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 Stage 1 is engineered to optimize the performance of your Twin Cam 88 engine. This kit features a custom-designed slide that refines fuel atomization and sharpens throttle response. Experience improved power delivery and better fuel economy on your Harley-Davidson.
Why riders pick this
Custom-engineered slide for improved fuel atomization
Delivers sharper throttle response
Enhances power delivery on Twin Cam 88 engines
Contributes to better fuel economy
Designed for 2000-2006 Harley Twin Cam 88
Uncork the true potential of your carbureted Harley Twin Cam 88 with the Dynojet Thunderslide Kit Stage 1. This upgrade focuses on enhancing the critical interaction between your carburetor and engine, delivering a noticeable improvement in how your V-twin responds. The precision-engineered slide within this kit ensures a stronger metering signal, translating to more efficient combustion and a more engaging ride.
Sharpen Your Carburetor's Response
Custom-engineered slide design for optimal fuel delivery
Improves fuel atomization across the RPM range
Delivers increased throttle response for a more connected feel
Enhances overall power delivery on your Twin Cam 88
Contributes to better fuel economy through precise control
Optimized Performance for Twin Cam 88
This Stage 1 Thunderslide kit is a foundational upgrade for riders looking to get more out of their carbureted Twin Cam 88. It's designed for straightforward installation and complements other mild performance modifications, making it an excellent choice for riders who want to improve their bike's rideability without extensive engine work. Proper carburetor adjustment is recommended after installation to achieve peak performance.
Specifications
Brand: Dynojet
Manufacturer Part #: 8131
Length: 3.75 in
Width: 7.9 in
Height: 1.5 in
Weight: 0.34 lbs
Common questions
Will this kit fit my 2007 or newer Twin Cam?
No, this Dynojet Thunderslide Kit Stage 1 is specifically designed for 2000-2006 Twin Cam 88 engines. Newer Twin Cam models utilize a different fuel system.
Will I need to tune my carburetor after installing this kit?
Yes, installation of the Thunderslide kit may require carburetor adjustment for optimal performance. Dyno tuning is recommended to ensure your bike is running at its best.
Is this kit a bolt-on installation?
The kit replaces internal carburetor components. While it's designed to integrate with your existing carburetor, a basic understanding of carburetor disassembly and reassembly is beneficial for installation.
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
133-4016
WEIGHT
0.34 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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Jun 29, 2022
Great performance
I was having issues with performance and a backfire thru the carb. I installed this kit only took about an hour and it immediately solved my problems. Easy to install and seems to have quality parts. I would recommend this kit to anyone having the same issues from a stage 1 upgrade.
Dynojet Thunderslide Kit Stage 1 ...
$222.21
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