Hey all,

Sorry for the noob question but bare with me.

I currently have a UR mini muff test pipe and a Magnaflow CBE (it necks down to 2.5 in the rear). I purchased a ETS test pipe and want to change the exhaust out to a full 3 inch exhaust. Will I need a retune for this? I am pretty sure I don't need one but just wanted to check.

Thanks

 

I would to get the most out of your setup. It'll throw the tune off a little bit

 

is it, it is going to throw it off and your engine is going to blow or you will lose some power?

 

It's not gonna blow up

 

if the test pipes are the same diameter then you will not need a tune. it will run better if get a new tune becuz regular test pipe has a slightly better flow than the mini muff one.
just watch out your AFR.