LS4 Intake Manifold to LS3 DBW Throttle Body - Adapter Plate LS 4 Bolt TB GXP 551572
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LS4 4-Bolt Intake to 4-Bolt Throttle BodyMachined Finish Aluminum
Includes: Adapter Plate, Bolts, O-Ring Seal
75mm through hole, tapered to 92mm for the throttle body
Works with both Drive By Wire (DBW) and Drive By Cable (DBC) throttle bodies