I have the slp and I hate it. It is extreamly heavy. It is made out of metal. If you look at the pic.of it. It looks really cool with the 3 filters on the end, it does increase the air flow b/c the car makes that hard sucking sound now. But, I just can't get over how damn heavy it is. I dont think k&n makes the whole cold air induction for a c4., and I dont know about the votexwhich one is bettter ?
1-Corvette Vortex Rammer Cold Air System, BPP, With Black Cover, 1990-1996 in Eckler's.com Item# 39536
2-SLP Performance Parts Cold Air Induction Packages
in summitracing.com part # SLE-21028
3- K&N cold air rammer
:agree: well said JoeIn my own testing over the years, both on the Dyno and dragstrip.....I've yet to see a cold air induction system or rammer type for the C4 corvette that yields a true advantage over just running a K&N filter with the cut lid mod, and replacing the lousy acordian style intake tubes with the smooth ones......and I also agree the SLP unit sucks.....It's heavy (expensive for what it is) and the metal tubes retain engine compartment heat heating the incomming air which IMO, defeats the whole purpose of a cold air intake.....I have also tried it back to back on the dyno and at the track....ZERO detectable difference in torque and horsepower, and ZERO detectable difference from a 30mph and 50mph roll...and with the SLP unit in place, I actually always had a bit slower MPH going thru the traps in the quarter which could have been a coincedence, but it definately wasn't helping anything, thats for certain......total waste of cash..................Joe:thumbsup: