Building A Performance Big-Inch EFI Engine? Zipper’s ThunderMax EFI Throttle Body, Manifold and High Flow Air Cleaner assemblies provide the big airflow required for larger performance engines. These oversize CNC-machined castings replace the factory designs used on Delphi®-equipped 2001 and later models, and are designed to accept the factory electronic components so assembly is a snap. Our ThunderMax High Flow Air Cleaner includes a beautifully CNC-machined billet backplate, 2-3/4” deep high flow filter, breather plumbing, heavy-duty support brackets, and fits all years of ThunderMax throttle bodies.
2006-UP (Throttle Cable Equipped) Models: Throttle body and manifold are 1-piece, unit construction. Available in 54 and 60mm; high flow design requires ThunderMax air filter with spread bolt pattern. Manifold width available for most popular engine kits from 95” up to 124”, with oversize (1.780” ID) intake port opening. Includes our billet intake flanges and seals.
This product is not for sale or use on pollution controlled vehicles.