I did a search and did not find anything for this. I had my car custom tuned by Al in Utah. Has full 3 inch exhaust and a K&N drop in filter, that is it. I want to add Lower and Upper intercooler piping. Will I need a retune.

 

no, ull be fine wait to u do like more things like cams, then get retuned

 

ya wait until you do some heavier mods. you said you have full 3''. if that includes an o2 housing, great, if not pick up on of those off ebay or something, along with an mbc or boost control solenoid and then get it tuned. may a set of injectors and fuel pump depending on your plans.