hello guys how u doin?? hope u r fine

im new in this things NOOB i have a question that i need help from u guys
i am going to install FI exhaust on my G so the question is should i tune the car after i install the exhaust or just fix and go?

sorry i know my english sucks

thanks for your help

 

I have the FI exhaust.
I drove around for about a year before going with a tune. There is no need to tune your car with the exhaust, if that is what you are asking.
I do suggest resetting the ECU after the installation though. It took about 150 miles for my car to settle into the new exhaust. After that, things were perfect.

 

if i didnt tune the car will the exhaust give me the same hp if i tuned it? and i if installed
headers should i tune ?? i know i ask lots of Q its just that im new and need to ask ppl that now abt this things xD

thnxx for ur ans man

 

Welcome to the forums!

Fast Intentions took before and after dyno measurements on my car. The performance gains will be there once the exhaust is installed. The ECU did not require any noticeable time to adjust.

The exhaust was removed and replaced with my car ON THE DYNO and we never drove around before taking the "after" measurements. Three pulls each (before and after) averaged together gave us the 9WHp gain.

My car did not have HFC when the cat backs were installed and it was never tuned until it got to GTM. GTM's baseline measuremets were very close to what FI measured after the exhaust was installed so the original measurements have been verified.

As AV said eariler ... no tune required.