Aftermarket Assassins

10/14/2026

David Peraza taking home first place in his class this weekend on his AA big turbo E85 RZR! 💪🏼

09/21/2026

Text line down! Our phone provider is having known issues and is working on a solution. If you messaged us by text, note we have your message, but are not able to respond. We'll respond as soon as able. Thanks for you patience!

09/10/2026

Tearing into the 2027 Xpedition Numatix clutch! We’ve had our new Xped for a few weeks now and have a few hundred miles on the vehicle. Numatix works well to lower rpm in comfort mode. Longevity will be key.

These are clutched at 7800-8000rpm peak. We found no difference in dragy times between comfort or sport mode. Cruising rpm at 25mph is roughly 3000rpm difference and 1000rpm at 55mph when switching from sport to comfort. This is a drastic noise reduction.

We will create a smoother engagement setup as these are clunky. Well then have higher RPM clutch settings and lower RPM for even lower cruising rpm. Many results to come in the next few weeks!

08/24/2026

Another happy Xpedition Turbo customer!

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

08/18/2026

NEW WEBSITE INCOMING! Please note that we may have some small hiccups when we launch on 8/26.

After years on a platform that was too small and simple for our operation; we are upgrading our website! You'll get the same look/feel, but with better features. We've been hard at work to launch this new platform as soon as possible.

If you have an account on our current site, you will have to create a new one when the switch happens.

If you are an AA authorized dealer, please message us after creating your new account so we can properly set up your credentials. Thanks! -Mike

08/03/2026

2027 Polaris Models are out!

- 275hp Pro R BOOST Model with factory Turbo. The industries most powerful SxS to date! Can't wait to start playing with these as we know they have MAJOR potential.

- Xpedition with an air assisted driven clutch which uses mode switches to lower or raise overall RPM. Reliability of this air system is a question, but you know we will be after enhancing performance as we know the CVT and engine management in & out.

More to come! -Mike

07/23/2026

CF Moto Z10 ECU Tuning & S1 Clutching are live online! We gain a MASSIVE +50-56rwhp on pump gas with this platform as they are very detuned from the factory.

We have many months of development on this platform as the stock injector, and easy S1 clutch kit would be the biggest hit with most customers. We wanted to ensure we had the most time possible on this setup between dyno tuning, field tuning, Dragy acceleration results, and trail riding.

Exhaust, charge tubes, and more will be available in the next 4-8 weeks.

Click the links for a TON more information. Thanks! -Mike

https://aftermarketassassins.com/products/ols/categories/z10

07/22/2026

👀 the highest horsepower factory side by side to date? We’ll see 8/3

06/11/2026

Kawasaki apparently has the H2 recall fix available. A stronger movable sheave is certainly a good answer to the problems and should fix issues if done correctly. We'll keep an eye on things to see what changes with the new parts and how they work with our AA cover plate, weights, and spring.

So far we've logged many miles in the dunes, road, and trails without any issue, and in testing, spinning over 10,000 RPM.

We did also built a nice guard for our CVT cover, so we'll see how Kawi's stacks up compared to ours.

06/07/2026

We packed on the miles in Northern Minnesota this weekend near the north shore/sawtooth mountains. The Ridge Crew was a blast to drive and is very impressive for its class.