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

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

Marsoni

M251S

$30.95

Get it in 3 business days with 1 day shipping. Friday, May 29

LS4 Intake Manifold to LS3 DBW Throttle Body - Adapter Plate LS 4 Bolt TB GXPLS4 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 Lacrosse Super If running a throttle body larger

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I sprayed off the shutters before using. Then applied the product. It’s a thicker, white liquid. (Think lotion) it applied easily and dried quickly since it was being absorbed into the plastic shutters and aluminum windows; mine were very ‘thirsty’ from being in the direct afternoon sunlight. I like how I didn’t have to worry if one part rcvd more product than another. It blended easily. I think it looks good, but so did using other products over the years. I was told by a neighbor that this was the best product to use on them and other plastics. Time will tell if it holds up.

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Reviewed in the United States on May 1, 2026