- XTrue internal crossover
- Bolt-onNo cutting · no welding
- 304Polished stainless, end to end
- AUSDesigned by GM Motorsport
Ramjet Performance Parts // RAM 1500 5.7L 2012-2023
Ramjet Cat-Back Exhaust Ram 1500 5.7L
★★★★★Wake the HEMI from the cats back. Free-flowing 304 stainless with a true internal X-pipe, fully bolt-on.
Happy Ramjet owners
- ★★★★★
“Sounds and looks every bit as good as advertised.”
Chris S. - ★★★★★
“Excellent product! Has a very deep real v8 note which I love!! Easy bolt on design”
James H. - ★★★★★
“Fitted exhaust in 2hrs and sounds excellent. Very happy.”
trent F.
- ☎Talk to the team03 9746 6656
Shipping & returns +
$99 flat-rate delivery Australia-wide on exhaust orders, insured and tracked. Ships worldwide. Unopened items can be returned within 7 days. Not sure it fits? Call 03 9746 6656.
Fitment +
Australian-delivered Ram 1500 5.7L HEMI V8, 2012–2023, in Classic (DS), Limited (DT) and long-wheelbase. Not sure? Call 03 9746 6656.
What's in the box +
Cat-back exhaust with integrated X-pipe centre muffler. All gaskets & mounting hardware included.
More breathing.More bark.
The factory mufflers and mid-section choke the 5.7L HEMI. Ramjet replaces them from the catalytic converters back with a free-flowing 304 stainless system and a true internal X-pipe. A deeper note and sharper response, fully bolt-on.
Why Ramjet
Ramjet vs factory
![]() |
OEM
Factory | |
|---|---|---|
| Free-flowing 304 stainless | ||
| True internal X-pipe crossover | ||
| Deeper, sharper HEMI note | ||
| Rust-proof, polished for life | ||
| Add to cart |
Why it works
Integrated X-pipe centre muffler
A true internal X-pipe balances exhaust pulses between both banks of the HEMI, improving flow efficiency and sharpening throttle response while reducing the flat highway drone cheaper systems leave behind.
Free-flow cat-back system
The restrictive factory mufflers and mid-pipes are gone, replaced by smooth, free-flowing 304 stainless tubing. It bolts onto the factory pipe just after the catalytic converters. No cutting, no welding.
Full polished 304 stainless
No mild steel hiding under a coating, no aluminised tube rusting from the inside out. Precision-welded, accurately fitted, and built to look like jewellery under the truck.
Race-proven. Not marketing-proven.
Designed and dyno-developed by the GM Motorsport race team: the same people who race what they engineer.
The details
Specifications
- Fitment
- Australian Ram 1500 5.7L HEMI V8 · 2012–2023 · Classic (DS), Limited (DT) & long-wheelbase
- System
- Cat-back exhaust (catalytic-converter-back)
- Centre
- Integrated X-pipe centre muffler
- Material
- Full polished 304 stainless steel, precision-welded
- Sound
- Loud or Quiet. Interchangeable, identical fitment
- Fitment type
- Direct bolt-on. No cutting or welding
- Hardware
- All gaskets & mounting hardware included
How it goes on
Step-by-step video install available.
1. CheckClassic (DS) or Limited (DT)? The DS has the crosshair grille; the DT has the wider grille with RAM lettering.
2. ChoosePick Loud or Quiet. Same fitment and flow, only the volume changes.
3. Bolt inBolts onto the factory pipe just after the cats. All gaskets and hardware are in the box.
4. DriveCheck for leaks once it's warm, then enjoy the sound.
What Ram owners say
- ★★★★★
Great system, took 45 minutes total to remove and refit the new ram jet system to the ram 1500 , customer service was the best service I’ve ever received . Great deep note highly recommend
Chris K.Verified buyer
Ramjet Catback Exhaust Ram 1500 - ★★★★★
I spent months researching exhaust systems and landed on this one. Build quality is first class and the sound is exactly what these trucks should have from factory. Customer service was also fantastic.
Matt D.Verified buyer
Ramjet Catback Exhaust Ram 1500 - ★★★★★
Been through a couple of different exhausts over the years and this is by far my favourite. Doesn't sound raspy or cheap. Just a proper V8 note
Darren H.Verified buyer
Ramjet Catback Exhaust Ram 1500 - ★★★★★
Arrived in just over a week, 1st impression was great quality. Removed stock system and fitted new cat back system. Didnt without hoist, just lifted air suspension to highest setting. Everything fitted well and installation was straight forward. Very happy with the sound, very deep rumble!
Ed
Ramjet Catback Exhaust Ram 1500 - ★★★★★
Good quality, super easy to install and does sound good.
Jim E.Verified buyer
Ramjet Catback Exhaust Ram 1500 - ★★★★
Certainly gives that V8 growl. One wouldn't call it quiet, but not overly intrusive at steady highway speeds when towing. At cetain revs there is a a noticeable increase in cabin sound, but only when accelrating. It seems to improve fuel economy by at least 1L per 100km, if not more... wasn't expecting that.
Captain W.Verified buyer
Ramjet Catback Exhaust Ram 1500
Frequently asked questions
Everything Ram owners ask us before their cat-back goes on.
Which Ram 1500 variants does this suit? +
Australian-delivered Ram 1500 5.7L HEMI V8, 2012–2023, in Classic (DS), Limited (DT) and long-wheelbase. Choose your model above.
What does it bolt to? +
It’s a true cat-back: it bolts onto the factory pipe just after the catalytic converters, and works with the standard headers. No cutting or welding. All gaskets and mounting hardware are included.
How loud is it? +
You decide. Loud and Quiet options share identical fitment and flow — only the volume changes. The integrated X-pipe balances exhaust pulses between both banks, which helps reduce the resonance that causes highway drone.
Will it drone on the highway? +
Drone depends on the truck, the load and how it’s driven, so we won’t claim you will never hear any. The true internal X-pipe balances exhaust pulses between both cylinder banks, which helps reduce the resonance that causes cabin drone. Accessories that alter the cabin’s acoustics, such as a RamBox, hard canopies, metal drawer systems or large alloy toolboxes, can create extra resonance. If you are particularly sensitive to cabin noise, choose the Quiet option — identical fitment and flow, simply less volume.
Can I add headers later? +
Yes. The Ramjet header-back kit bolts straight on to the Ramjet cat-back, so you can build your system in stages.
Shipping & returns +
$99 flat-rate delivery Australia-wide on exhaust orders, insured and tracked. Ships worldwide. Unopened items can be returned within 7 days. Faulty items are fully covered after inspection.
Fitted. Driven. Reviewed.
Verified feedback from Ram 1500 owners running the Ramjet cat-back.

