7 Inch Muffler

SKU ADR007-08-09-10-11 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!!
  • Polished Embossed Case
  • Lifetime Guarantee!!
  • Body size: 7″ diameter x 350mm, 400mm, 450mm, 500mm, 550mm body length
  • Tip diameter: 112mm inside  (4.5″)
  • Total


These mufflers are especially suited for performance engines that need more muffling – Rotaries, turbo 4 and 6 cylinders. Compression and boost make noise. The big body size on ADRENLINR  7″ series mufflers give you a deep sounding note, and the straight-through design allows full flow and power.

Spiral Louvre technology

We use SANPRO Industries Patented Spiral Louvre Duct Baffle Design, giving a spiral effect to the exhaust gases as they pass through the muffler. These baffles offer reduced noise levels over  the conventional perforated designs. They are particularly effective at reducing neutral throttle drone.

Double embossed

Our muffler bodies are double embossed which adds significant strength to the muffler, eliminating unwanted resonance to provide an improved tone with a deeper note.

Solid construction

Solid construction is more resilient to the rigours of daily use. Scrape damage is minimized by our unique mounting strap design.

Spotless consistent welds

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


63mm, 76mm, 89mm, 101mm*


Short Straight, Medium Straight, Long Straight, Dumpy, Slash Cut, Old School Dump, Old School Straight


Standard, Racing Basic, Racing Premium, Racing Extreme

Tip Length

Long 175mm (7"), Medium 115mm (4.5"), Short 80mm (3")

Body Length

350mm, 400mm, 450mm, 500mm, 550mm


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