I have a magnaflow 2.5 exhaust on and I want to put a 3" Hahn DP and shorty header but I don't think it would fit without an adapter or do I just swap the 2.5 with a 3" Hahn exhaust or a Borla?

 

get the zzp header and get a 3in down pipe setup for the 2.5 cb

 

That's gonna fit together alright?

 

Yes.

 

boom

 

I'll order the parts, install and enjoy. Hopefully this will work: Hahn shorty header, 3" Hahn DP, Magnaflow Exhaust

 

The Hahn downpipe is actually made by Random Technology. I ran that downpipe.

It starts out as a 3" pipe, but after the converter it is 2.75". It does not have the proper 2.5" step down to bolt to a 2.5" catback. That's why MrB suggested a ZZP downpipe.

 

Yeah I'm looking into the zzp dp and header instead of the Hahn ones.

 

Ok. Just making sure, because the post above my last post has you mentioning the Hahn downpipe.

 

Even if its just a 2.5 zzp dp and header, it's gonna still be better than the stock OEM one right?

 

yup

 

Yes. Def.