’14-’21 Challenger, Chieftain and Roadmaster models (Hard Bags) - Black
P/N 147-21770Big and Bold, these SuperTrapp Stout mufflers give you a deep tone that will give your Indian the sound it's been missing and the performance you need.
4" Muffler bodies with billet machined aluminum end caps. Available in chrome or black finishes.
Large 2.5" diameter cores wrapped in 'Pillow-Pack' insulation material for long life and are also completely rebuildable.
Uses all stock mounting hardware in the stock location. Hard Bag versions include the saddle bag support brackets.
Sound Tech Data (per SAE J1287 Sound Test);
2020 Challenger;
Stock; 79.8 dB at idle/89.1 dB at 2750 rpm Stout; 87.6 dB at idle/97 dB at 2750 rpm
2014 Chieftian;
Stock; 87 dB at idle/92 dB at 2500 rpm Stout; 91 dB at idle/95.3 dB at 2500 rpm
Big and Bold, these SuperTrapp Stout mufflers give you a deep tone that will give your Indian the sound it's been missing and the performance you need.
4" Muffler bodies with billet machined aluminum end caps. Available in chrome or black finishes.
Large 2.5" diameter cores wrapped in 'Pillow-Pack' insulation material for long life and are also completely rebuildable.
Uses all stock mounting hardware in the stock location. Hard Bag versions include the saddle bag support brackets.
Sound Tech Data (per SAE J1287 Sound Test);
2020 Challenger;
Stock; 79.8 dB at idle/89.1 dB at 2750 rpm Stout; 87.6 dB at idle/97 dB at 2750 rpm
2014 Chieftian;
Stock; 87 dB at idle/92 dB at 2500 rpm Stout; 91 dB at idle/95.3 dB at 2500 rpm
