2017-2019 L5P Duramax 4" Cold Air Intake Kit with Air Box

Cooler air, more of it

Wehrli's intake replaces the restrictive plastic factory intake tube and air box on the 2017-2019 L5P with fabricated aluminum parts and a dry filter.

It draws cooler air in through the ram-air duct in the hood and the inner fender, and the large 4 in. tube with smooth bends raises intake air speed and volume. Wehrli says the result is more horsepower and torque, quicker throttle response, cooler intake temperatures and a stronger turbo sound.

Wehrli moved the critical ram-air duct seal to the underside of the hood for a cleaner engine bay.

Who it's for

2017-2019 L5P owners who want a bolt-on intake upgrade that works on a stock truck.

Key specs (per Wehrli)

What's included

• Aluminum intake tube, 4 in.
• Air box with lid
• Dry air filter and pre-filter cover
• Seal for the hood ram-air port
• Silicone boot, stainless T-bolt clamps and hardware; powder-coated finish

Fitment notes

• Fits 2017-2019 Chevrolet Silverado / GMC Sierra 2500 HD and 3500 HD with the 6.6L L5P Duramax.
• Installs with basic hand tools.
• California: Wehrli does not ship this part to California.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.