8 Inch Muffler 3 Pass

SKU ADR074 Category
  • NZ Made!
  • 100% Quality Stainless Steel
  • Patented Spiral Louvre Baffle Technology
  • 3 Stage Sound Absorption Medium
  • Suitable for High Tuned Street/Race Cars /Yes Rotary’s Too!!
  • Double Embossed Case
  • Inlet sizes are 63mm or 76mm
  • Body size 8″ round x 400mm, 450mm or 500mm
  • Custom sizes/tip styles are available just ask!
  • Total

Who needs them?

These mufflers have been developed to cure the noise issues some rotary engine vehicles such as tri and quadrotors seem to have. They feature a 3 pass system (effectively tripling the length of the muffler) Combined with our resonator solutions they make the ultimate package!

Greater noise reduction

Our patented louvre baffle based mufflers have been a real hit giving what some engine tuners believe is the edge over the competition. The AdrenalinR edge!!

These baffles offer reduced noise levels over the conventional designs by disrupting and dispersing soundwaves before they reach the Db meter. The results are lower Db reading and an increase in flow through the spiral scavenging effect.

Every single muffler we fabricate utilizes our 3 stage sound absorption methodology which consists of wrapping the baffle in exhaust grade stainless steel wool, ceramic matting and a layer of tightly woven needlemat fibreglass blanket.

  1. The stainless wool breaks up soundwaves and creates a barrier preventing the packing from breaking up and exiting the rear of the vehicle prolonging the life of each and every muffler.
  2. The ceramic matting absorbs noise and heat preventing the fibreglass from turning back to glass.
  3. The needlemat fibreglass blanket acts as the final noise insulator which results in quieter, deeper notes singing from the rear of your vehicle.

Superior construction

Our muffler bodies are embossed which adds significant strength to the muffler, eliminating unwanted resonance to provide an improved tone with a deeper note. The solid construction is more resilient to the rigours of daily use and scrape damage is minimized by our unique mounting strap design.

AdrenalinR Performance Mufflers have spotless consistent welds, we utilize Automated Welding Technology for superior welds.

Spotless consistent welds

AdrenalinR Performance Mufflers have spotless consistent welds, we utilize Automated Pulse TIG Welding Technology for superior welds. Please note the rolled tip design does not allow for the fitting of our removable silencer designs.

Customised to suit

We all know that not all vehicles are created equal so we offer a variety of sizes that we can customise to suit your application. Whether it be at the track, strip, oval or getting legal on the road we will have you covered. Our factory is the leading performance muffler manufacturer in the country with all our own in house machinery we offer an extremely quick turnaround time, just ask!

Weight 8 kg
Dimensions 84 × 28 × 23 cm

400mm, 450mm, 500mm

Inlet Size

63mm, 76mm


Medium Straight, Long Straight, Slash, Dumpy


Standard, Racing Basic, Racing Premium, Racing Extreme


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