Already have a full exhaust on your bike? You can still save $40 on our Norton Superbike Velocity Stack setup paired with our custom tuned Norton Race Spec ECU flash!
By far the best power and performance bang-for-the-buck upgrade for your Yamaha R3 / MT-03 is to install a top performing exhaust with our Velocity Stack setup and our Race Spec ECU Flash. Add 6-7 horsepower to your Yamaha R3 compared to stock!
*We recommend installing a block off plate at the same time as flashing the ECU or you will get some backfiring from the exhaust.
Full Exhaust, Norton Velocity Stack and ECU Flash Package Deal – Yamaha R3 / MT-03
From: $1,281.04$1,201.04
FREE SHIPPING on this item!
Already have a full exhaust on your bike? You can still save $40 on our Norton Superbike Velocity Stack setup paired with our custom tuned Norton Race Spec ECU flash!
By far the best power and performance bang-for-the-buck upgrade for your Yamaha R3 / MT-03 is to install a top performing exhaust with our Velocity Stack setup and our Race Spec ECU Flash. Add 6-7 horsepower to your Yamaha R3 compared to stock!
*We recommend installing a block off plate at the same time as flashing the ECU or you will get some backfiring from the exhaust.
OZ Racing, BST, and most Marchesini aftermarket wheels use a different bolt pattern from OEM for rear sprockets. 5 bolts, 10.5mm diameter, on a 100mm bolt circle with 76mm center hub diameter. Use these sprockets instead.
*(Marchesini wheels for Yamaha R3 use OEM sprockets)
*These sprockets are special order only, no returns.
OZ Racing, BST, and most Marchesini aftermarket wheels use a different bolt pattern from OEM for rear sprockets. 5 bolts, 10.5mm diameter, on a 100mm bolt circle with 76mm center hub diameter. Use these sprockets instead.
*(Marchesini wheels for Yamaha R3 use OEM sprockets)
*These sprockets are special order only, no returns.
OZ Racing, BST, and most Marchesini aftermarket wheels use a different bolt pattern from OEM for rear sprockets. 5 bolts, 10.5mm diameter, on a 100mm bolt circle with 76mm center hub diameter. Use these sprockets instead.
*(Marchesini wheels for Yamaha R3 use OEM sprockets)
*These sprockets are special order only, no returns.
*Transmission undercutting is a service to modify your OEM transmission. You must remove your transmission and ship it to us for undercutting service. We will inspect all gears upon dis-assembly and let you know if any gears should be replaced before undercutting. New spring clips may be required for re-assembly.
If you want to maximize the performance of your R3 without breaking the bank and the hassle of tuning, this is it. Please read these two articles to really see the power of the aRacer ECUs:
Norton Racing Over-Bored Throttle Body – Yamaha R3 / MT-03
From: $495.00
FREE SHIPPING on this item!
Once you place your order, we will contact you with information about sending in your OEM throttle body for core credit.
***When you send in your throttle body, please send it in just like the picture, except also remove the small black rubber grommets from where the injects mount. Please include your throttle cable mount.
Norton Racing Superbike Ported Head Kit (50hp) – Yamaha R3
From: $2,742.27
*Additional shipping charges apply to this item.
You must send us your OEM core cylinder head, throttle body, camshafts, and fuel pump to be modified or exchanged. Once you place your order, we’ll contact you with shipping information to send in your parts.
*Contact us first if you have a 2018 or newer international model bike.
*You will have to modify your OEM airbox to use this kit. See pictures of modified airbox to the left.
We recommend using the Graves Motorsports Works 2 full exhaust with this kit, but you will see similar significant gains with any high quality, full length, full system exhaust that uses a restrictor baffle in the end.
In order to maximize performance and reliability of this kit, we only recommend tuning this kit with the aRacer Super RC2 using our parameters.
Here’s the before and after comparison dyno graph on a 2017 Yamaha R3, keep in mind, this is all done with 91 pump gas, and if you want to run high performance race fuel, you could easily get another 2hp from this kit:
*If you would like to run this Superbike kit with high performance race fuel, we recommend installing CP Carrillo connecting rods for added strength to ensure the longevity of your motor.
520 Chain and Sprocket Kits for Street/Track Use – Yamaha R3
From: $123.99$112.00
FREE SHIPPING on this item!
Replacing your OEM sprockets to change the final drive ratio of your motorcycle is a great way customize your bike’s performance for you. By using a shorter drive ratio, you can dramatically increase acceleration at the expense of losing a little bit of top speed, making the bike a lot more fun to ride!
*Available with lightweight aluminum rear sprockets, or longer lasting steel rear sprockets.
The R3 OEM chain pitch is 520 and length is 112 links and the OEM sprocket sizes are 14 tooth in the front and 43 tooth in the rear.
Use the following reference when selecting your chain length:
Norton Racing Race Spec ECU Flash for OEM ECU – Yamaha R3 / MT-03
$295.00
FREE SHIPPING on this item!
Current turnaround time to flash your ECU is typically 1-3 business days.
***At this time, we are unable to flash ECUs with a part number beginning with B02. These seem to come from bikes with ABS, and we are still unable to flash them to our current race spec. However, you can use an ECU from a non-ABS bike (part number begins with 2MS) in a bike with ABS and the ABS will continue to work like normal. This has been tested.
Once you place your order, we’ll contact you with shipping information to send in your ECU.
If you have already purchased an FTECU kit and have a license for your ECU, please email us at sales@norton-motorsports.com for a discounted price to use your license.
