i recently bought the litespec exhaust 70mm today and i'm planning of adding a testpipe or HFC. will the reflash be affected by the changes? like the AFR? do i need a retune for only this additional mods? thanks..

 

This is in the wrong forum topic

 

try here...

https://www.s2ki.com/forums/index.php?showforum=193

 

Moving to forced induction

 

IF you are running a re-flash you will thin the tune a bit which for me was a good thing. I would recommend getting a FlashPro (if you don't already), log it, and post and/or send it to a tuner. Jeff Evans and Elite do e-tunes and you place the af's where they should be for your S.

J

 

def log it. changing those parts could potentially cause the car to run lean. not def, but potentially.

 

If your using the tune from kraftwerks you'll probably pickup a decent amount of whp if you get retuned.