Originally Posted by Andrew@ActiveAutowerke
Most mods do not require retuning.
hi, after getting a this tune i plan to add K&N+char delete. Do i need to re-tune AA afterwards?
how bout after adding 3stagemanafold parts to my 325i..do i need to re-tune?
kinda confused because the local shop in my area who's doing the install seems 50/50 in answering my question.
ty btw in new to community but had this car since 2008. post warranty now im here e90post to mod try to Mod for fun.
lastly what would be my final range in hp gains after my added mods mentioned above?
from my stock 325i N52 ( 215hp to ??? hp end result)