Unlike any other mid-pipe on the market, the RPM SxS Monster Mouth features a massive 3" chamber with a 2.5" muffler outlet. This unique design allows you to run the stock muffler, any RPM X3 Slip-On Muffler, or any aftermarket muffler that utilizes the stock mounting locations! We left absolutely zero restrictions on the table. This cat-delete pipe flows the maximum amount of air possible, measuring a full 1/2" larger at the core and muffler inlet. To accomplish this, we designed a completely new spherical exhaust gasket built from heavy-duty stainless mesh infused with composite graphite.
This stainless steel, 100% TIG-welded X3 cat bypass frees up the absolute most horsepower while substantially lowering the radiant heat coming from your exhaust system. Any restriction—especially the stock catalytic converter—directly robs your machine of power. The RPM Monster Mouth bypass will net you 5-8 wheel horsepower on the stock tune alone. Best of all, tuning is NOT required to run this mid-pipe!
Fitment: Fits All Years & Models Can-Am Maverick X3 Turbo, Turbo R, and RR
Features:
Massive 3" Chamber & 2.5" Outlet: Delivers maximum airflow and a great, sporty exhaust tone.
Innovative Spherical Gasket: Built from heavy-duty stainless mesh infused with composite graphite.
Stainless steel & 100% TIG-welded construction: Extremely lightweight and durable.
Dual O2 Bungs: Comes standard with a second bung for data loggers (O2 bung caps included if not in use).
Utilizes the factory O2 sensor
Adds 5-8 wheel horsepower on a stock tune!
Lowers radiant heat from exhaust components.
Universal Muffler Compatibility: Connects seamlessly to OEM, RPM Slip-On Mufflers, or aftermarket mufflers that use the stock-style header.
No Tuning Required!
Installation Notes: Includes a replacement RPM 3" Exhaust Bracket (requires removal of the factory bracket). You do not need to reinstall the factory heat shields that clamp to the factory mid-pipe, but all other factory heat shields are perfectly reused!
All orders typically ship within 2-4 business days of order being placed. Weekends, holidays, and weather may slow fulfillment down on order processing. Unless otherwise noted, backordered items will ship according to their estimated shipping times.
Customer Reviews
Overall rating: 4.9 / 5 from 36 reviews.
LET IT FLOW!! Sheesh what a difference. Easy to install (except for the bracket because a lot off stuff in the way but man did it make a difference in how the machine glides now, the sound is awesome even though I still have the factory muffler (coming soon) also being able to hear the turbo whistle is lovely. Thanks rpmsxs and thanks for the extra goodies in the box.
Pretty easy straightforward install. Replacing the factory support bracket was the biggest pain. Would recommend spring tool. Overall very pleased with the product! Noticed improvement in performance and overall sounds quality of the exhaust. 2025 3X DS Turbo.
Monster Mouth is a very nice piece! Easy to install with the instructions, noticeable power gain.Ran into stock muffler sounds quiet like normal until you get after it and you can tell there's no more restrictions with this pipe!
Jeff H
Jason was very helpful in linking me with a PDF of the install. The job is kind of a PITA and time consuming even with two people. I had trouble getting the old turbo/pipe band off and the new 3 inch pipe mount is difficult to R&R the old OEM.
Great part again from RPM sounds perfect, install was super easy I had my 12 year old help me only took about and hour. Couldn't be any happier with the sound.
Everything was very high quality. It cooled my x3 down dramatically. They sent it with a new bracket to replace the factory one. It was a pain to change out. The pipe itself was easy but the bracket had bolts that were "very" difficult to get to. It would have been nice to have some instructions in the box. I think the old bracket would be fine if I would have trimmed or ground a piece out of it. Overall I'm very happy with my purchase and would definitely buy from RPM again!
Love this addition. Looks great but really brought the heat down. As far as sound it has a little more growl no one really says much about it and it carries the great sound all the way through.You cans also smell exhaust a bit more after due to the cat removal. Which I expected. I run a octane booster by klotz so I can smell it alot more. Not a huge change but it is alot more responsive seems to light the turbo faster but might also be the BOV I Installed too. Either way it's a nice piece just need to add the chambered with e valve to finish.
Sounds amazing was on the fence of 2.5 or full 3 inch glad I went with 3 inch. My brother has rpms 2.5 and not that it sounds bad but the 3 inch has a much better pitch and tone. Ran it open header for a few pulls while waiting for my exhaust and it's a ear piercer
Absolutely love the product and super good quality! Dropped engine temps by 12 degrees on my rig (x3 max RR). But finding the videos for install could have been made way more easier for user!! Love the project and would put as #3 must do! Wished I had done this sooner!!
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