you put some more boost on it.

**IrishNation24** · 10-03-2009

yes, i know other mods make better power, but i am asking specifically for poeple who have done just those mods, how much has it got them. other the the headers, which cost more the the rest of the parts combined, i am tryin to keep it as low as possible, i dont really have funds or the skill/talent/knowledge to do anything else.