DK Custom Products Thunder Torque Inserts for 2" Diameter & Larger Slip-Ons - Pair
About DK Custom Products
DK Custom Products parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every DK Custom Products item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.
DK Custom Products Thunder Torque Inserts are tuning inserts that bolt into the end of slip-on mufflers on V-twin motorcycles. They are engineered to increase low and mid-range torque while providing the flexibility to adjust your exhaust tone.
Why riders pick this
- Bolts into slip-on baffle hole, no welding
- Stainless steel 5/16" studs, high-temp powder coat
- Increases low and mid-range torque
- Adjustable sound volume and tone
- All mounting hardware included
Transform the performance and sound of your Harley-Davidson or Indian Motorcycle with a pair of DK Custom Products Thunder Torque Inserts. These patented inserts are meticulously crafted in the USA to enhance exhaust gas velocity and inertial scavenging, a critical factor in building more usable low- and mid-range torque. You'll feel the difference with improved throttle response and stronger pulling power.
Dynamic Performance and Sound
- Bolts directly into slip-on muffler baffle hole – no welding required
- Features durable stainless steel 5/16" studs with a high-temp powder coat finish
- Significantly increases low and mid-range torque output
- Allows for adjustable sound volume and tone to fine-tune your exhaust note
- Leverages patented technology for increased exhaust gas velocity
Simple and Effective Upgrade
Designed for V-twin motorcycles with 2-inch diameter or larger slip-on mufflers, these Thunder Torque Inserts are a true bolt-on modification. All necessary mounting hardware is included, ensuring a straightforward and quick installation process. You can enhance your bike's power delivery and customize its acoustic signature without complex procedures, making it an ideal upgrade for any rider seeking improved performance.
Specifications
- Brand: DK Custom Products
- Manufacturer Part #: DK-TTI-158W
- Length: 8 in
- Width: 5 in
- Height: 1 in
- Weight: 0.31 lbs
Common questions
Do I need to remove my muffler to install these?
No, the inserts bolt into the existing baffle bolt hole at the muffler end, making it a true bolt-on modification with an easy installation process.
Will this work on any slip-on muffler?
These inserts are designed for V-twin motorcycles with 2-inch diameter or larger slip-on mufflers that have an existing baffle bolt hole. Please check your muffler's design for compatibility.
What kind of performance gains can I expect?
The Thunder Torque Inserts are engineered to increase low and mid-range torque by optimizing exhaust gas velocity and scavenging, providing a noticeable improvement in pulling power.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | DK Custom Products |
| TYPE | Hardware/Fasteners/Fittings |
| SKU | 880-3046 |
| WEIGHT | 0.31 lb |
