gspfunk

Full exhaust will get you 15-25 rwhp over the stock setup, but gears should always be the first mod==best bang for the buck, hands down.

Pull the air silencer, K&N panel filter, bump the timing to 14-16* (run 91+ octane!),new plugs/wires, cap/rotor, oil and filter.

You can get parts really cheap, but you get what you pay for a lot of the time. BBK makes the best "cheap" headers that are still good quality...anything else is a gamble.

Buy a used O/R H or X and catback from someone on the forums or locally to save some cash.

7upedition

i thought KB required a gt40 lower intake?

gspfunk

Even if you could use it on the stock lower, it needs to be ported. The stock lower doesn't flow as well as the upper does.

kennebell92conv

on my stang i have the 2.2 and the stock lower intake

7upedition

do you still have the stock heads as well?

88blackgt

you guys are retarded. the best bolt on for a 5.0 is obviously a pair of "4948cc" emblems on the side. Standard is out, metric is in.

kennebell92conv

no i have gt 40 y303 heads