BD Diesel is best known as a specialist in diesel turbochargers and fuel injection systems, so we were a bit surprised that it makes cold air intakes for diesel engines as well. Designed for Ford, Dodge, and Chevy diesel engines, the BD Diesel cold air intake kit features an innovative design that is said to significantly increase your engine's horsepower output. In this review, we tried on BD Diesel's flagship Volant cold air intake model on our 2013 Ford Super Duty.
- Provides consistent horsepower and torque for diesel-powered trucks and SUVs
- Maintenance-free filter enclosure with sealed lid
- Special box design allows for increased air volume than factory air intakes
- Vehicle specific air ducts
- Can be fitted with standard dry element filters or Volant filters
- Meets OEM standards for cold air intake filters
- Stainless steel hardware and silicone sleeves
- Stylish, streamlined appearance. What made BD Diesel's cold air intake kit stand out for us is its unconventionally slim design. This design allows more air to push through the filter and into the engine and reduce the likelihood of hot air from contaminating the intake charge from the engine.
- Compatible with most cold air intake filters. The cold air intake kit is designed with BD Diesel's Volant aftermarket filter in mind, but it does accept standard dry element filters. However, we do recommend using the former as we logged better horsepower numbers with the Volant filter.
- High-quality construction. BD Diesel certainly didn't skimp on the materials. The body is made of thick steel components, while the sleeves are made from heat-treated silicone that's surprisingly resilient against flexing.
- Easy installation. The cold air intake matches the specs of its designated vehicle. For the 6.7L engine in our 2013 Super Duty, it took us roughly 40 minutes from removing the kit from its packaging to revving up the engine.
- Horsepower increase wasn't as much as we had hoped. Though we did see a noticeable increase in horsepower, it isn't anywhere near the 10% horsepower increase that the brand claims. At the most, we logged in a 6% increase.
- Louder engine sound. Installing the air intake gave our truck's engine a louder rumble. Though this might be a plus for gearheads who like a more aggressive growl, we found the noise a bit jarring later on. Eventually, we found ourselves swapping for a quieter air filter when driving to and from the truck to the test track.
The bottom line
The BD Diesel cold air intake kit offers a relatively solid increase in performance, although we were a bit disappointed given BD Diesel's claim that its supposedly distinct design gave it an edge over the competition. But still, its high-quality parts and OE specifications redeemed it enough for us to give it a passing score.