Reaper Engineering Single Inlet Big Bertha Dumper Mufflers

100% Australian Made Customisable Single Dumper BIG BERTHA Mufflers, the biggest muffler body we offer. This muffler allows big piped High Power cars to remain stealthy and drone free. Shes a big girl at 7" (125mm) x 12" (300mm) x 14 (350mm), 16 (400mm) or 18" (450mm). Made from 1.5mm thick wall 304 SS material with gas purged filler welds. These are built to your requirements and require up to several weeks lead time, please inquire regarding the current wait list ETA.

Step 1) Pick Body Length (Not including tip length).

Step 2) Choose internal packing materials and application.

Step 4) Specify your inlet size offset (looking into the inlet RHS or LHS) and tip size, if you need anything else than 4.5" 112mm (See Below).

This muffler comes with a 5 piece Hand 4.5" (112mm) OD Lobster Tip. It may be possible to use a smaller tip, please contact us regarding this and If you wish to have the 5" (125mm) tip upgrade click to pay for the upgrade here:

If you need assistance making a purchase please contact Reaper on 0418 150 885.

NOT FOR ROAD USE. RACE AND HI PERFORMANCE ONLY!!!