Rapid Flow Air Intake For the F150 Eco Boost


AMERICAN FALLS, ID – March 20, 2011 – Bully Dog’s team of engineers have successfully created a new, fully-enclosed Rapid Flow cold air intake (RFI) system for the 2011 Ford F150 3.5L Eco Boost (part number 51202).  This revolutionary system is designed to replace the stock air intake lid, air filter, and the second tube assembly on the vehicle making this intake the only “stage 2” intake for the F-150 Eco Boost on the market.  Features of the new Bully Dog RFI include a high-flow, 8-layer cotton gauze air filter that improves airflow by 25% over stock models and filters over 99% of particulates.  The fully enclosed system protects the filter from radiant engine heat ensuring that only cold air from outside the vehicle makes it into the air intake stream.


Proven Results

Dyno testing reports the new Bully Dog RFI provides power gains of 25.4 horsepower and 8.7 lbs.ft of torque over the OEM stock air intake system on a 2011 Ford F-150 3.5L Eco Boost.




Torque (ft. lbs.)

2011 Ford F-150 3.5L Eco Boost w/Stock intake

278.3 @ 4560 rpm

370.7 @ 3860 rpm

2011 Ford F-150 3.5L Eco Boost w/Bully Dog Rapid Flow CAI

303.7 @ 5170 rpm

379.4 @ 3790 rpm


Bully Dog is an industry leader in developing full-featured aftermarket enhancements for an unprecedented number of vehicle applications. Founded in 1999 and guided by the idea that every vehicle possesses untapped potential, Bully Dog equips gas, diesel and heavy duty drivers with the tools to unlock their rides’ potential power and economy gains.