Exhaust or Headers?
#18
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Yeah, the lightened pulleys make a big diff, imo. The stock ones are straight iron where the URs are nice and light, depending on your transmission 6TM or 5AT you'll notice quicker downshifts or upshifts, and a little bit better throttle response with the lighter weight. FYI, UR is stating 8 to 12 HP gain, but not sure if its rwhp or not. I know with my 2 upgrades now I can peel around corners too easy.
I went lightened, if you go Underdrive you might have issues with water pump or alternator, or AC if you still use it, plus a new belt. Feel free to correct me if I'm wrong. Weight loss of approx 8 to 10 I'd say, the biggest benefit being your crank pulley
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I went lightened, if you go Underdrive you might have issues with water pump or alternator, or AC if you still use it, plus a new belt. Feel free to correct me if I'm wrong. Weight loss of approx 8 to 10 I'd say, the biggest benefit being your crank pulley
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![](http://a612.ac-images.myspacecdn.com/images01/83/l_8f5383c1f4b8a6888804fe54bfac9cf3.jpg)
![](http://a435.ac-images.myspacecdn.com/images01/70/l_4e61e309a1baaec24f444fc15427605a.jpg)
Sorry for large images
#23
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Originally Posted by c.breeze_gt
i heard that the pulleys can screw up ur a/c...
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#24
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icic...well, as im looking on everythingg35.com, i see that there is the Unorthodox Racing Ultra SS Pulley set and the Unorthodox Racing Underdrive crank pulley. so i should not get the underdrive crank pulley because it will underdrive all my electrical stuff ex. ac, water pump, power steering? and instead get the ultra ss pulley set? i also found this on Unorthodox Racing's website: Pulley Set: Stock Diameter (Ultra SSc).
#25
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Originally Posted by c.breeze_gt
icic...well, as im looking on everythingg35.com, i see that there is the Unorthodox Racing Ultra SS Pulley set and the Unorthodox Racing Underdrive crank pulley. so i should not get the underdrive crank pulley because it will underdrive all my electrical stuff ex. ac, water pump, power steering? and instead get the ultra ss pulley set? i also found this on Unorthodox Racing's website: Pulley Set: Stock Diameter (Ultra SSc).
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#26
Originally Posted by barrettbenson
What about Pulleys? Underdrive or Just Lightened? And does it make that much difference?
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