Cycle News Staff | January 21, 2023
Introducing Yamaha YZF-R7 kit parts from Yoshimura R&D of America. Yoshimura’s latest line of kit parts for Yamaha YZF-R7 models include key components that not only give the R7 more horsepower, but also provide it with the competitive edge it needs when lining up on the grid.
These products, designed for closed-course competition use only, were developed by Yoshimura R&D while building #ProjectR7 piloted by Ari Henning and tested by 2022 MotoAmerica Twins Cup Champion Blake Davis, and each of the kits listed below are legal for use in MotoAmerica Twins Cup class.
VIDEO | Yoshimura’s #ProjectR7 Races Laguna Seca
July 13, 2022: It’s been about 9 months in the making and it was time for #projectr7 to take to the race grid in full dress.
Yoshimura R&D Yamaha YZF-R7 Kit Parts
Here are a few of the kits now available, with descriptions and photos provided by Yoshimura:
Yoshimura Yamaha YZF-R7 AT2 Race Series Titanium Race Series Full Exhaust
(2022-23 Yamaha R7, 2017-22 MT-07 AT2 Race Series Exhaust FS TI/TI/CF)
MSRP: $1399
P/N 13720PP720
When it came to crafting a special race exhaust for the Yamaha R7, we pulled out all the stops. Created with premium alloy material, then prototype after prototype, until we reached the final test system. On a stock engine with no mods and 91-octane pump fuel, this new system creates +6.2% max HP and +2.7% max torque. This system is designed to create even more performance with motor work and our airbox so the gains we publish are just the start of a powerful package.
Losing over 11 pounds from the stock system, our AT2 is ready to make your R7 move! The design of the AT2 tucks nicely under the lower cowling to keep it away from harms way as much as possible.
Dyno chart: stock engine with AT2 Race Series titanium exhaust
Product Details:
- Full titanium construction made with premium titanium alloy from Japan
- Saves over 11 lbs. from the stock OEM exhaust system (stock full system 17.1 lbs., AT2 titanium full system 5.8 lbs.)
- Includes M18 lambda-sensor bungs on each header leg and at the tailpipe
- Works with stock bike, but designed for highly modified and tuned race engines
- Optional sound insert kit available for -4dB if required
Yoshimura Yamaha YZF-R7 Airbox Kit
(2022-23 Yamaha R7, 2018-20 MT-07 Airbox Kit)
MSRP: $499
P/N 750BG137200
While testing and developing the Yamaha R7 airbox, we found that the stock configuration doesn’t allow near enough near enough air to feed even the stock configuration for racing. Enter the new Yoshimura Airbox Kit.
This kit single-handedly increases performance on a stock engine giving it huge gains! In fact by just adding our airbox, you can expect 8.5% increase in max HP and 4.8% increase in max torque! Add our AT2 Race Series system and the performance really starts to climb.
Dyno chart: stock engine/stock exhaust with airbox only.
Dyno chart: stock engine with airbox and AT2 Race Series titanium exhaust
Product Details:
- All-aluminum construction, black hard-anodize finish with laser-etched logo
- 1/2 lb lighter than OEM airbox assembly
- Direct replacement for OEM airbox (bolt-on installation)
- Free-flowing foam filter element made by Uni Filter
- Foam filter is fully serviceable and can be oiled if desired. Any foam-filter cleaner or oil can be used
- Replacement filter is available
- Retains OEM breather and drain pipe connection
- Mounts directly to throttle bodies and engine case; no frame mounting
- Includes debris shield on the rear portion to help keep filter clean
- Fully compatible with Yoshimura Subframe and Linkage Kit
- No tuning required
- Kit comes with all components necessary, no modification needed
Yoshimura Yamaha YZF-R7 Swingarm Pivot Kit
(2022-23 Yamaha R7 Swingarm Pivot Kit)
MSRP: $649
P/N 450BG137200
Optimizing the Yamaha R7’s chassis for the increased speeds and lean angles of racing is extremely important: millimeters count. Our Swingarm Pivot Kit gets the Yamaha R7 pointed in the right direction and helps keep it there giving the rider confidence even in turns where the grip is marginal.
By flipping the two pivot inserts, the racers can increase or decrease by 1.5mm. That may not seem like a lot, but the changes are dramatic, enough to make the R7 feel like the podium contender it is! When combined with our Suspension Link part #400BG137200 the two components enhance the handling of the R7 perfectly!
