Show Stopper 2023 Softail Lowrider ST

Can a Harley Davidson produce more power and accelerate faster than a 1000cc sport bike? At Iron Motorcycle Performance, we set out to answer that question with a resounding “yes.” How did we do it? With the biggest turbocharger we could fit, of course!

Specifications

Year: 2023
Model: Softail Lowrider ST

Performance Upgrades

Motor:

117 CI M8
Darkhorse Custom Man of War Flywheels
Custom CP Pistons
Feuling Race Cam Plate, Oil Pump, Lifters, Rocker Arm Shafts
Woods 408x Cam & Valve Springs
S&S Piston Jets, pushrods, Lifter Cuffs, Intake Manifold
Injector Dynamics Fuel Injectors

Driveline:

Darkhorse Man of War Compensator
Trask Billet Clutch Basket
Custom Baker Manual Adjuster
Vulcan Chain Drive 25/48
Barrent steels and fibers with upgraded springs

Transmission:

A1 Cycle Back-Cut & Polished Gearset
Trask Vent Cover
AIM Hydraulic Conversion & Slave Cylinder

Suspension:

Ohlins HD 516 rear shock
GP Cartridge Front Forks
Trac +2 Billet Swingarm
Mymachinest Triple Trees

Wheels/Brakes:

BST 17-inch Torque TEK Wheels
Beringer Calipers
Galfer rotors
Kraus Radical Mount Brackets & ABS Delete

Turbo Setup:

Garrett GTX2867R Turbo
Tial Wastegate & Blow Off-Valve
JMB/IMP Custom Stainless Piping and Intercooler
Turbosmart Boost Controller

Body & Aesthetics:

Custom Paint and Tank from Radical Revisions
Nasty Hog Rebel Chopped Saddlebags with Crash Guard & Fender/Side
Trask Risers
Stainless steel Custom Bars
Saddleman Seat
Glowshift Gauges (Boost/Oil Pressure)
Custom tank/faring lift
Custom Dynamics Shark Headlight and Vent Blinkers
PSR short levers

Build Story

To create the ultimate power-packed cruiser, we knew the right platform was essential. We opted for the 2023 Low Rider ST, a lighter softail frame that would give us the best chance of maximizing acceleration. While heavier touring models might hinder speed, the Low Rider ST came equipped with a full front fairing and saddlebags right off the factory line—making it the ideal candidate for our performance build.

Once we had the perfect canvas, we dove into the R&D stage. The first challenge was creating an engine that could handle the immense stress of 20 pounds of boost. To achieve this, we needed to reinforce every critical component. First was the core of the motor, the flywheels. Without wasting any time we called Andrew at Darkhorse and after a few talks we had a masterpiece from Darkhorse. So as most builders know you build a motor around a cam, so a few phone calls and a lot of math later and we had a Woods 408X on the way. A quick call to CP and we had some custom made pistons being made. So now the turbo that was the question so we went to the best turbo guy around. Enter the expertise of Justin from JMB Performance. Together, we decided on a Garrett GTX2867R turbocharger and custom intercooler that was going to meet all of our needs . The result? A Harley that could breathe new life into performance like never before.

Now, for the crucial moment: the dyno numbers. Stock, the 2023 Low Rider ST generated 95 horsepower and 115 lb-ft of torque. After some blood, sweat, and tears, long nights and frustration . The final numbers were nothing short of spectacular. 262HP

This custom 2023 Low Rider ST is proof that with the right modifications, a Harley can go toe-to-toe with sport bikes in terms of speed and power. From the turbocharged engine to the high-performance suspension, every detail was designed to enhance the riding experience. The result? A one-of-a-kind powerhouse that offers unmatched acceleration and jaw-dropping performance on the road.