I got this for the spark arrestor for riding in places where required and to meet or beat the 96db threshold for certain hare scrambles/enduros. I was under the impression I could just bolt this on and not do any mapping changes to the efi on my 2013 RMZ 250...we'll it is true, though I did get a bog on a throttle blip one time before it was warmed up fully, again just once on the 1st trip out with it. This had never happened before.Hasn't happened since and I've had it out 3x since. So the verdict is still out on that but pretty sure it's good. I noticed a lot of low end gain but the same time I got the Q4 I went up two teeth on rear sprocket so can't attribute all of the extra grunt to the exhaust. With all that said I love the sound, perceived low end gain, and ability to ride and race places where I couldn't with out it.
Write your review and you'll automatically be entered in our monthly drawing. Include an image or video to DOUBLE your chances to win!Write Your Review
This installed very easy. It does not use the clamp in the center. The pipe is not real quiet, but not real loud. I wish it was quieter, but it is not bad. It is a good looking pipe, plus it takes care of my spark arrestor.
Nothing but praise for this. There are a few quirks to it though one of them being that it does not come fully assembled, so you need to be careful not to throw anything out by accident. By not fully assembled I'm talking about the spark arrestor insert. Coming to quirk number two they used an allen head instead of a 6mm/8mm so installing the insert is more of a pain then it should be. Quirk number three you will most likely need to by a hose clamp and install it where the pipe meets the muffler.
I bought this for my 2012 rmz250 to ride in the trails and dunes and it fits perfect. The bike has more power and sounds great.
I just bought a 2018 rmz250 and put this Q4 S.A. on it and it sounds great. It's a bit more quiet than the stock silencer and fits and looks great.
Easy to install. Make sure to save stock rubber grommets. They are required for the new install
Super easy to install. And even though its a quiet pipe. It sounds great. Much louder than stock. Power was night and day in difference
I have 2 small annoyances with this product
1. The muffler sticks out much farther than stock and contacts my plastics. Nothing has melted yet though
2. My stock clamp is too large for this pipe. I didn't buy my bike new so it is possible that it wasn't a stock clamp but I doubt it.
Other than that, it's a nice piece, looks well made, quieter than stock.