I am sure that there are a few posts on this subject already but im wondering about the Hahn CAI. After install to se any results do you have to get the car tuned? or will you get results with out a tune and just the CAI install. how does the turbo sound once you install it? thanks for the help

 

prob won't see much without a tune, just a louder turbo and blow off vlave sound

you can def hear it sucking when the turbo spools up though

sounds good

 

i think you mean bypass valve

 

With a good tune and a Hahn intake you should see almost a 30 HP gain... (keep in mind not all is related to the intake, but around 15 HP will be)

 

if i get the intake and then get it tuned... will i have to get it re tuned once i get the stage one?

 

No. The "Stage 1" comes with a "tune".

So, you should be set. Unless they have a problem with your intake.....