Just installed a set of Steeda UDP's and it was a pain in the A$$. For some reason we had some trouble getting the crank pulley fully seated but once we did everything was fine. The car pulls harder and runs a little smoother. I havent used my A/C yet so i dont know if they will effect it that bad.

 

For future reference: Tap it with a light hammer and it should just about fully seat.
Trying to seat it with just the bolt will usually pull the threads out of the crank, DOH!

Mike

 

You wont have any problem with the A/C.
But if you have any high ower audio gear in there,
you will notice dimming headlights and such at stoplights.

 

Let us know how the A/C performs. Looks like you are in Florida, I am in Houston... Similar Summer heat. I want to do this upgradetoo, but I'm concerned about the A/C output on a 100* humid day.

 

The A/C is a demand on/off system withthe compressor clutchbeing off more than on.
With UDPs, it will just be more on than off, thats all. You will not have it be on
100% of the time even with UDPs and Houston's 100% humidity.

 

Then it sounds like I have a new weekend project.

 

No problems with the A\C operation here in Central Florida. You should be OK

Mike

 

Thats what i had to do,get a soft mallet and tap it the rest of the way in.

 

I live near Daytona Beach in Florida and have ZERO problems with the UDPs. The A/C still works great as well as all other accessories. I gained at least 6 rwhp from the UDPs according to the dyno since it was hotter when I did the after dyno.

 

I had zero problems with my UDP's in the summer.....when I had them.