I have exhaust, air filter, and test pipes. Is there anything that can/should be adjusted/tuned/reset if I only have these mods? It seems that the car has got slower.

 

Most likely your car has lost some low end torque (that is what your butt dyno is telling you) from opening up the choke points and increasing your air flow... You probably gained some top end horsepower though...

You will feel the loss in TQ more than a gain in HP and you will be faster street light racing with the TQ... I know some people w/ test pipes felt the loss of TQ and when they put there stock cats back on the regained it...

Me, I use Kinetix Resonated Test Pipes and I really like them w/ the Vortech.

 

A retune with a UTEC will bring back some of that lost power, and you'll up with 10-13whp more at the peak. Your AF ratio likely leaned up a little bit too much.

 

Thanks guys, I'll look do a search for the "UTEC".

 

after messing with and tuning a few different systems for our cars, i really like the UTEC, do a search and check out all of the features...

 

the manual can be downloaded from www.turboxs.com

 

I searched but didn't find if this is something I can install and take out easily if I want to get rid of the car (to put back to stock) or if it's the best thing if I keep car and go F/I?

 

Yup, the UTEC can be uninstalled very quickly, without any signs that it was previously installed.