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Replcing Exhaust

AzMandella

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Jul 10, 2025
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Tucson, Az
Looking to replace the muffler on my 2025 ADV5 . I know it won't lower decibles much but tone makes a big difference . But RPM Powersports says if you put theirs on it is no longer street leagal . Anyone know what's up with this and would it pertain to all aftermarket mufflers ? HMF doesn't say anything but are more than double the cost .
 
Does Arizona have emissions test to register and drive them on the street? I have the Aftermarket Assassins exhaust and tune and no one here in Idaho cares as long as it has a plate with an OHV sticker on it.
 
The only real problem I’ve seen with replacing mufflers is that state parks and forests require spark arrestors to be installed. With the RPM muffler, you just take the spark arrestor from the OEM muffler and install it in the RPM.

Other than that, it’s just about being considerate. Not ripping through neighborhoods at full throttle, etc.
 
The only real problem I’ve seen with replacing mufflers is that state parks and forests require spark arrestors to be installed. With the RPM muffler, you just take the spark arrestor from the OEM muffler and install it in the RPM.

Other than that, it’s just about being considerate. Not ripping through neighborhoods at full throttle, etc.
Include BLM lands with the spark arrestor requirement. Everyone should do their part in preventing fires. It's not worth the 1-2 HP difference without it.
 
I decided to go with the Trinity dual muffler slip on quiet . It does come with a spark arrestor . I had to call them to make sure since there was no mention wether it had one or not in the description .
 
High Country Unlimited B's FAB UTV

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