Speed Engineering 4L80E Conversion Crossmember 07-13 GM Truck (2WD)Available in Satin Black or Red Speed Engineering suspension and chassis components are designed and tested with the purpose of creating a great fitting, strong replacement product at an affordable price. A majority of their products were designed around their headers and exhaust systems, allowing the customer to save time and money by offering compatible products rather than guessing one will work with another. They stand behind their products in

Heavy Duty 3/16" Mild Steel Construction

Lighter than aluminum w/ lower heat soak propensity & greater strength over stock molded intake

Outside Diameter of Outer Spring (in): 1

Size Part Number 15x3

1970 - 1981 Pontiac Firebird

Extensive testing led to a runner design that is longer and less restrictive and gives the user the ability to remove individual runners from the manifold for modification

950" installed height applications

HOLLEY HI-RAM INTAKE MANIFOLD - CATHEDRAL #300-123

FIC 1200cc Fuel Injectors for LS1/LS6 Height Applications

aftermarket rails including the Atomic LS EFI

43 WHP on Gas at 58psi 90%DC Turbo 1043

2007-2013 GMC Sierra 1500 (2wd)