Underdrive Pully

[ChrisYellowV6]

I have a 2003 V6 yellow vert. I just found out yesterday what underdrive pully's ARE, and I WANT SOME!!! I checked ebay, they only have some for 4.8L, and 5.0's. Does anybody know where I can find some for my 3.8L? THANKS! Also, does THIS void the warranty? or just the warranty on the alternator, water pump, etc... It seems I would be doing the water pump, along with some other pieces and parts, a favor...by not running them as hard.

 

[01White5spd]

ASP makes the pulleys for 99+ 3.8L mustangs. You can get them at www.rpmoutlet.com Your gonna also need a new belt to go with it and I think they sell the belt too.

 

[StrlngSlvrStang]

Mine are STEEDAs and I love 'em. And, 01White5spd is right too. You will need a new belt with the new pulley.

 

[Lsredy2kstang]

Well everyone just remember that ASP is really they only one to sell them for the 3.8L. So with that said, ASP makes them for Steeda. They just repackage them and sell them as their own.

Yes, you will need a new belt, but just ask for George at RPM outlet and what size belt you need and go get a gatorbelt at Autozone cheaper!

 

[mustang2003]

anyone know if they void warranty though?

 

[brady06]

how much power increase will a pulley get you?

 

[Lsredy2kstang]

yes, the dealer will try everything to void the warranty, but he has to prove that is what caused the failure.

I gained about 10 hp and tq with the addition of the pulley