Product Details:
- 6061-T6 billet aluminum, black anodized with laser-etched logo
- Allows swingarm pivot to be +1.5mm or -1.5mm from OEM position to adjust swingarm angle
- Works with Yoshimura Linkage Kit to maximize tire performance, but can be used independently
- Can be used at OEM base position by using OEM bushings
- Retains OEM rearset, kickstand, and fairing mounts
- No net weight increase over OEM
Yoshimura Yamaha YZF-R7 Aluminum Subframe Kit
(2022-23 Yamaha R7 Aluminum Subframe Kit)
MSRP: $699
P/N 900BG137200
If you’re serious about racing the Yamaha R7, Yoshimura’s new aluminum subframe is a must-have. First, it carries a weight savings of over 4 pounds over the stock configuration. Next, this subframe includes and aluminum battery and wiring tray to mount your battery and protect your wiring harness from tire debris.
In the event of a crash or components get damaged, we carry all of the items you would need so you can repair your machine and get back out onto the grid for your next race. This unit requires a skilled installer!
Product Details:
- All-aluminum construction with flat-black powdercoat finish
- 4 lbs. lighter than the stock OEM subframe
- Requires cutting off stock subframe
- Alignment tool and 3D printed cutting templates included
- Works with stock or Yoshimura Airbox
- Installation guidelines are supplied
- Designed for both Hotbodies and Sharkskinz race bodywork. Does not include OEM mounting points.
- Compatible with OEM battery and all electronics
- Accommodates needed clearance for remote reservoir shock with Yoshimura Linkage Kit
- Retains OEM seat base mounting
- Rear-brake reservoir relocation required
- All component parts are available for crash replacement
Yoshimura Yamaha YZF-R7 Suspension Linkage Kit
(2022-23 Yamaha R7 Suspension Linkage Kit)
MSRP: $549
P/N 400BG137200
OEM linkage is designed for street and two-up riding, low ratio, high progression. Engineering the Yamaha R7 to be more stable at the higher speeds for racing is crucial. So we enlisted a world-renowned suspension/chassis engineer to get the R7 right for racing. Our suspension link system works by modifying the linkage ratio and progression with a higher ratio and adds more linear progression. This set up is designed to work well with the stock OEM R7 front end. This link is designed for enthusiast track days and professional racing. When combined with Yoshimura Swingarm Pivot Kit part #400BG137200, above benefits can be maximized even further.
Product Details:
- 6061-T6 billet aluminum, black anodized with laser-etched logo
- Improves rear-shock efficiency
- Reduces rear-tire aggression for increased tire life
- Includes OEM Yamaha R7 bearings, seals, hardware, and 3D printed spacers installed
- Fully compatible with Yoshimura Subframe Kit part #900BG137200
- Requires dual eyelet shock, 298.5mm eye-to-eye shock recommended
- Base linkage setup designed to work well with OEM R7 front suspension geometry as starting point
- No net weight increase over OEM
Yoshimura Suspension Link progression curve ( blue ) and OEM link (grey)
Yoshimura Yamaha YZF-R7 Camshafts
(2022-23 Yamaha R7 Camshaft Kit ST-2M)
MSRP: $1459
P/N 700XX137200
Camshafts are the heart of any engine and is where tuning started for us. In 1954, Hideo “Pops” Yoshimura was grinding cams by hand. A lot of time has passed since then, one thing has not… passion. Today, Yoshimura cams are created in Japan from a special steel alloy billet and is just what the CP2 engine needs to make more grunt.
Installer should be familiar with engine building, these are not drop-in replacement! Cams must be degreed during installation. Yoshimura will offer complete engine build services for the Yamaha R7.
Dyno chart: stock engine vs. full race tune with cams.
Product Details:
- Full-billet intake and exhaust cam, made by Yoshimura Japan
- Full-billet construction offers increase durability and quality over OEM or regrind options
- Intake lift 9.60mm / duration 250 degrees
- Exhaust lift 8.35mm / duration 246 degrees
- Includes matching set of valve springs
- Uses OEM cam sprockets
- NOT decomp compatible, may require high power lithium battery for easy starting
- Requires aftermarket pistons for increased valve lift
For more information and to see other Yoshimura Yamaha YZF-R7 kits, visit www.yoshimura-rd.com
