My lt1 was recently totalled by an explorer so i went and bought a 99' T/A i threw straight pipes from the cat back and a k&n in the first day i bought it, and now i was wondering what are all the free mods for the ls1's. Thanks for any replies.

 

http://www.installuniversity.com

 

 

port and polish your TB
TB bypass
EGR cut-off
free ram air ( air box cut-out )

so what are the details on your ride...miles, m6-a4?, etc....

 

I was trying to figure that out as well.....

 

Hey guys not being stupid just saying i dont have a muffler, its just "straight pipes" from the cat all the way back into 3" chrome tips

 

I would have gave you my K&N if I saw this a week ago. That would have been a free mod but I already gave it away. I went back to FRAM air filter.

 

I wouldn't port your TB at this point.

 

bump stop