As of now I have a K&N drop in, UR AXEL back (not Cat back) and Injen Upper IC pipe (one that just replaces factory fabric pipe). Would these 3 parts require a tune? I hear no knock and I don't think these 3 parts would lean it to the point of requiring a tune right away. I know in the future I will get one and I know the danger of incorrect AF ratio's. However don't have the cash right now to get a tune done. Any thoughts on this would be great.

 

I would say no, you should be good to go. Tune is mainly required for SRI/CAI or boostpill.

 

Yes, no tune required. But to get the most out of those mods, def tune.

 

Yea Im no stranger to tunning just want to be sure not to damage my engine. This is my first Import as well as turbo and not sure how these respond to mods. I was always a Mustang Guy. Still am at heart I know my Mustang came running ping rich from the factory so I wasnt too worried about leaning out the AF too much before I could get in for a tune. Thanks for all the info guys.