When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Bump. My 4l60 dynoed 630 on its first and single pull on the dyno. I've done abou 8 4x4 launches off the two step blowing all four tires off. 09 ecsb 4x4 ltz