ZZP Ecotec Serpentine Belts

Model:"Stage 2 LSJ" is for smaller pulley (3.1" and lower) M62 cars."Stock LSJ" is the stock OE length belt for the Cobalt SS and Ion Redline.  "400" is the stock replacement belt for LNF, LE5, L61, LSJ (turbo) with Air Conditioning. "390" is for your LSJ turbo converted car or LNF, LE5, L61 car with an ATI underdrive pulley. "345" is the stock replacement belt for LNF, LE5, L61, LSJ (turbo) without Air Conditioning. Or if you were to remove your AC compressor. "705" is the most common belt for our 2.2/2.4 supercharger kit.For 20 years ZZPerformance has engineered products to give you an advantage in your race builds. Setting records has meant finding small advantages where we can. ZZP was the first to run 10's in a 3800, we hold the M90 supercharger record. We own one of the industries only supercharger dynos. In the LSJ market where you are limited to 6 ribs, ZZP holds the M62 dyno record. An OEM or aftermarket brand serpentine belt is meant to last as long as possible which leads to