Originally Posted by NeverEnough
UMMM, yeah...
I've heard and read claims on here and on MB World that the Renntech kit puts it up to right around 400 HP at the crank, so the 45 you claim with the Renntech kit makes sense. After reading all this, I'm going to save up for the Renntech kit. 20 WHP for ~ $1,400-$1,500 or 45 WHP for $3,000...
The RENNtech kit is claims 45 BHP.
The ASP Pulley is the same size as the RENNtech pulley but minus 2 pulley's in the kit. The numbers of 20 hp increase is rwhp.
I believe that if the individual only received a 20 rwhp increase there is either an issue with his ECU programming or with his IC pump.
If you compared the HP generated by the RENNtech Pulleys & the ASP Pulleys the difference would be within the margin of error on the dyno.