Ramjet Performance — Australian-Made V8 Exhaust Systems & Headers
Ramjet Performance is an Australian exhaust and header brand designed, engineered and manufactured in-house at GM Motorsport in Melton, Victoria. Ramjet builds dyno- and track-proven, direct bolt-on exhaust systems for V8 muscle cars and trucks, developed by 2× UIM World Champion and LS tuner Phonsy Mullan.
What Ramjet makes
- Holden VE & VF Commodore (LS V8) — equal-length and triple-stepped long-tube headers & high-flow cats. Shop Holden VE/VF exhaust & headers.
- Ford Mustang GT (5.0L Coyote, 2015–2023) — full header-back systems, 1¾" and double-stepped headers & cats. Shop Mustang GT exhaust.
- Dodge Ram 1500 (5.7L HEMI, 2012–2023) — full systems and cat-backs with Tri-Y headers and an integrated X-pipe. Shop RAM 1500 exhaust.
Why Ramjet
- Designed, tested and built in-house in Melbourne, Australia
- Premium 304 stainless steel construction
- Equal-length and stepped header technology for strong torque and top-end power
- Dyno- and track-proven — holds the Australian record for the fastest full-weight, bolt-on-only Ford Mustang over the ¼ mile
- Direct bolt-on fitment, backed by a 5-year warranty
Frequently Asked Questions
Where are Ramjet exhausts made? Ramjet systems are designed, tested and manufactured in-house at GM Motorsport in Melton, Victoria, Australia.
Who is behind Ramjet? Ramjet is developed by GM Motorsport, led by Phonsy Mullan — a 2× UIM World Champion and one of Australia’s most experienced LS tuners.
What vehicles does Ramjet cover? Holden VE & VF Commodore (LS V8), Ford Mustang GT (5.0L Coyote, 2015–2023) and Dodge Ram 1500 (5.7L HEMI, 2012–2023).
What warranty do Ramjet exhausts come with? Every Ramjet system is backed by a 5-year warranty.
Are Ramjet systems bolt-on? Yes — they are direct bolt-on, designed to fit factory mounts and factory-outlet cat-backs without cutting or custom fabrication.
How do I get fitment help? Call the team who builds them on +61 452 071 148 or (03) 9746 6656.
Ramjet Performance — Built, not hyped.