Ecotec Race Battery Hold Down Kit Supercharger Parts & Kits We offer double the warranty

We offer double the warranty of BC's and other competitors

The factory engine at stock power level is fine when everything is new and tight

These high quality rising rate performance lowering springs were devised by John Powell drawing on his experience building race Cobalts for General Motors Performance Division

if you use one of our cores the VIN will not match your car and you cannot pass the test

Compare them to ZZP's

Ecotec Race Battery Hold Down Kit Supercharger Parts & Kits We offer double the warrantyThis is an add on kit to your Race Battery purchase. It includes everything needed to install this into your Cobalt or Ion. Battery not included.