I also have had problems with RPMoutlet. i bought UDPs from them MotoBlue and they sent me 2 so i sent one back and hey charged me for shippin and they gave me back my money in credit. i hate them
i do not recommed them either
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2004 3.9L (Auto) V6 Mustang BBK CIA UDP Shorty headers X-pipe Flowmaster take offs (American Thunder)
35% Tint Rear Bumper Decal "Mustang" Fill Ins Side "40th Year anniversary" Decals Shorty Antenna
I’m new to the Mustang thing, just got my 03 Mustang yesterday. I know with my old ZX2 to complement the UDP, I got an ODP for my alternator wouldn’t something like this compensate for the additional charging loss from the 42% UDP? If this is the case where would I be able to find both and roughly what would the cost be?
im getting some UDP'S from mustangs unlimited i was wondering how hard are they to install on a 98 v6 3.8L. also what is a harmonic balance puller? do i need one to put my UDP on?
A harmonic balancer puller is a little metal tool that you can rent from most auto parts stores that bolts onto the harmonic balancer [more or less underdrive pulley] that removes the balancer more easily. BTW, why hasn't RPM outlet written on here to back up their business. I mean, most vendors supported here write to ensure quality, but I'm surprised RPM outlet hasn't tried to redeem themselves.
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2004 V6 40th with: Mac L.T Headers Pypes cat X Dual SCT tuner 3.73 gears Trac Loc Mac CAI ASP UP Bullitt chrome DD 18x9 18x10 Coming up: ZEX NOS KIT
I’m new to the Mustang thing, just got my 03 Mustang yesterday. I know with my old ZX2 to complement the UDP, I got an ODP for my alternator wouldn’t something like this compensate for the additional charging loss from the 42% UDP? If this is the case where would I be able to find both and roughly what would the cost be?
Wouldn't it be better to just go with the 25% because you would just be changing less parts because putting a bigger one on the alternator would just take back what you stole from the harmonic dampener.
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97 cobra :roush exhaust, 315/35/17s on back, throttle body spacer, and bbk under drive pulleys. coming soon 3.73s
does anyone have total install directions, i want to see if i can do it myself. BTW, steeda has a set also, they look pretty good and steeda is a good brand.
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98 auto, dual flowmaster super 40's, blacked out headlights, bumper inserts, mac cai, bridgestone potenza's
does anyone have total install directions, i want to see if i can do it myself. BTW, steeda has a set also, they look pretty good and steeda is a good brand.
Ok so i'm new to the forum and am stuck with my 98' 3.8L (Wanted to get a Fox Body 5.0) it already has a full dual flowmaster exhaust system with 3-1/2" magnaflow tips. I'm now looking for some mods that i can do to my mustang to make it faster, as it already sounds really nice. Also, will the motoblue 42% fit on my 98'. everyone here seems to have newer v6's (99 and up), and i was wondering if there was any difference in the installation and performance? Also, does anyone know the new length of drivetrain belt that i'll need after installation?
so how do underdrive pulleys actually help your car does it get rid of something connect to the engine via drive pulley or does it just make all of the stuff more efficient for the pulley system
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magnaflow true dual exhaust, CAI, demon coil, livewires, xcal3 flashtuner, steeda short shifter, limo tint, 20" black boss wheels, foglight kit, mach 1 chin spoiler
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RE: The One And Only Under Drive Pulley Thread - 
