RPM Kawasaki H2 Big Mouth Resonated Cat Delete Mid Pipe
RPM SxS Kawasaki Teryx H2 Big Mouth Muffler Replacement w/ 6" Resonator With many dyno comparisons, changes...
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RPM SxS Kawasaki Teryx H2 Big Mouth Muffler Replacement w/ 6" Resonator
With many dyno comparisons, changes to tubing size and bends, we've landed here on the perfect OEM muffler replacement with integrated resonator. We added a 6" resonator for maximum flow efficiency and the smoothest possible performance, while significantly reducing rasp and unwanted noise from the exhaust tone. A slight increase to 50mm tubing created the ideal exhaust flow balance leading to the factory rear muffler.
This is a true direct replacement for the primary OEM muffler. Instead of a simple straight pipe or crude delete, we engineered a high-flow 6" resonator right where it delivers the most benefit.
When installed, the resonator knocks down the noise for a much quieter, more refined tone. You still get a deep, aggressive roar and strong power delivery when you want it, without the constant rasp or drone of typical straight pipe deletes.
It mounts using the factory mounting brackets, factory-style gaskets, and factory hardware. 100% bolt-on with zero cutting, welding, or modifications required. No tuning needed either. It installs exactly like the stock muffler.
Built from high quality stainless steel with precision TIG welding for maximum durability and flow. This design unlocks real performance gains on a stock tune while reducing heat radiation compared to the stock muffler. Add a tune and the gains become even more phenomenal.
We've included a second 18mm O2 bung for easy dyno work or wideband data logging, while keeping the factory O2 sensor location fully intact for normal operation. A muffler side gasket is included. We recommend replacing the header-side gasket at the same time (not required).
Key Features & Benefits
- Direct replacement for the primary OEM muffler
- High-flow 6" integrated resonator for smart sound control
- Slight 50mm tubing increase for ideal flow to the factory rear muffler
- Uses all factory mounting brackets, gaskets, and hardware
- No tuning, no modifications, no cutting required
- Retains factory O2 bung + second 18mm O2 bung for dyno/data logging
- Precision TIG welded stainless steel construction
- Reduces exhaust heat radiation
Exhaust Comparison
Power · Sound · Weight
| Configuration | Peak HP | Gain | dB @ 4k | dB w/ E-Valve Open @ 4k | Weight | Savings |
|---|---|---|---|---|---|---|
| Stock | 213.5 | Baseline | 92 | — | 48.9 lb | — |
| RPM Carbon Fiber Intake & Tune | 224.70+11.2 | +5% | 92 | — | 48.9 lb | — |
| Big Mouth E-ValvePre-Muffler Replacement w/ 6" Resonator | 229.53 +16.0 | +7% | 103.7 | 114.3 | 27.5 lb | −21.4 lb |
| 3/4 Exhaust2.5" Mid Pipe + Chambered Muffler | 231.70+18.1 | +9% | 104.8 | 114.3 | 33.6 lb | −15.3 lb |
| 2.5" Chambered Full ExhaustPopular | 236.64 +23.1 | +11% | 105.7 | 113.9 | 27.9 lb | −21.0 lb |
| 2.5" Dual Sport Full Exhaust | 241.24+27.7 | +13% MAX | 104.6 | 117.6 | 30.6 lb | −18.3 lb |
Note: All exhaust data is shown with a RPM carbon fiber intake & tune
Compatibility
This part is compatible with 2 vehicle(s)
| Year | Make | Model | Trim |
|---|---|---|---|
| 2026 | Kawasaki | Teryx H2 | 4 Seat |
| 2026 | Kawasaki | Teryx H2 | 5 Seat |
About Domestic Shipments (U.S.)
Please allow 3–7 business days for shipping. We only ship to the lower 48 states.
On some items, our live inventory may be depleted from previous days’ sales. In these cases, we may drop ship the item once it becomes available. If inventory is not in stock at the time of fulfillment, ATU will notify you with a resolution regarding backorder status.
Please be advised that ATU ships from over 10 warehouses across the U.S. In some cases, items may be drop shipped to help speed up delivery times. On heavily discounted parts (i.e. differentials), tracking information may not be provided.
ATU Shipping Daily Cutoff: 3:30 PM (Central Time)
Shipping Support
Our site is always available whenever you want to upgrade your ride. Orders can be placed 24/7/365.
Our passionate customer support team is happy to help with any questions or concerns.
Email: orders@allthingzutv.com
Phone: 256-686-4888
Returns
For returns, please use the link at the top of this page to access our return form. Download, print, and fill out the form completely, then ship it in the same box as the product you are returning.
- Make sure you are logged in to your ATU account.
- Locate the account symbol in the top-right corner next to the search bar.
- Scroll within the dropdown menu and select Orders.
- Find the order you wish to return and click Return Items, located beneath the package status (should read SHIPPED).
- On the return page, select the reason for the return and the desired return action. Add any relevant comments and ensure the quantity of returned items is correct.
- Once submitted, an email notification will be sent to sales@allthingzutv.com.
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