How to install FMF Q4 Quiet Core Exhaust Muffler on Honda CRF250L (Yoshimura, Delkavic) + SPL Test

Step-by-step video tutorial demonstrating how to install FMF Q4 Quiet Core Exhaust Muffler on Honda CRF250L. The procedure is likely to be very similar for the Honda CRF250 Rally. I decided to install a slip-on muffler onto my Honda CRF250L because of its weight. I was pretty happy with the sound of the stock exhaust and with how quiet it was. However, I’m trying to reduce the weight of my CRF250L, and one of the most cost-effective weigh savings one can make is a slip-on muffler. I purchased the FMF Q4 Hex S/A Silencer because it can be used with a factory fairing (heat shield). There a number of other, equally good options on the market, such us Yoshimura RS-4 Race Series exhaust system with stainless steel muffler or range of Delkavic mufflers for Honda CRF250L. Every one of these options will provide a significant weight saving versus the stock exhaust. The video also includes a loudness test (SPL test) of both the Honda CRF250L stock exhaust versus FMF Q4 HEX S/A exhaust silencer. Necessary Parts: FMF Q4 HEX S/A - Part Number: 041568 (06-1697.FMF.Q4H) High Temp Silicone: RTV Visbella Silicone Gasket Maker Torque Values: Muffler Mounting Point: 32Nm = 23.6lbf-ft Muffler Header Mounting Point: 32Nm = 23.6lbf-ft Fairing Bracket Mounting Point: 5Nm = 4.4lbf-ft Weight Difference: Stock Silencer: 4,980g Stock Heatshield without Fearing: 305g Stock Total: 5,285g FMF Q4 Silencer: 2,471g FMF Q4 Fairing Bracket: 141g FMF Q4 Total: 2,612g Total Weight Saving: 2,673g SPL...