I'm considering installing a pair of JBA Shorty headers. I was wondering if any of you have had any experience with them and what sort of gains in rwhp/torque should I expect. Also I am going to put a UPR X pipe behind 'em. Thanks for the info.
I can't really tell you want kind of gains they will give you even though I have a set. But what I can tell you is if you plan on messing with them more then once, have studs welded on them!!!! I have them and I swap between o/r X and my stock h for emissions and having the studs welded makes it 200% easier then messing with nuts and bolts.
I have the same exaust setup w/flowmasters. Being N/A I noticed a lot more power from the X pipe than I did with the headers. Together the power and the sound is real awesome though.
i also have the jba shorties with a mac h pipe and flows. i did the jba's first with a stock h pipe and noticed a big difference. the current setup is loud and sounds great