Boost Activated: Zach Harkness’ 2015 Jeep Wrangler JK “Stretch”

Once upon a time, there was a Jeep that sounded like a jet. It lived in Lindon, Utah and terrorized the landscape with screaming wheels and hurt feelings. Sounds like a fairy tale, right? Not this time. “Stretch” is a 2015 Jeep JK owned and built by Zach Harkness. Stretch features LS7 injectors and pushes 9.5 pounds of boost thanks to its ProCharger supercharger.

This Jeep features a ProCharger D Series supercharger, giving it an added boost.

“Stretch was bone stock when we got it,” he said. “We cut out eight inches from the front of the frame and six inches from the rear of the frame. We were trying to reduce weight and make it as ‘buggy-like’ as possible while still being a Jeep. So we moved the front axle forward four inches and the rear axle back six inches. That’s how it got the name Stretch.”

The suspension of this one-of-a-kind Jeep features a highly modified Teraflex four-inch lift. The steering is hydro assist by Redneck Ram. Steering components are rounded out through the use of steering tie rods and a drag link made from aluminum by Fusion 4×4. Zach detailed the choice by admitting that, “If it rams into a rock, the metal will bend back.”

The big Jeep utilizes Spicer Ultimate 60 axles. Zach said, “They are real heavy-duty axles and the strongest we could find for the weight class.” KMC Machete beadlock 17-inch wheels are wrapped with 42-inch Maxxis Trepador rubber.

Power is sent to the axles via a set of Tom Woods’ 1350 front and rear driveshafts. The transfer case is from a Jeep Rubicon. The stock six-speed manual still resides behind the stock power plant, but the D Series ProCharger adds a huge assist. Alex said, “When you get on it, it sounds exactly like a jet. It’s unreal. It forces so much air through the exhaust.” Zach guesses that Stretch puts about 450hp to the ground. It’s also clear that Zach loves every one of them.

From deserts to mountains, this Jeep spends a lot of time off-road.

The main build took about a year to complete. Now you can find the big Jeep out stomping the terra firma in a variety of places all over the country. Stretch can be found in Moab, on the Rubicon Trail, and even up in Montana, South Dakota, or Colorado as time allows. For more rad builds or to find out more about what Zach and the crew are up to, check out @thejeepguyutah on Instagram. And don’t forget to visit ProCharger’s website and Facebook page for information on its power adders.

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About the author

Christie Materni

As a photographer, and self-proclaimed "magic maker" for over 12 years, Christie loves to create anything from amazing images to great chocolate chip cookies. Traveling the country with her camera, husband, and sometimes a dog, in search of fast cars and tough trucks is her favorite way to spend the day.
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