Lexx MXe Motorcycle & ATV Exhaust Lineup

Lexx Slip-On Exhaust Line Up:
www.rockymount...
The Lexx MXe Exhaust line up is a tunable exhaust system allows the user to change from a race exhaust (46mm Race Tip) to a forest friendly silencer (Quiet Core Insert) Engineered to improve torque and acceleration with an increase of up to 4 horsepower on some machines.
Lightweight design saves up to 3.5 lbs. over the stock exhaust.
Included 46mm Race Tip for closed course competition.
Includes USFA approved Quiet Core spark arrestor insert that brings sound levels down below 96db. Optional tuning exhaust tips and optional screen type Spark Arrestor are available to allow user to further tune power and sound characteristics.
Constructed of lightweight 6061 T6 aluminum and durable 304 stainless steel.
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[@bigbird-xm]

I put one on my XR650L and ride out to the US forest roads with my small back pack and bolt on my quiet tip in, and the Forest Rangers give me thumbs up in there truck as I drive by to get to this crazy old track in the mountains and huge Hill climb. This was on my build list to strip the XR650's diet. Bike feels so much better now. I get back down to the road and pop the 46mm back in and ride home and everyone can hear me. Love it.

[@rmatvmc]

That's awesome! 😂😂 Thanks for watching and giving feedback. Stay safe on the trails!

[@jasonwulff8341]

I have a LEXX slip on on my 400ex and i love it. I've ran it for 4 years so far. I had the coupler from the mid pipe to the header pipe and RM warranted it after 4 years. I highly recommend it.

[@obs.vanness1604]

Jason Wulff what jets should I run at 700 elevation

[@michaelosullivan8288]

Wish there were some of nice colour end cap and bolts that be looking sweet of styles of own bikes

[@mikeraskin7319]

I was concerned the product was just junk, but now I think of it as a no name product from what I can tell good quality. Cool concept with the different tips for sound and performance. Reminds me of the old super trap exhaust.

[@theegoat343]

Would i need to rejet my carb for this exhaust i have a 2004 honda 400ex? If so what kit should i get?

[@MorganaRavenheart]

How will this sound on a Honda XR250L?

[@paytonsorensen3116]

I have a raptor 250 and i have really no price range for an exhaust but on rocky mountain website there is the lexx the fmf and the hmf i’m wondering which one you would recommend as I want a louder exhaust than my stock one but not something that will blow my ears out.

[@benjaminturner2]

What are the recommended jets? I have a 440ex big bore, stage 1 hot cam, and lexx exhaust. My sea level is 502’

[@rmatvmc]

Sorry, this exhaust does not come with recommended jetting for different machines. However, it really shouldn't be too far off from our current jetting if you have it dialed in.

[@felixdiaz9213]

Will this exhaust with the quiet core be neighborhood friendly?? It's for an old klr

[@Rodny2001]

Hey I have a question when I buy the exhaust is there a sticker included? It might sound stupied but im curious😂😂

[@DanteCold43]

Rodny yes I got one in mine

[@brycekennedy9297]

Yes but the sticker is not good quality

[@BlueJJ562]

I found a lexx pipe at the dunes. How can I find out for what type of bike/ATV it's for? All i can find on the pipe is the screen type engraved on it. 12-007A and 12-007B

[@GilbertoMontalvo-zv9ye]

Will this fit a 2001 yamaha raptor 660

[@markfreeman408]

Wow

[@tacticalwho3502]

No body replied to mark? Huh

[@scotwatson169]

Running just the race tip with no silencer will it mess with back pressure?

[@quadbrothers5801]

Probably.

[@AnthonyLopez-dj4lf]

With out the quite core inside, how loud is it, I mainly want an aftermarket exhaust on my 2008 Suzuki LTZ 400 for sound, I want it really loud

[@jls1811]

i have one of those on CRF 450X i just brought from a mate and its stupid loud .have a mrd exhaust on a drz 400 and i thought it was loud .the lexx is way to loud for my liking

[@jls1811]

without the quiet core its loud enough and sounds good. if you want a loud muffler that is't to expensive there good .to loud for the road .if your riding down the bush its ok as long as your not trying to hide from anyone

[@nepicness]

Just saying nothing gets more bike parks (or quad) then a loud exhaust

[@louisantoniocarlotta9357]

Can you also show top 5 exhausts?

[@bm_applecor3306]

Is there on for a Honda trx300ex?

[@ralphweir6654]

If I use a power commander fuel controller what map should I run with the race tip

[@fazerider3092]

Mine didnt come with the midpipe or the mount bracket

[@michaelosullivan8288]

Hi mate I loved watching your videos and any chance which loudest muffler lexx mxe or FMF powercore 4 and it hard to tell which is louder

[@rmatvmc]

They're both pretty close. But the Lexx with the quiet core insert is pretty dang quiet. - Chase

[@michaelosullivan8288]

@@rmatvmc sweet cheers and can you get different colour tips for lexx mxe like Fastway or PMB that be cool as I need blue and white tip to match my yamaha

[@robertwoods2505]

Will this fit on my OEM '12 CRF250X header? Looks great and it has a great price. Thanks!

[@rmatvmc]

Yes, we have these available for your bike and they are designed to work with the stock head pipe. You can check them out here: www.rockymountainatvmc.com/parts/lexx-mxe-slip-on-silencer-with-mid-pipe-p

[@robertwoods2505]

@@rmatvmc Thank you for the quick reply.

