Sean O'Hara started Street Diesel Performance in Connecticut in 2001 because he couldn't find a decent company with a strong background in diesel-only performance anywhere near him. "Our specialty focuses on Ford," Sean told us, "but we still work on Dodge and GM.
"We bring the newest products and technology to our customers," he explained. "We strive to be on the cutting-edge of all that is new. We build and test products before they get to the customer—from engine to transmission, from suspension to differential. We handle it all and have the knowledge to back it up when questions are asked." On top of all that, Street Diesel Performance is a family-run business.
It was a brand-new vehicle when Sean drove it into the shop to start modifying it (there was a grand total of 45 miles on the ...
This '12 Ford F-350 not only stands out because of the vermillion red color but also because of its 14-inch Rize Industries lift and myriad other cool parts. It was a brand-new vehicle when Sean drove it into the shop to start modifying it (there was a grand total of 45 miles on the odometer). The big lift allowed for big wheels and tires, and that job is ably handled by a set of 22-inch American Force Super Single Surge wheels and 40-inch Toyo rubber. Fox 2.5-inch coilovers handle the front, and four 2.5-inch standard remote reservoir shocks bring up the rear.
The 6.7L engine received lots of attention from the SDP crew. The air flows into the engine via an AFE Stage 2 intake system and then flows through an SDP 4-inch downpipe to a 5-inch SDP CAT/DPF to a 5-inch MagnaFlow exhaust with an MBRP tip. Controlling all this is a Spartan Diesel Technologies 200hp Warhammer tuner. The truck also has a full EGR cooler delete kit from SDP.
Sean O’Hara’s ’12 Ford F-350 was built to show off the capabilities of Street Diesel Perfo
A Mag-Hytec differential cover protects the rearend and adds cooling capacity.
A Mag-Hytec differential cover protects the front axle as well.
Super Single Surge wheels from American Force are an impressive addition.
Fox 2.5-inch coilover shocks up front keep the truck riding smooth.
Ryan’s youngest son (also named Ryan) poses in front of the vermillion red Ford.