Thumper Racing Insert

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ThumperRacing

http://thumperracing.net/

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Thumper Racing Exhaust Insert - WR400F/426F/450F - ThumperTalk

https://thumpertalk.com/forums/topic/2687-thumper-racing-exhaust-insert/

I went to a junk yard to get a few parts, and didnt really even notice it until I was about a mile away... Wait a sec, this thing wasnt that loud before. Someone yanked my thumper racing insert while I was at the junkyard. Anyway. I was thinking of just making my own. I glanced at it before and i...

Big Bore Kits - ThumperRacing

https://www.thumperracing.net/index.php?route=product/category&path=37

XR400R to 440 - ThumperRacing

https://www.thumperracing.net/index.php?route=product/product&product_id=69

Price: $396.00. Our Big Bore Kit takes the XR400R up to a 440. We have been testing the XR400 since its release. First, we developed the accessories to make the bike handle and work better, which means it's more fun to ride. But you, our customers, wanted MORE out of the motor!

thumper racing exhaust insert for 96 xr250r - XR250R & XR400R

https://www.thumpertalk.com/forums/topic/1406883-thumper-racing-exhaust-insert-for-96-xr250r/

are any of you using the thumper racing exhaust inserts on your 96-04 xr250?

XR650L to 675 - ThumperRacing

https://www.thumperracing.net/index.php?route=product/product&product_id=67

Price: $431.00. Honda stepped up the performance for dual sport machines with the XR650L in 1993, but like most products, there were compromises made for production. After extensive testing on the bike, we feel it needs modification. Our kits will increase power and reduce weight. This is a dual purpose motorcycle, and we must keep it that way ...

450/525-570 - ThumperRacing

https://www.thumperracing.net/index.php?route=product/product&product_id=113

A KTM stroker crank can be added to any of the ktm kits which will turn the 540 kit into a 576cc motor, the 550 kit into a 588cc motor, and the 570 kit into a 600cc and for the rider that wants it all, we have a 640 fire breathing monster option (please call for specifics) The stroker crank tends to give the RFS motors a heavy feeling.

Vortip vs. Thumper Racing Insert for XR400 - DirtRider

https://dirtrider.net/forums3/threads/vortip-vs-thumper-racing-insert-for-xr400.34739/

Vortip vs. Thumper Racing Insert for XR400 E E-Ticket ~SPONSOR~ Dec 16, 2000 735 0 Jan 21, 2002 #1 I've been running my '97 XR400 with the stock exhaust, spark arrestor screen still in, and the noise diffuser pulled out. Ran a LOT better after the noise diffuser was pulled, airbox snorkel removed, TwinAir filter installed, and carb rejetted.

Thump RRR Racing Billet Aluminum Belt Tensioners New Jersey, …

https://www.thumpracing.com/index.htm

Specifically designed for Mustangs & other Ford high performance cars THE NAME YOU CAN TRUST Heavy Duty Construction - 50% Thicker than stock tensioners Allows for the option of using an 8 Rib set up or a 6 Rib set up Keeps the belt from moving, slipping increasing it's lifetime Test your car for high performance with peace of mind

Thumper Racing Kit - Abused | ATV Rider

https://www.atvrider.com/thumper-racing-kit-abused/

Since the '06 Rincon has EFI (electric fuel injection), the Thumper kit contains a Moose Racing Power Commander system that plugs into your laptop for the purpose of reprogramming the mapping and fine-tuning your fuel injection. No reason to wig out: Hazel claims this system doesn't require a rocket scientist to dial in.

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