Monster-Ram, Diff Cover Upgrades: Power & Mileage Gains

“I wanted to do these both at the same time,” says Bill Pruchnik about installing a Monster-Ram and Ram-Air Differential Cover on his 2018 RAM 6.7L. She’s getting up there in mileage, and I was getting ready to make a trip. I’m an auto mechanic by trade, and I was at a Dodge dealership working on Rams in the 90’s. When I saw that grid heater bolt problem, I became very interested in learning more about the issue. I don’t need to put $20,000 into rebuilding an engine for a truck that cost me $40k. I’m not doing it! I don’t know what they were thinking. I just don’t understand how they could not have designed a better heater assembly. That’s the intake to your engine. Why would you jeopardize it by having something that could fall in?”

“I was originally attracted to the Monster-Ram because of the design and performance gains, but when I started looking at the videos it became apparent that I needed to change my stock one. My grid heater wasn’t horrible, but it was loose. Could I have gone another 100,000 miles on it? Maybe, maybe not. I’m not going to take a $20,000 gamble. After getting it, I looked at the difference between the sizes and designs of the intakes, and I couldn’t believe how small and choked out the stock was compared to the Banks.

High-flow Monster-Ram intake elbow installed on Cummins RAM

Installing the Monster-Ram did give me a performance and mileage jump, but let me tell you about the mileage first. Here in Jersey, we had the winter mix fuel when I did it, and driving to work I’d get maybe 15-16 mpg. After installing the Monster-Ram, I started seeing 18 to 21 mpg! I haven’t towed with my fifth wheel yet, but I’m sure the mileage will surprise me. Performance-wise, the truck does not hesitate like it did when you step on the throttle. Off-the-line power is crisper, and you can hear the air being fed into the engine when the truck accelerates. It is an incredibly good addition to the engine.”

Banks Ram-Air Differential Cover cooling rear axle

“I went for the Ram-Air Differential because I wanted more cooling. Whenever we go to Florida, we’re always trailering, whether it be a fifth wheel or a car trailer. I always want to make sure that I have adequate cooling and that includes the rear gears. The Banks Diff Cover checks all of the boxes, and like the Monster-Ram, it just makes the truck better.”


Banks Monster-Ram Intake & Grid Heater Upgrade for 2019–2021 RAM 6.7L Cummins

Banks Ram-Air Differential Cover Kit for Chevy, GMC & RAM

Monster-Ram for RAM 6.7L Wins in CFM and MAF

Not Just Another Pretty Face: Banks Ram-Air Differential Cover