4 Inch

SKU ADR064 Category
  • NZ Made!
  • 100% Quality Stainless Steel
  • Stylish rolled tip design
  • Patented Spiral Louvre Baffle Technology
  • 3 Stage Sound Absorption Medium
  • Suitable for High Tuned Street/Race bikes!!
  • Double Embossed Case
  • Body size 4″ round flat caps
  • Inlet sizes are 44.5mm 51mm 63mm
  • Custom sizes available just ask!
  • Total

New range

Our new range of Motorcycle mufflers have hit the market! All the features of our automotive range with the style you have always loved. No carbon here! Whether you’re looking to improve sound, power, looks or weight on your motorcycle you come to the right place. These new design are off the shelf and ready to meet your needs whatever they may be.

Customised to suit

We can customize these to suit your application, Track street strip or oval we have you covered!! Our factory is the leading custom muffler manufacturer in the country with all our own in house machinery we offer an extremely quick turnaround time, just ask!

Important note

Please note we don’t offer these as a kit to fit a particular motorcycle make or model.


300mm, 350mm, 400mm, 450mm

Inlet Size

44.5mm, 51mm, 63mm


Racing Basic, Racing Extreme, Racing Premium, Standard


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