Base Insulator - 108-37 rwd and both intercooler hoses

and both intercooler hoses

2000-2003 GMC Sierra 1500

Since the APR Fueling System brings port injection back to the engine

Choice of Two Tailpipe Exits

8L L4 2017 - 2019 Audi A3 Prestige 121/2L L4 2017 - 2019 Audi A3 Premium Plus 121/2L L4 2017 - 2019 Audi A3 Premium 121/2L L4 2015 - 2018 Volkswagen Golf S 110/1

Base Insulator - 108-37 rwd and both intercooler hosesOverview: Base Gasket Features: 2 3 8" Secondary 1 3 8" Primary Includes Carb Studs Phenolic Fits Holley Model 4165, Model 4175 and Quadra Jet 11 16" Thick Application: Year Make Model Submodel Engine Size Universal Specs: Brand Holley Emission Code 5 Material Fiber Model 4165 4175 Product Type Base Gasket Warranty Limited 90 Day