Underdrive pulley?

[road rage]

For those who have underdrive pulleys did you notice better gas mileage and have you had any problems as far as lights dimming.

 

[CManT1914]

No to both questions, gas mileage doesn't increase, and I don't have any problems with my lights dimming, even with my 1000 watt amp cranked up loud. I DID notice some extra hp.

 

[myponyrocks]

I'd have to agree no difference in MPH that I've noticed, no dimming

 

[01GT eibach]

No to both questions, gas mileage doesn't increase, and I don't have any problems with my lights dimming, even with my 1000 watt amp cranked up loud. I DID notice some extra hp.

Yeah ... me too.