2010-2018 Ram 6.7L Cummins Intake Horns

The intake horn on the 2010-2018 RAM 6.7L Cummins

The air horn, also called the intake elbow or plenum, is the last stop for boosted air. Air leaves the turbo, runs through the hot-side boost tube to the intercooler, comes back through the cold side, and turns down through the horn into the intake manifold of the 6.7L Cummins. The factory grid heater sits in that same inlet. The stock horn does the job on a stock truck, but it is the main restriction once the air leaves the intercooler.

What fails and why

On this engine the horn's trouble is flow and what sits inside it. The grid heater in the inlet cakes with soot in normal use. Its terminal fastener can also loosen and drop into the manifold, where the engine's 5-degree rake sends it toward cylinder 6. That failure shows up as a knock with P2609 or P0542 codes and is documented from about 40,000 miles. On flow, Banks measures the factory elbow at about 38.6 lb/min.

Stock replacement vs. upgrade

If the factory horn is staying and you are only in there for a gasket, a Mahle intake manifold gasket set puts it back to stock. If you want flow, the Banks Power Monster-Ram moves about 72.7 lb/min, 88% more than the factory elbow, and swaps the grid for a coil heater, which takes the fastener risk away. Banks lists the 2013-2018 Monster-Ram as 50-state emissions compliant. Whatever elbow you choose, look for a CARB EO number on the product page before you buy.

What we carry

• Banks Monster-Ram intake and grid heater upgrades for 2007.5-2012 and 2013-2018 pickups, plus chassis-cab versions for both year ranges.
• The BD Diesel Killer Grid Heater upgrade kit.
• The S&B 76-1014 intake elbow for 2007.5-2018.
• Mahle intake manifold gasket sets, including the master set.
• A Dorman 696-207 engine air intake hose and a WCFab 3.5-inch silicone boot and clamp kit for the connections.

Fitment notes and install

Horns split at the 2013 model year, and chassis cabs need their own versions; the standard Monster-Ram fits dual-alternator pickups but not chassis cabs. The install is real work. Plan to unbolt the dipstick tube, charge boot, grid heater plug and fuel rail, scrape the old gasket clean, and torque the new plenum down. With an aftermarket horn in place, the engine-mounted fuel filter cap is harder to reach, which you will notice at every fuel filter change. 2013-2018 trucks also carry a second, chassis-mounted fuel filter. Verify by VIN before you order.

Frequently asked questions

How big a job is swapping the intake horn?

Bigger than it looks. You unbolt the dipstick tube, charge boot, grid heater plug and fuel rail, scrape off the old gasket, then torque the new plenum down. Have the gasket set in hand before you start, or bring the truck to our bays in Wildwood, FL and we will install it.

Will an aftermarket horn get in the way of anything?

Yes, the engine-mounted fuel filter. Aftermarket horns make its cap harder to reach, so expect filter changes to take a little more patience.

Why does the horn matter if I already upgraded the intake?

Because the restriction moves. A cold air intake works on the air before the turbo, but the factory horn is the restriction after the intercooler. Banks rates its Monster-Ram at 72.7 lb/min against 38.6 for the stock elbow.

Is the Monster-Ram emissions legal?

Banks describes the 2013-2018 Monster-Ram as the only 50-state emissions-compliant Ram intake elbow. For any other elbow, look for the CARB EO number on the product page.

Not sure what fits? Call the shop at the number in the header, or use the fitment checker on any product page. We install everything we sell.