TCI 4L60E/700-R4 Beast Sunshell ' 82-later Fresh Air Systems BBK long tube exhaust headers

BBK long tube exhaust headers outperform the competition in quality value and performance

highest quality Transmission and off-road products meeting current and future needs for racers who demand innovation for their vehicles

Coil-On-Plug Main Harness

2000-2013 GMC Yukon XL 1500

TCI 4L60E/700-R4 Beast Sunshell ' 82-later Fresh Air Systems BBK long tube exhaust headers700R4 4L60E SmartShell Assembly.. This 700R4 4L60E Sunshell assembly is made from Vaccu Melt 300 Steel to handle far higher stress than stock replacement units. TCI Hardened Input Shafts are constructed from hardened, aircraft quality Vaccu Melt 300 billet steel or Vasco 300 high strength steel. They feature increased lubrication flow and strength with a resized diameter that provides optimum stress distribution along the entire length of shaft along