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  • Rottweiler Performance SSO 950/990 mid pipe.
  • Akro version will fit this muffler.
  • 25 deg hand made merge collector from 304 stainless.
  • Image 4
  • Image 5
  • Fully argon purged heli arc welds.
  • 18-8 Stainless hardware.

Adv 950/990 Single Side Out Conversion From Akrapovic Evo Dual System


Product Description


We are discontinuing this item so get one while supplies last! See inventory level below. 

NOTE!: These only fit the hexagonal shaped EVO silencers and DO NOT fit the OVAL Akra mufflers for that bike. If you order these, and have an oval muffler and want to return it, we will make fun of you for not reading this big red text, right here. 

Up to -16 lbs (7.25kg) reduction in weight!

Already have a dual out Akrapovic EVO system? Convert your existing 2 into 2 Akro Evo muffler system into a 2 into 1 system using our custom SSO mid pipe and use the other as a spare. All hardware is included for the conversion.

The absolute pinnacle in high quality single side out (SSO) exhaust for the KTM Adventure 950 and 990 is finally here from the leaders in high quality products and results. A no compromise, purpose built system for the true adventure enthusiast looking for the sought after 2 into 1 configuration with the highest in quality components, fit and finish.


  • Dramatically reduce the rear end weight by switching to one muffler.
  • Allows for the addition of an 'Endurocell' auxiliary fuel cell. (See here for more info).
  • Properly designed mid pipe with the correct area, convergence angles and exit tube calculations. This means NO restriction combined with proper convergence area for maximum torque values.
  • U.S. spec, premium 304 stainless steel, heli arc welded under a full purge of argon gas. (something rarely performed in production exhaust) This totally eliminate what is called 'sugaring', an inner rough and heavily scaled surface protrusion inhibiting exhaust flow commonly found on the inside most other systems.
  • 18-8 stainless steel hardware included.
  • Muffler inlet size is 65mm

Downloadable Instructions Here

Warranty Information

One year warranty on the craftsmanship of the mid pipe.

Product Reviews

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  1. looks great 5 Star Review

    Posted by on 24th Nov 2016

    Arrived on time like they said it would

  2. Formula 1 Fit And Finish 5 Star Review

    Posted by on 7th Nov 2016

    The quality of this piece is amazing. It looks like a part from an Indy Car or Formula 1. Until now 2 into 1's were abominations but Rottweiler is showing us a new level of quality seldom seen in this industry.

  3. Rottweiler 2 to 1 Exhaust and Yosh Stainless Muffler 5 Star Review

    Posted by on 4th Jan 2016

    Fantastic system, and Chris is great to work with. I had a Leo Vince 2 to 2 system previously, but wanted some extra fuel capacity. The welds on the Y pipe are seriously good, and the muffler does well handling 1000ccs of flow. The system does not have a spark arrestor, but Chris was able to hook me up, and it passed a check in California. It also quiets things down nicely, though as with any spark arrestor, it's a pretty large restriction. It spent some time abuse testing it off road and it did great - no contact with the rear tire or brake caliper, which I've had issues with in the past. Definitely a worthwhile upgrade, and excellent customer service.

  4. Ditto 5 Star Review

    Posted by on 12th Nov 2015

    The weight savings was unbelievable, (17.5 Lbs) freeing up the other side for more gas? Yes! I was a little nervous that the Yoshimura pipe would be too loud. Especially the long runs on the pavement. Well let me tell you, this pipe is fantastic. Roars when you pounce on it, purrs like a little kitten at highway speeds.. Two in to One, is the way to go. Thanks Rottweiler!

  5. Well worth the investment. 5 Star Review

    Posted by on 7th Oct 2015

    2012 990R
    Rottweiler Performance Parts
    Intake System, SAS, Snap Out, Dog House, Auto Tune, Power Commander, Rottweiler Performance Mapping, Single Side Out with Leo Vince Muffler, Flip Mirrors and Endurocell.
    I purchased and installed the Single Side out last week. I immediately felt a significant horse power gain at least 5%. The fitment was absolutely perfect and I had no issues with the installation. Note for the Leo Vince you will have to go back to the stock mid pipe clamps, gaskets and the stock mid pipe mount. Well worth digging into the parts box and retrieving the stock parts. I can not say enough about the performance increase, it was just amazing. I was a skeptic since I liked the look of the dual pipes but I could not pass up the weight reduction. Now a power increase, I could not be happier. Thank you Rottweiler.

  6. I've been wanting this since I bought my Bike new in 2013 5 Star Review

    Posted by on 11th Jun 2015

    I have a 2013 990 ADV Baja and have many upgrades done. 276mm suspension, full set of 18/21 dirt wheels and 17/19 street tubeless wheels, big pegs, skid plate, Li-ion battery, carbon screen, re-mapped, aux underseat tank, GPS, shark fin, stabilizer, HID & LED lights...etc. I also have a fair share of Rottweiler parts like their intake, snap out, doghouse, mirrors, and now the single side out exhaust with long Yosh stainless can. I love it. This is the third exhaust muffler system I've had on this bike and am not intending on buying a fourth. Its the perfect setup. Its the most quiet and has a nice tone unlike the big duals that have an annoying 'drone or buzz' at highway speeds. It has a nice healthy bark, is lighter weight and so much better looking than anything else available for these bikes. I have over 3000 miles on my setup and have not had one issue. To me the Rottweiler brand stands for the highest quality parts, with proper R&D, great customer service, superior performance and aesthetic appeal.

  7. SSO exhaust - Quality craftmanship and material 5 Star Review

    Posted by on 4th Jun 2015

    Expectional product. Design, material and welds are exceptional quality. Install was easy and straightforward with ZERO issues. You can tell by all Rottweiler products , that their commitment to quality , performance and functionality are never compromised. Thank you for making this product. Very Happy Customer.

  8. Best Single Side Out (SSO) or 2-into-1 Available 5 Star Review

    Posted by on 14th May 2015

    Just installed mine last week. VERY happy with the quality, fit, and finish of components. The collector itself is a work of exhaust art...welds are perfect inside and out so there's no blockage of gasses to impede flow. The whole system bolted right on in about 15mins, with no fighting for alignment or things not fitting right.

    I opted for the full Carbon Fiber exhaust and it along with the collector weighs a scant 6.75lbs!! I decided to weigh my stock exhaust once I had it off and it came out to 23.41lbs!! That's a HUGE weight savings. Not to mention it freed up the other side of the bike for an auxiliary fuel tank or storage box. In any case, very happy that this came along when it did as I wasn't very impressed with the current options out on the marketplace.

    Oh and yes...it sounds good too! Nice throaty rumble at idle with a good deep note on acceleration. It also comes with a pop-in decibel reducer if you want to bring the sound closer to stock as well.

Shipping Weight:
2.00 LBS
Calculated at checkout
Current Stock: