Our BMS Racing Waterbox delivers increased horsepower and performance by reducing exhaust restriction and back pressure. This Waterbox will increase the low-end power and mid-range pull on your Yamaha 1.8L watercraft. High-strength aluminum construction will survive backfires and meltdowns. Powder coated to prevent corrosion. This is must for and modified 1.8L engine.
Features:
Increased horsepower on modified 1.8L watercraft!
Domed end caps
Ribbed tube flanges for reliable coupler retention.
Powder coasted top prevent corrosion
Increase in HP on modified engines with significant torque gains as well
FITS:
All Yamaha 1.8L SVHO, SHO, and HO model skis.
WORX RACING - Seadoo 2021+ RXP-X 300 Rear Exhaust Kit
WR04074
Regular price
$399.00
Save $-399.00
🔥 The Ultimate Exhaust Upgrade for Your RXP-X
Ready to give your RXP-X the sound it deserves? TheWorx Rear Exhaust Kitfor2021+ Sea-Doo RXP-Xis here to level up your ski’s tone and attitude.
Engineered for performance and built to last, this kit delivers adeep, aggressive exhaust notewith a slight bump in performance to match.
✅Billet Anodised Aluminium Outlet– Built tough, looks clean, and features our signature Worx logo ✅High-Thread Silicone Hose– Designed to absorb drone and vibration for a smoother, deeper sound ✅Sleek Rear-End Finish– Subtle yet unmistakably performance-driven ✅Complete Bolt-On Kit– Everything you need to get your ski sounding grunty, smooth, and ready to turn heads
Whether you're carving buoys or cruising the bay, this is the exhaust your RXP-X was born to run.
Heads up!All aftermarket exhausts (yep, even ours) are significantly louder than stock.
If you’re keen to turn heads and sound like a total weapon, this is the upgrade for you.
If your idea of fun is peace, quiet, and hearing your own thoughts... stock’s calling. Probably with a cup of chamomile.
Looking for that deep, clean exhaust note without going over the top? The Worx Rear Exhaust Kit is the upgrade your ski has been waiting for.
Designed to suit 2020+ GTR, 2018+ RXTX, and 2020+ GTX 300 models, this kit delivers a refined, aggressive tone and a noticeable boost in performance—without sounding obnoxious.
? Premium 2.5" Billet Outlet – Made from bulletproof anodised aluminium for a clean, factory-style finish ? Signature Worx Styling – Subtle but tough, with the laser-etched Worx logo you’ll recognize anywhere ? High-Thread Silicone Hose – Reduces drone and absorbs vibration for a smoother, deeper sound ? Complete Kit – Includes everything you need for a smooth install and a grunty, throaty exhaust note
Built for riders who want more attitude and better performance—without compromising style.
?? Heads Up: Yes, this exhaust will make your ski louder. If quiet, romantic cruises are your thing—stick with stock. But if you want to drown out the missus... yeah, this one’s for you. ??
Stock Exhaust(00:00-00:20) vs. WorxExhaust (00:21-00:41)
Instructions
Fitment
2018-2020 Sea-Doo
2018-2020 Sea-Doo GTR 230, RXTX
SEADOO RXPX 300 & GTR/GTX 17+ REAR EXHAUST KIT
WR04039
Regular price
$359.00
Save $-359.00
Take your Sea-Doo to the next level with aggressive sound and performance.
? 2.5" Billet Exhaust Outlet – Precision-machined and anodised for durability and style ? Moulded Silicone Hose – Designed to eliminate resonance for a deep, throaty exhaust note ? OEM Block-Off Plug Included – Comes complete with standard outlet block-off ? Deletes Restrictive Baffles – Frees up your exhaust flow for improved performance ? Built for Power – Perfect for both recreational riders and racers alike ? Fitment – Suits Sea-Doo RXPX 300 and GTR 230 (2017+)
?? Note: For all other Sea-Doo 4Tec models (non-300), we recommend the WR04013 Exhaust Kit instead.
Disclaimer:Aftermarket exhausts (yep, including ours) are… wait for it…LOUD. If you like to make an entrance and be heard before you’re seen, you’re in the right place.
If your idea of fun is scenic detours and deep chats about fuel economy… stock’s probably more your speed ??
Instructions
Seadoo Spark Rear Dual Exhaust Kit
WR04004-IT
Regular price
$599.00
Save $-599.00
Meet the first ever Dual Rear Exhaust Kit for the Sea-Doo Spark. Built for riders who want performance, style, and a soundtrack that turns heads.
Our high-performance silicone hose, gives you unbeatable durability, heat resistance, and a perfect fit, without the extra drone that can accompany Aluminium piped exhausts. This setup removes the restrictive OEM sound box, unlocking sharper throttle response, better flow, and pure riding satisfaction.
And the sound? Let’s just say it is louder than your nana’s snoring, so if you are not into making noise, this is not for you. But if you want your Spark to growl like it means business, you have just found your upgrade.
Features and Benefits:
First ever dual rear exhaust designed specifically for the Sea-Doo Spark
High-performance silicone couplers for flexibility, heat resistance, and long-lasting durability
Removes OEM sound box to reduce back pressure and improve throttle response
Deep, aggressive exhaust note that commands attention on the water
Precision fitment with all hardware included for easy installation
Stylish dual outlet design to give your Spark a race-ready look
Easy to install. Built to last. Guaranteed to make waves.
Warning:May cause excessive grinning and neighbour complaints.
Seadoo Spark Exhaust Kit
WR04004
Regular price
$299.00
Save $-299.00
Want your Spark to sound as good as it rides? Ditch the restrictive stock baffle and let your engine breathe with the Worx Racing Performance Exhaust Kit. More power, better throttle response, and a deep, throaty exhaust note that turns heads. Plus, that billet anodized rear exhaust outlet gives your ski a serious performance look, because fast should look fast.
NOW WITH RED INTERIOR! Improved durability and performance, because we know you like to push limits.
? More Power, More Noise – Improved exhaust flow for better throttle response across the rev range. ? Lightweight & Durable – Moulded silicone hose with new red interior for extra strength and longevity. ? Performance Look – Billet anodized rear exhaust outlet screams race-ready. ? Easy Install – Comes with all the hardware you need, no headaches, just horsepower. ? Fits 2-Seater Sparks – (DOES NOT FIT 3-SEATER MODELS. For that, check out the WR04008).
Bolt it on. Open it up. Ride harder.
Heads up!All aftermarket exhausts (yep, even ours) are significantly louder than stock.
If you’re keen to turn heads and sound like a total weapon, this is the upgrade for you.
If your idea of fun is peace, quiet, and hearing your own thoughts... stock’s calling. Probably with a cup of chamomile.
