You would have seen the specs say Sound Level: Loud, but just how loud is this Slip-On System By HMF Racing? The Titan-QS is roughly 1-2 decibels louder than stock. Then there’s the Titan-XL which is even louder and comes in at roughly 4-6 decibels. The stainless steel shell is substantially lighter than the stock exhaust and is ridiculously durable! When riding along you really don’t have time to be worrying about your exhaust, do you? But, that said, Fuel Tuning is a must when installing an HMF Exhaust on your machine. The headache caused is definitely not worth skipping this! If you do not tune your engine you can cause extensive damage to both the exhaust system and the engine! You will also void the warranty on your exhaust and possibly even your machine! We know you want to head out on the track or off-road again. We know you want to test out this awesome upgrade but hey! Fuel Tune and enjoy more than one ride out into the woods!