As an Amazon Associate and an eBay Partner Network affiliate, we earn from qualifying purchases. Learn more

Engine & Performance for the Ram 1500 TRX

Cold air intakes, tuners, and bolt-ons that wake up the TRX's supercharged 6.2L HEMI V8 — more power, sharper throttle response, and a louder blower whine on top of 702 factory horses.

2 parts

The TRX arrives with 702 hp and 650 lb-ft from a supercharged 6.2L HEMI, which puts it in an unusual position: it is one of the few trucks where the factory calibration is genuinely aggressive and the low-hanging bolt-on fruit is already picked. The upgrades that move the needle here are about airflow, heat and calibration, in that order.

A sealed cold air intake with the right filter media is the sensible first move, especially on a truck that eats dust. Beyond that the honest conversation is heat management — a supercharged engine that heat-soaks pulls timing and gives power back — then tuning, then pulley and fuelling work for owners who genuinely want more. Start with the cold air intake guide and the performance upgrade rankings.

TRX powertrain reference

Engine
6.2L supercharged HEMI V8 — Hellcat-derived
Output
702 hp / 650 lb-ft from the factory
Transmission
ZF-sourced 8-speed automatic — uses a specific ATF spec, never a generic bottle
Oil
Full-synthetic 0W-40 meeting Chrysler MS-12633
Supercharger
Runs its own separate supercharger oil, distinct from engine oil
Spark plugs
Eight platinum/iridium plugs; boost wears them faster than the generic "lifetime" charts suggest

Find engine & performance on eBay Motors

Used, OEM, and hard-to-find engine & performance for the TRX — live listings, prices set by the seller.

Search TRX engine & performance

Parts in Engine & Performance

PEDAL COMMANDER for Ram 1500 New Body 2019-2026 Throttle Response Controller - Plug-and-Play 36 Settings, Wireless App Control, Anti Theft - Off-Road Performance Mods - 1500 Accessories

PEDAL COMMANDER for Ram 1500 New Body 2019-2026 Throttle Response Controller - Plug-and-Play 36 Settings, Wireless App Control, Anti Theft - Off-Road Performance Mods - 1500 Accessories

3,634 owner reviews

$269.99 In Stock at Amazon

PEDAL COMMANDER for Ram 1500 New Body 2019-2026 Throttle Response Controller - Plug-and-Play 36 Settings, Wireless App Control, Anti Theft - Off-Road Performance Mods - 1500 Accessories. Add power, throttle response, and efficiency to your TRX's engine with this performance part.

  • Adds power & response
  • Improves throttle feel
Buy on Amazon

Before you buy engine & performance for a TRX

  • Prefer a sealed airbox intake over an open-element cone on a truck that sees dust — filtration matters more than a marketing lumens-style airflow number.
  • Dry synthetic vs. oiled cotton filter media is a real choice: oiled media can foul a MAF sensor if over-oiled after cleaning.
  • Any tune changes what your plugs need. Tuned trucks commonly step to a colder heat range — talk to your tuner before chasing a misfire.
  • Heat soak is the real enemy on a supercharged engine. Cooling upgrades often return more usable power than another airflow part.
  • Check emissions legality for your state before buying tunes or intake hardware that alters emissions equipment.

Read before you spend

TRX Supercharger Upgrade Guide Pulleys, heat exchangers and tunes — in the order that keeps the engine alive. Best TRX Cold Air Intakes Sealed vs. open, filter media for desert dust, MAF and tuning considerations. Best TRX Performance Upgrades What is worth doing, in order, on an already-702-hp truck. Best TRX Exhaust Systems The other half of the airflow conversation — mostly sound, honestly framed. Common TRX Problems & the Parts That Fix Them Heat soak, blow-by and plug wear under boost.

Engine & Performance FAQ — Ram 1500 TRX

Is a cold air intake worth it on a TRX?
It is the most sensible first airflow modification, but keep expectations honest: the factory induction on the supercharged 6.2 is already good, so an intake is a modest gain plus a sound change. The bigger reason to choose carefully is filtration — a TRX driven the way it was built sees a lot of dust, and a sealed airbox with quality media protects the engine better than an open cone in the engine bay.
What limits power on a supercharged TRX?
Heat, more than airflow. A supercharged engine that heat-soaks will pull timing and hand power back, which is why intercooler and heat-exchanger work — plus giving the system time to recover between pulls — often does more for real-world performance than another intake or exhaust part.
Do I need different spark plugs if I tune my TRX?
Usually yes. Under boost, plugs work harder than in a naturally-aspirated truck, and adding a tune or more boost commonly calls for a colder heat range and a tighter gap. Match the exact plug and gap your tuner specifies — on a boosted engine the wrong heat range is a genuine problem, not a preference.