Dynojet Thunderslide Kit - `2004-2006 Xl1200c/R — Harley-Davidson Sportster 1200 Custom, Roadster, Sportster 883 (2004-2006)

Dynojet Thunderslide Kit for 2004-2006 Sportster 1200C/R, featuring a custom-machined slide that increases fuel atomization and throttle response. Improves power delivery and fuel economy through precise needle control and a stronger enrichment signal.

Features

• Custom-machined slide geometry
• Increased fuel atomization
• Improved throttle response and power
• Better fuel economy

Specifications

• Brand: Dynojet
• Manufacturer Part #: 8136
• Length: 3.75 in
• Width: 7.9 in
• Height: 1.5 in
• Weight: 0.38 lbs

Fitment

Fits 2004-2006 Harley-Davidson Sportster 1200C and 1200R models. Not street-legal in California — check your local emissions regulations before installation.

Frequently Asked Questions

What does the Thunderslide kit do?

It replaces the factory carb slide with a custom-machined design that improves fuel atomization, throttle response, and power output.

Will this kit work on my 2003 or 2007 Sportster?

This part number is specific to 2004-2006 Sportster 1200C/R. Different model years require their own Thunderslide kit.

Is this legal to install on my bike?

This kit is not street-legal in California. Check your state and local emissions laws before purchase and installation.

Do I need a tuner with this kit?

A fuel tuner or jetting adjustment may be needed to optimize performance — consult Dynojet's installation guide for your specific setup.