4.6 mod question

[daveco69]

My father bought a 97 Cobra and he wants to add a couple minor mods. Cold Air Intake, new exhaust full headers and high flow cats and flowmasters. Will he need a computer program to take advantage of these add ons., Thanks David

[91svtcoupe]

For what its worth I put a JLT RAI intake on my 98 Cobra motor thats in my 89 Foxbody. No tune Required.....

[tvs50lx]

it should be ok, but I would put it on a dyno just to check the air/fuel ratio.

[daGOOSE]

imrc delete is also a good choice

[wsd91stang]

with the exhaust I would definitely get some dyno time

[Black01Bullitt]

I picked up 17hp and 20lbft from a dyno tune all I had was cai and LT's and x-pipe. My car was pretty rich without the tune.