I'm going with the UICP and Ram Air Intake and Tune.

what kind of gains in the 1/4 mile will I see if I add an aftermarket Exhaust over just the mods stated above?

 

First you would have to get the exhaust and then get it tuned... but you might have already known that. What type of exhaust? CB or TBE? All brands are a little different... I just saw Perrin advertise their exhaust over their stage 1 tune is 15-20 whp... so I would guess other ones will give you that or maybe 10 more at the most... could be wrong there. You are just as well off to save your money and get a drop-in filter as the Intakes don't really seem to yield much gain at all until you are getting to the 400-450 and over hp mark. I would say low to mid 12's though I am no expert by any means.

 

thanks for the input so if I get the exhaust prob shave another .10 / sec for the 1/4 mile

 

I'd like to say yes, but I don't know enough about the exhausts to be able to say for sure.. I do remember numbers well, so I know what SOME people have done with them, but the driver is more important than the mods. If you are good with the launch etc. then the time I had posted before should be close... let me know if you go with it if I was close.

* also keep in mind the tune can make a world of difference depending on if it's an off the shelf map or a custom one and if so, who that tuner is *