AFE: Magnum FORCE Performance Accessories Coupling Kit: (4" x 3-1/2")ID x 3-1/2"L Reducer (Silicone) z06 hx Chevrolet Performance Multilayer Head Gasket

Chevrolet Performance Multilayer Head Gasket for LT4 and LT5 engines

This intake system incorporates a unique coupling that smoothens the air transition into the intake tract

SuperPro elastomer bushings replace the OE rubber bushing

Included in this system are two dual 4"

Features 12-Rib drive & 10% Overdrive Pulley

AFE: Magnum FORCE Performance Accessories Coupling Kit: (4" x 3-1/2")ID x 3-1/2"L Reducer (Silicone) z06 hx Chevrolet Performance Multilayer Head GasketDETAILS: 4 & 3 1 2 ID, 3 1 2 Length 100% Silicone Construction for Long Lasting Durability Commonly Used on aFe POWER Intakes Allows for Expansion, Movement, and Vibration Includes Two Stainless Steel Clamps\\\ 4 to 3 1 2 Reducer: This 3 1 2 long coupling is designed to connect to tubes with a 4 and 3 1 2 diameter. Its commonly used on aFe POWER cold air intake systems, but can be used for a variety of projects. Silicone Construction: Its silicone