RAM TRX Stage 3 Performance Package
Stage 3 is our most comprehensive package for the RAM TRX. It builds on everything in Stage 2, adding more boost through the crank-driven side of the supercharger drive and freeing up airflow into the engine even further. It's the complete package for owners who want the most from their TRX's supercharged Hemi.
What's Included
Supercharger Pulley and Belt
A smaller-diameter supercharger pulley spins the blower faster, which increases boost. It's machined from billet 7075-T6 aluminium and has a grip-textured surface that holds the belt firmly without causing premature wear. A new belt is fitted with it.
ATI Super Damper Overdrive Balancer
Rather than shrinking the supercharger pulley further, Stage 3 increases boost from the other end of the drive. The ATI Super Damper harmonic balancer is 10% overdriven, which spins the supercharger faster while keeping belt slip to a minimum. Our technicians pin it to the crankshaft for security. The balancer also dampens crankshaft vibration across the rev range, and the factory accessory drive is unaffected.
95mm Ported Throttle Body
We fit a 95mm OEM throttle body that has been ported to improve airflow. With the supercharger now moving considerably more air, this upgrade removes a restriction between the intake and the engine.
160-Degree Thermostat
The 160-degree thermostat opens earlier than the factory unit. That keeps engine temperatures lower and helps the TRX hold its power when it's being worked hard. It's a direct replacement and fits with no modifications.
aFe Magnum Cold Air Intake
A supercharged engine is only as good as the air it can draw in. The aFe Magnum intake replaces the factory airbox with a high-flow, heat-shielded system that feeds the supercharger cooler, denser air. Its oil-free dry filter is washable and reusable, which keeps maintenance simple.
Manta Headers and High-Flow Catalytic Converters
We replace the factory manifolds with Manta's 4-into-1 headers, which have 1¾" primaries. They're matched to high-flow catalytic converters. This combination reduces exhaust restriction right at the source, so the engine can make the most of the extra boost.
Manta Twin 3" Cat-Back Exhaust
This Australian-made system completes the exhaust upgrade. It uses twin 3" pipework, an H-pipe and free-flowing mufflers, and it's finished with 5" tips in your choice of chrome or black. It delivers a deep V8 note to match the performance.
Excess XS1500 Fuel Injectors
More air and more boost require more fuel. We fit a set of eight 1500cc injectors from Excess Fuel Injectors, which are tested and flow-matched in Melbourne. Precise flow matching across all eight cylinders gives consistent fuelling and smooth drivability, and the injectors have plenty of headroom for future upgrades.
Custom Dyno Tune
With the hardware fitted, we calibrate boost, fuelling and ignition timing on our 4WD dynamometer for 98 octane fuel. This is what brings the package together: every component works in harmony, and the gains are delivered safely.
How It Works
Baseline Assessment
Every TRX starts with a baseline run on our 4WD dyno. This confirms the vehicle is healthy before any work begins and gives us a stock figure to measure against.
Installation and Tuning
Our technicians fit the Stage 3 components, then tune the vehicle on the dyno to get the most out of the new hardware.
Road Testing and Refinement
Once dyno tuning is complete, we road test the TRX and make final adjustments so it drives as well as it performs in everyday conditions.
Your Results
At completion, you'll receive a dyno graph showing your TRX's power and torque before and after the upgrade.
Book Your RAM TRX Stage 3 Upgrade
To book in or discuss the Stage 3 package, give our team a call.
