Which Underdrive pulley do you like?
SLP has used the whole " throwing belts" as a marketing gimmick. You shouldn't have any problem with belts on any of the pullies. I was going to get the SLP, after I did a "search" 
, I got the ASP and it's worth every penny! 
, I got the ASP and it's worth every penny! 
Everyone loves their ASPs. I hear the SLP is the heaviest UD pulley on the market. It's like a stock pulley but UD. You only get half the benefit. No weight benefit.
I'm going ASP for sure.
I'm going ASP for sure.
i asked this a while back ASP is most popular bcuz of the praise from the guru's. SLP is unfavored for the price. march is middle man. its probably not gonna matter as long as its SFI apporved
ASP proved to be a true performer for me. Had a before/after dyno (just worked out to be two good dyno days deals) and track time. Gained a solid 10hp/10ft.lbs and a 10th / 1 mph in the 1320. Check out the dyno section. No charging issues at all. Alternator still reads the same before and after ...13.2V. Very worthwhile mod
