That's the question. Best bang for buck?

 

UP's? If your talking about under drive pullies then go for a email tune from Doug at Bamachips. I have the 93 octane race tune and it is amazing! My friend ran that tune for a while until he got nitrous and a dyno tune. The tuner said that Doug's tune was almost perfect (only able to get a few more hp/throttle responce)

 

how much for the tune?

 

Its $50 bucks right now...but I would suggest you sell that K&N intake buy a JLT (i'm assuming you have an Xcal 3 tuner?) cause my friends Intake only mustang made 300HP and 320tq to the ground! Tuneless intakes dont seem to put as much pwr down.

When I ordered mine it took less than an hr to recieve the tune in my email.

 

Tune is the way to go.. UDP's will give you very little performance gain, the tune will be night and day difference. Bama for automatics or Brenspeed for manual trans. Brenspeed will send you a new tune for any component you purchase from them in the future that requires it. I don't know about Bama.

 

I have the SCT SF PCM Tuner. If that helps at all. Is it usual for the failsafe engine mode to pop on often? Cause ever since I plugge my tuner in it does. Thanks for the help btw. I'm gonna buy something today so more help is appreciated

 

Tune > UDP's. Bama tune updates are free no matter where you buy the parts from.

 

No contest... A good CAI & tune combo will net you about 15-25 RWHP for about $600 (assuming you don't have a compatible tuner and you need a better CAI) and will provide you multiple tunes. The UDP's might gain you 3-5 RWHP if I recall.