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, KS from aerospace grade, USA 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)