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Lexx exhaust?


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Installed this exhaust on my YZ250F, love it! I had it tested a couple months ago, and as it came out of the box with the Quiet Core S/A insert and the MX tip installed, it registered 88dB! The Trail Officer was quite surprised; he even tested it again o the same result. This isn't even with the Trail Saver Quiet Core installed, as in soco3594's second picture. It's amazing the amount of tuning options they offer for the Lexx, you can run it wide open with 3 different sized end tips, with just an optional S/A screen if you don't need the entire quiet core, etc.

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Wow, 88dB is impressive. How does the power compare to stock?

It actually didn't even come with the stock exhaust as I bought it used. It had a wide open, ridiculously loud White Bros. Carbon Fiber III on it, and that definitely wouldn't do for the trails. I got the bike just before winter, so didn't even get to go on a real ride and it wasn't running well anyway. So I've only been running the Lexx since I got the bike, and I have no complaints - I've only heard positive things from others with the same exhaust as well.

One of these days, once I'm done my rebuild, I'll pop that White Bros. back on and see how the two compare.

It is pretty dang quiet, though I would be interested to see if it also meets the FIM 2-Meter Max test, as I believe it's a much more accurate test than the AMA one.

Remember, this is a 250F though, so your 450 could very well be slightly louder.

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Yeah, it looks really god, I have been riding all day since I didn't have to work, so I will get some pictures soon as I get the smile off my face. The performance boost is very noticeable even with the queit core insert. I love how queit it is to, this was deffinatley a good choice.

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Great exhaust, looks, sounds and preforms amazing. Right now i have the queit insert in, and that alone gives me a great performance boost. When it is fully uncorcked, it is lound but sounds awesome and the power is insane. ?action=view&current=100_0030.jpg

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There it is, love everything about it, its completly amazing and worth every penny.

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I took the insert out of mine today and ran the MX tip. Bike was great! Not as loud as stock and really opened up the bike. The quiet core seemed to take a bit of the hit away from the bike. Loving it now. I had one the best days riding ever today! This exhaust is unreal, price, fit and finish. I am finding that when I jump it the rear tire is leaving some marks on the exhaust, just barely catching it but still leaving marks. Not real worried about it, just gonna run it.

Again, mine is on a YZ450

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  • 1 year later...

I have a 2012 KTM 350 xcf w and when I bought this bake the stock exhaust sounds ok but not ok at the same time, I was looking for a louder, cool looking, quality and cheap exhaust ( I know right)there are not many of those that can fit my 350 but then on rocky mountain I found this lexx and read all the reviews and also I just ordered my Lexx mx exhaust, I can't wait for it to arrive

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  • 1 month later...

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