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Dynojet Thunder Slide with Jet Kit

10 Reviews

This product fits a variety of motorcycles. Please select yours so we can find the right part and guarantee fitment. Select A Motorcycle

Dynojet Thunder Slide with Jet Kit
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10 Reviews

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J&P Part: 400-646


Dynojet Thunder Slide with Jet Kit

• Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and mileage

• Unique set of lift holes moderate how the slide moves with respect to throttle position the faster the slide opens the quicker the throttle respons

• Kit also includes jets, needles, clip and other necessary parts for CV carbs

• Works well with stock or aftermarket air box and exhaust system

Made In The USA This product was proudly made in the USA

Important Product Notes

Product Specs

Manufacturer Part Number: 8131

Sold in Units: Kit


This product fits a variety of motorcycles. Please select yours so we can find the right part and guarantee fitment. Select A Motorcycle

Click (+) to view all compatible models

Harley-Davidson® Models

Dyna Low Rider Convertible FXDS-CONV : 2000
Dyna Low Rider FXDL : 2000–2005
Dyna Super Glide Custom FXDC : 2005
Dyna Super Glide FXD : 2000–2005
Dyna Super Glide Police FXDP : 2001–2004
Dyna Super Glide Sport FXDX : 2000–2005
Dyna Super Glide T-Sport FXDXT : 2001–2003
Dyna Wide Glide CVO FXDWG2 : 2001
Dyna Wide Glide CVO FXDWG3 : 2002
Dyna Wide Glide FXDWG : 2000–2005
Softail Deluxe FLSTN : 2006
Softail Deuce CVO FXSTDSE : 2003
Softail Deuce CVO FXSTDSE2 : 2004
Softail Deuce FXSTD : 2000–2006
Softail Fat Boy CVO FLSTFSE : 2005
Softail Fat Boy CVO FLSTFSE2 : 2006
Softail Fat Boy FLSTF : 2000–2006
Softail Heritage Classic FLSTC : 2000–2006
Softail Heritage FLST : 2000–2006
Softail Heritage Springer Classic FLSTSC : 2005–2006
Softail Heritage Springer FLSTS : 2000–2003
Softail Night Train FXSTB : 2000–2006
Softail Springer FXSTS : 2000–2006
Softail Standard EFI FXSTI : 2001
Softail Standard FXST : 2000–2006
Touring Electra Glide Classic CVO FLHTCSE : 2004
Touring Electra Glide Classic CVO FLHTCSE2 : 2005
Touring Electra Glide Classic FLHTC : 2000–2006
Touring Electra Glide Police FLHTP : 2000–2006
Touring Electra Glide Standard FLHT : 2000–2006
Touring Road Glide FLTR : 2000–2006
Touring Road King Custom FLHRS : 2004–2006
Touring Road King FLHR : 2000–2006
Touring Road King Police FLHP : 2000–2004
Touring Street Glide FLHX : 2006

Customer Reviews

Overall Rating:
5/5 based on 10 ratings

5 by

I am a technician in the automotive field and have tried many carb jet kits. The Dynojet Thunderslide [kit] is a great product. Easy instructions and it will definitely increase the speed of throttle response. Better performance through the entire power range.

5 by

This kit made a very noticeable improvement. Throttle response and acceleration are awesome. I have not measured mileage yet.

5 by

Usual Dynojet quality. Read the directions!

5 by

great addition to my carb. definatley worth the money and time. increased throttle response and mileage. jus installed new pipes so will have to readjust for that. will write back later with results.

5 by


5 by

Very impressed with this kit. Easy to install and very nice performance gains.

5 by

Very easy to install on my 2001 XL 1200c Sportster. Instruction was easy to understand :-) The bike have now a big pair of balls!

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Important Product Notes

Note: Not legal for sale or operation in the state of California.ΓΏ Check with the U.S. EPA and your respective state and local regulations to confirm emission compliance

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