Enthusiasts are always looking for more power from their cars, and R2C has responded recently with this direct flow air cleaner base specifically designed for the Holley 4150 4-bbl. carburetor. Offering more horsepower and torque, these are a must-have for the enthusiast looking for optimum performance from their carbureted machine. For more details, see the official press release below.

Official Release:

CFD 4150 4-BARREL AIR CLEANER BASES WITH DIRECT FLOW  TECHNOLOGY

Introducing the most powerful and versatile racing air cleaner bases for Holley 4150 4-barrel applications!

Bolt-on double-digit power gains. Precision booster signal and entry profile increases torque and provides crisp throttle response.

Experience Improved pull out of the corners and additional straightway speed!

9+ rear wheel horsepower gain with a 604 crate, and 16+ engine horsepower gain on a dirt modified!

Months of design evaluation and flow bench testing, followed by extensive dyno and track tests (now over 400 independent pulls!) conducted by the most respected names in race engine and carburetor assembly, have resulted in the best flowing, highest power producing air cleaner bases for Holley 4 barrel race applications. Every application from Stock Cars to unlimited Late Models and Big Block Modifieds have achieved significant gains in power and response/driveability.

R2C engineers developed each precision base shape to augment the venturi profile of the popular 4150 series Holley carburetor, resulting in dramatically smoother entry profiles and reduced restriction and a much stronger and consistent venturi/booster signal, allowing precision racing carburetors to perform at optimum levels and engines to produce increased power and torque. When used in conjunction with R2C Late Model/Modified air filter configurations, nothing comes close to the performance advantage R2C CFD 4150 4 barrel bases offer racers in applications from Stock cars to the highest horsepower open engines.

CFD 4150 4 barrel air cleaner bases are offered in three configurations, allowing racers to select the precision contour that maximizes overall performance based on their individual applications. Strong and durable, R2C CFD bases won’t dent or deflect, causing filter sealing issues.

IN STOCK FOR IMMEDIATE SHIPPING. ORDER YOURS TODAY!

* Patents Pending

Features:

• More horsepower and torque than any racing air cleaner base available today.
• 3 CFD 4150 Shaped flow director configurations to choose from
• Easy interchange versatility that allows you to dyno tune and track test, quickly maximizing horsepower based on the power brand of each race car
• Ultra strong nylon construction – No bending, dents, and it runs cooler