I wanna mod my S4 but I'm mods are so exspencive for these things. This lightweight pulley in pretty much all I can afford at this time.Anyone have this??? Is it worth while??? what kind of gains does it give.....any other negative effects???? Thanks guys

 

dont bother wasting your time with that right now. save up some cash and start with the bi-pipe, throttle body boot, diverters, f-hose, and other preventative maintenance stuff. once this is complete, go for a chip and fuel pressure regulator.

 

I agree with Coop.

Do you know how much work it is to put that pulley on?

The bumper needs to come off, the radiator needs to come out, etc...

It will cost 2x the amount of the pulley to get it installed.

Save up for a chip, it will be the biggest gain per dollar out there.

 

is a FPR necessary when adding a chip? at what psi should a FPR be installed?

 

Nope, and unless it comes in a K04 kit, not needed.

 

What is FPR?

 

Fuel Pressure Regulator... and yes definitely not needed