Does anybody have any input regarding the Unorthodox Racing Underdrive Pulley's and the HKS Twin Power Ignition Booster?
Power improvement/Reliability/etc.? I hear mixed responses on these two mods. Please help
Thanks

 

UDP i hear will give some noticable gains. As for the HKS DONT BUY IT!!!! my boy put it on his 97 max and it did ABSOLUTLY NOTHING! It might actually do something if you had a Super, but with just naturally aspirated dont bother.
Anthony

 

UDP is noticable but only slightly. For the $ get an intake, Y-pipe, etc first.

It does take a bit away from the A/C in the summer too which is probably the big downside for my black car.

Seem's to help in lowend torque (nothing official to base it on though). With that mod, the CAI, and the RT Cat I could run 6.4-6.5 for 0-60. That was before putting on a Y-pipe.

 

Thanks for the response.
I already have the other mods, except nitrous or SC.
Running out of things to do for power....ehheheheh
I already have the UDP, so I'll be putting it on soon.
Then I'm going back to my 15's for awhile...hehehehh
Anybody have any other input regarding these mods.

What about stereo drag/alternator/and other accessories.
I heard from one person that the HKS did alot for his car, maybe he needed new plugs and added them at the same time....