- The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available
- Constructed from aircraft grade aluminum and high strength stainless steel
- Sound rating 96dB
- Much lighter than the stock muffler
Same-day shipping cutoff: Noon Pacific Time
We are now accepting submissions for this year’s Calendar Photo Contest! Please upload your images here by 9am Pacific on September 16, 2025.