Got the UDP on. Like it.
It is just as noticable as the Bama tuner mostly because of how much easier the engine revs. Gets into the powerband quicker which is good. Is it worth almost $300? You decide. It was for me since I have been doing this modding thing for years and anything that can net 10-12 whp is worth $300.
It is easy to put on, but that crank bolt is a ***** (TIGHT). I made a tool to hold the damper and thus the crank out of a piece of 1/4" flat steel plate and a handle from 1" pipe. Welded it together made the holes for the bolts that will be used with the puller and a slotted hole for the crank bolt socket. Worked great. I didn't want to pull the radiator so I could use an impact. Make sure to loosen the crank bolt almost all the way out to let your puller put pressure on it. Once you have pulled up to the bolt, you can loosen it the rest of the way and pull off the damper/pulley by hand. I actually took the factory bolt out and used the longer one provided by ASP to push against.
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