Category Archives: ATV Performance Modifications

HMF exhaust sound on a one thumper

Hey everybody,
I have wanted to make my bike sound unique for awhile now and have spent a lot of time scouring the web for videos of different exhaust systems. The 850’s really do sound sweet with an HMF and I love the new sound they get.
I am not looking for a noise maker, or that loud straight pipe sound that some pipes make. Just about everyone who puts an HMF on a 500 goes for the XL, so it’s even harder to know what the regular swap would sound like. If I do this I would get the regular swamp series and run the quiet core so nobody is bothered when I go out on trails. Has anybody heard one of these and can you say if the bike had a better grumble/rumble/deep tone to it, or was it just the raspy loud noise?

I have a 40mm pumper carb on my old 99 now, so she’s breathing like and HO now, and I’m curious if the pipe helps me gain a little power. If it doesn’t then who cares, I’m in this for the sound.

Hopefully someone can offer some experience. Thanks

Looking for a boost in power but nothing ridiculous

Hello everyone, I just bought a 2015 sportsman etx. It is completely stock with nothing on it at all…I am just looking to give it some more power for not to much mney… Nothing ridiculous just a little extra to get through some extra mud and water…also is there a snorkel kit out for the etx I’m really looking into one of those but I don’t know if it is possible for the ETX.

Looking for a boost in power but nothing ridiculous

Hello everyone, I just bought a 2015 sportsman etx. It is completely stock with nothing on it at all…I am just looking to give it some more power for not to much mney… Nothing ridiculous just a little extra to get through some extra mud and water…also is there a snorkel kit out for the etx I’m really looking into one of those but I don’t know if it is possible for the ETX.

2013 500 ho clutching

Wondering what guys put on these bikes for aftermarket clutch kits? I realize its only a 500 but what can a guy do to put some life into the throttle response dont want to sacrifice too much top end speed but i want it to boogy when i hit the throttle approaching a mud hole. Is epi a good brand? What else is out there? Will a clutch kit even make a difference on a 500? Thanks in advance

Exhaust Decibel Levels?

hey all, new to the forum so if this info is somewhere else, apologies for resubmitting. But I am in the market for a slip on exhaust. It will be for a 2014 Sportsman 850 XP LE. This will be the 2nd summer I have had the atv, and I am slowly getting it where I want it. I am looking for a throatier more aggressive sound, and I do 95% of my riding in the mountains of CO so more power doesn’t hurt. I also would like to avoid a noise ticket…. Anyone done noise tests on their aftermarket exhausts and been under 96db?

I haven’t run into any Rangers yet, but like I said, this will be my 2nd summer so I don’t know if not seeing any is a common occurrence. Thanks for your help and suggestions!