Dynojet Thunderslide Kit - XL1200C/R Carbureted - Harley Sportster
About Dynojet
Dynojet builds the dynamometers most performance shops tune on, along with the Power Vision and Power Commander tuning hardware riders use to actually take advantage of an intake and exhaust upgrade. Nothing else in this catalog does more to turn bolt-on parts into measurable horsepower.
The Dynojet Thunderslide Kit for 2004-2006 Sportster 1200C/R models is engineered to significantly upgrade your V-twin's intake system. Featuring a custom-machined slide, this kit increases fuel atomization and sharpens throttle response. Riders will experience improved power delivery and better fuel economy through more precise needle control and a stronger enrichment signal.
Why riders pick this
- Custom-machined slide geometry
- Increased fuel atomization
- Improved throttle response and power
- Better fuel economy
- Optimizes factory carburetor performance
Unlock a new level of performance from your 2004-2006 Sportster 1200C or 1200R with the Dynojet Thunderslide Kit. This carefully designed component replaces the factory carburetor slide, optimizing the air-fuel mixture for a more complete and efficient burn. The result is a more immediate and satisfying connection between your wrist and the rear wheel.
Sharpen Your Sportster's Response
- Custom-machined slide geometry for optimal performance
- Increased fuel atomization for a more efficient burn
- Improved throttle response and power output
- Delivers better fuel economy
- Designed for 2004-2006 Sportster 1200C and 1200R models
Elevate Your Riding Experience
This Thunderslide kit is a straightforward upgrade that makes a tangible difference in the rideability of your Sportster. It's an excellent choice for riders seeking to maximize the performance of their carbureted V-twin. Remember to check local emissions regulations, as this product is not street-legal in all areas.
Specifications
- Brand: Dynojet
- Manufacturer Part #: 8136
- Length: 3.75 in
- Width: 7.9 in
- Height: 1.5 in
- Weight: 0.38 lbs
Common questions
What exactly does the Dynojet Thunderslide kit do for my Sportster?
It replaces the factory carburetor slide with a custom-machined design that improves fuel atomization, leading to better throttle response, increased power output, and enhanced fuel economy.
Will this kit fit my 2003 or 2007 Sportster?
No, this specific part number is designed for 2004-2006 Sportster 1200C and 1200R models only. Different model years require their own specific Thunderslide kit.
Is this kit legal for installation in all states?
This kit is not street-legal in California. Please check your state and local emissions regulations before installation, as some regions have restrictions on aftermarket carburetor modifications.
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 | Dynojet |
| TYPE | Intake/Carb/Fuel System |
| SKU | 133-4013 |
| WEIGHT | 0.38 lb |
