Alright guys probably doing my last major upgrade or up grades if money permits.........should I do a plenium and throttle body upgrade and x-pipe or headers and x pipe or I dunno give me some ideas. Looking to spend $400-$500 maybe all I know is x-pipe is the minimum.

 

Headers/x pipe. TB and plenum isnt worth the money.

 

Thats what I thought plus I might just port out the stock plenium for now. Do headers and x-pipe kill my gas milage or only depends if you have a lead foot? Oh yeah what about underdrive pullies might just throw those in while i'm at it.

 

No, you might even get better mileage, unless its running pig rich, but keep your foot out, and youll be fine. Pulleys are a proven mod, you might not feel it, but they do show some gains.

 

If it is running rich I can take care of that with my tuner. What kind of power gains are we looking at with the headers and x-pipe
. I know that since my car is a auto it's gonna have a little bit of power robbed.

 

Full exhaust is worth every penny!

 

SLP catted x-pipe with race pipes, and id pick a throttlebody/plenum combo over underdrive pullies.