ICT Billet 551572 - LS4 Intake Manifold to LS3 DBW Throttle Body - Adapter Plate LS 4 Bolt TB GXP

LS4 Intake Manifold to LS 4 Bolt Throttle Body Has 75mm (see below for larger sizes) through hole, tapered to 92mm throttle body Works with both DBW and DBC throttle bodies Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum Includes: adapter plate, bolts, and gasket LS4 engines are only found in 2005-08 Pontiac GXP, 2006-07 Monte Carlo SS, 2006-09Impala SS, and 2008-09 Buick LaCross Super If running a throttle body larger than 92mm, then this will require an additional adapter # 551571 and 50mm M6 bolts (available upon request)