I have a 2002 ford mustang V6, I already have a K&N cold air intake. What else is out there that will do the job.
A Diablo Tuner programmer costs about $400 and they claim it delivers an extra 15-20 hp over stock. You’d probably have to switch to premium fuel, but that much hp for $400 is pretty good. Otherwise, you can always go with a free flowing cat-back exhaust (and headers if you’ve got the $$) and keep using regular gas. OR you add all 3 for even more hp - depends on how much money you consider “cheap” I guess…
There are several web vendors around that specialize in V6 Mustang performance parts - I included 1 of them in my sources. There are certainly more than this - google “V6 Mustang performance” to find more.
http://www.v6mustangstuff.com/products.h…
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A really cheap way is to trade it in for a chevrolet camaro same year. Good luck.
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New plugs and wires if you have not replaced them in a while.
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Go to a ranch and get some horses, then put them under your hood.