Hellion Street Sleeper System (2018-2019 GT)

SKU 18-19GTHellionStreetSleeper-56lb-tune only-1

In Stock & Ready To Ship!

Lebanon Ford Performance is proud to offer the Hellion Power Systems Street Sleeper Twin Turbo System for all 2018-2019 Mustang GT's. This system mounts the turbos under the car and uses the factory airbox making it virtually impossible for unsuspecting victims to tell you are packing a serious punch. 

Paired with a PBD Tune, JMS Boost a Pump, and ID 1050X injectors, this is by far the fastest and most cost effective way to break 1000HP.

Easier Install

Gone are the days of countless hours fitting pipes and trying to make everything work leak free with a top mount system. This hidden mount system takes similar time to install as most supercharger systems with substantially less piping for fast precise installation. 

Power... Serious Power

With the 5lb spring installed (included,) customers will see 7-8PSI good for 700RWHP on the basic setup. These power numbers can be achieved with no options other than a set of 56lb/hr injectors and a good tune. On 9-10PSI with the 7lb spring installed (included) customers can expect to see over 800RWHP.

LFP highly recommends a boost a pump and 1050X injectors as well as an Oil Pump Gear upgrade for those looking to reach 800+RWHP. Fortunately, all of these items can be bought directly from LFP all together using the drop down menu above.

If you are looking to see four digit power levels, we recommend this fuel system, E85, ID1300 injectors, and of course a Palm Beach Tune. 

 Suggested Upgrades 

We have found that the HP Tuners NGauge offers a more consistent, better all around tune for both reliability, driveability, and power. The NGauge has many more features than the SCT devices and is also far more user friendly. We highly recommend jumping up to the NGauge. 

Boost A Pump & 1050x Injectors- When looking to use the 7lb spring, these are pretty much a must. Pair them to the PBD NGauge tune for best results


Infinite Options

Here at Lebanon Ford Performance, our goal is to set you up with the perfect Hellion Power Systems Twin Turbo setup for your car. Give us a call today to talk about other necessary options, system upgrades, and even installation if you would rather have our techs build your car!

 For Max Power Systems: Please give us a call. Due to the variety of Fuel System Options, Turbo Upgrades, and add-on's, we want to ensure order accuracy and build a system unique to your need. 

Hellion Power Systems 

The next big thing is here! Recognizing the popularity of huge horsepower street cars with the ultimate “sleeper” image, Hellion designed the most innovative twin-turbo system in history — the Street Sleeper! We have listened to our customers who desired a different design for the S550 Mustangs. This new system places the turbos in a hidden location — all factory hoses, airbox and connections stay intact. You can open the hood and it will just look like any stock Coyote V8 with a cold-air intake. However, it is a twin-turbo system that is fully adjustable from five to 40 pounds of boost and performance levels anywhere from 600 to over 2,000 horsepower.

With over 15 years in building hidden turbo systems, Hellion designed a true bolt-on system. There is no need to tap the oil pan or modify any factory sheet metal. The simple installation can be performed in under a day.

While the base Street Sleeper system is a tuner kit with entry-level, cast-wheel 62mm turbos, we have many optional upgrades and accessories. 


  • Multiple turbo options available
  • Large vertical flow core intercooler (highest flow bar/plate core available)
  • Twin Turbosmart Comp-Gate 40 wastegates
  • Twin Turbosmart VEE port bypass valves