[@colinbergstrom3955]

does anybody know what's the warranty on a LEXX MXE Trail Saver Quiet Core Insert 1276200001

[@quadbrothers5801]

I want a quiet muffler that isn’t much louder than stock. Do I have to re jet the carb for the trail save option? My carb is stock right now and I’d like to know if I have to re jet it for the quietest option on the new muffler.

[@rmatvmc]

Re-jetting is always an option but you should be alright.

[@quadbrothers5801]

Rocky Mountain ATV MC thx man! I have the jets that came with my bike when I bought it. I can swap them for a muffler. Just wasn’t sure if the quietist option would be a big enough change for a jet swap.

[@THEELISTUART]

Does the race tip make the bike sound any different? I’m looking for an affordable exhaust that gives a better sound to my CRF250X

[@THEELISTUART]

Does the race tip come with the exhaust or is that a separate purchase

[@rmatvmc]

The Race Tip is included with the exhaust.

[@user-xv2iz7ix5o]

What main jet should I put for the 46mm tip on a stock ltz 400

[@rmatvmc]

Unfortunately that is not a straightforward answer. Your jetting will depend on your specific elevation and riding environment.

[@user-vp5nw9kj2l]

Can this be used on a 2001 yz250f

[@rmatvmc]

Sorry, we don't have this available for that bike.

[@deec3158]

What jets should I run with this exhaust because I run this exhaust and it runs lean.

[@Erlov71]

Do you have the quiet core in it?

[@bm_applecor3306]

Is there one for a Honda 300ex

[@rmatvmc]

Unfortunately, this exhaust isn't made for the 300EX.

[@MR.c126]

Does this fit a Kawasaki kfx 400 ??

[@rmatvmc]

This will fit 03-06 models

[@toastedfilms5353]

Is there anyway to get a replacement midpipe? Got the Silencer off a friend and it needs a new midpipe but I can’t find one anywhere

[@rmatvmc]

Seth, what bike do you have?

[@toastedfilms5353]

Rocky Mountain ATV MC 09 YZ250F

[@michaelwatters6421]

Dose it come with all that?

[@rmatvmc]

This exhaust comes with the silencer, mid-pipe, quiet core insert, race tip and mounting hardware. The optional screen spark arrestor and tuning tips shown at 2:57 in this video are available separately.

[@michaelwatters6421]

@@rmatvmc ok thank you

[@nickygray4691]

Do you need to jet for those exhaust

[@Erlov71]

You should be ok since it just the slip on.

[@nickygray4691]

@@Erlov71 you sure

[@tyler28950]

Yeah I’m curious about this too, I have a 04 raptor 660 and wondering if I need bigger jets or what

[@dantheman7297]

Does this fit 2022 yfz 450r

[@rmatvmc]

Unfortunately, this does not fit the 2022 Yamaha YFZ450R. You can check out the ones we have available for that quad here: www.rockymountainatvmc.com/parts/atv-exhaust?v=2022-yamaha-yfz450r

[@THEELISTUART]

Can you use the Lexx slip on with an fmf powerbomb header?

[@rmatvmc]

The Lexx slip-on is designed to be used with the stock header so we can't guarantee fitment for your bike with the Power Bomb, but we have had customers use that combination with success.

[@CoralReefkid]

@@rmatvmc how about a dr. D header on an 05 Crf250r?

[@verbalwidget7267]

I have a Gen 1, KLR650 with a powerbomb, and the Lexx worked and fit just fine

[@juanmontanez1874]

@@rmatvmc mine wouldn’t fit my stock header. The mid pipe wouldn’t fit it was too tight.

[@eliasb794]

I've got an XR650L with the power bomb head pipe. I had an exhaust shop expand the front end of the Lexx mid pipe and then everything fit great with no leaks.

[@fazerider3092]

Are there any headers I would need that are compatible with these?

[@rmatvmc]

This Lexx MXe exhaust is designed to work with the stock header pipe.

[@fazerider3092]

@@rmatvmc okay. Thank you!

[@geomar2302]

You have to rejet it?

[@rmatvmc]

It will vary depending on the setup of your machine. Although jetting isn't always necessary, it will help you get the most out of the exhaust if jetted correctly.

[@geomar2302]

Rocky Mountain ATV MC I have a Yamaha raptor 660 and I had a stock exhaust on it And I wanna put the new exhaust I got from lexx mx

[@Erlov71]

@@geomar2302 i have a suzuki 400 and was wondering how close the lexx with quiet core is to stock, might not have to rejet since the core restricts it a little.

[@danetrainoutdoors834]

What happens if you run it with just the end cap

[@PewLand]

Its loud as shit and makes a bwufwufwuf sound because the exhaust hits the upper portion of the end cap because it wont have a pipe turning the exhaust flow downwards.

[@danetrainoutdoors834]

@@PewLand between these 3 day I tried running it like this, my quad ran lean but sounded crazy so I put the other part back in

[@ianbuljo7047]

Is it a lot louder than a stock crf 250x exhaust?

[@ianbuljo7047]

I want a quiet but still light exhaust.

[@rmatvmc]

With the quiet core insert in, it's nice and quiet! The quiet core insert was built for trail riding specifically to keep the noise level down.

[@tylerdurden9748]

Lexx Suxx