ZX6r 13-20

All power products developed and tested on the Low Inertia EC997 Eddy Current Dynamometer using the no BS - consistent from dyno to dyno

True Rear Wheel HP Scale
So good - it was
F-USA and ASRA's Official Dyno for years

Attack Racing's ex AMA Formula Extreme zx6r.
How much True HP??


ECU reflashing
 Remove / modify speed limiters
Modify ignition timing
Unleash your topend
Boost low and mid power
http://image2.cccme.org.cn/i_supply/2010/7/6/2010122602022725549_125637846.jpg Hybrid Ceramic Wheel Bearing kit
Factory Pro's
(save that gearbox from damage caused by missed shifts)
EVO Shift STAR kit
Factory Pro
Superflare Billet Velocity Stacks

hand tools, 45 minutes, 2% to 3% power increase


Hybrid Ceramic Wheel Bearing kit

intro special

reg $375

5 bearing kit
front and rear wheel + sprocket carrier
pn: BE-HYCER-K39-13-20
1. Choose your shipping method

Hybrid Ceramic Wheel  Bearing kit

5 bearing set

2 front wheel bearings
2 rear wheel bearings
1 sprocket carrier bearing

Tough steel races and almost  friction free ceramic balls.

Bearings are pregreased and ready to use.
Bearings have rubber seals that are easy to remove if desired.

Unleash your bike's power and control

Pro Power
Race  ECU Reflash
by Factory Pro

  • zx6r specific Tuning
    • adjust IAP /  MAP  Fuel Maps for better race part throttle
    • adjust TPS Fuel Maps for better race power
    • adjust Ignition Maps fr more race torque
    • Secondary Throttle Plate (STP) Opening Maps
  • Settings
    • Adjust RPM Limit settings
    • Adjust fan switch temperatures
  • Disable
    • Disable 186 Top Speed Limiter (just to see if you were paying attention)
    • Disable Decel Fuel Cut out for racing
    • Disable Stock O2 Sensor for racing
    • Disable Exhaust Valve (exup) for racing
    • Disable PAIR (exhaust air injection) valve for racing
    • Disable EVAP valve for racing
  • Retain

  • Specialties
    • Factory Pro Power  mapping is specially designed to be smooth at teeny throttle opening at high rpm -  for best traction and lap times. - without sacrificing high rpm power.
ECU  reflashing   ZX6r

It's  EASY "unleash" true hp on top for your trackday or AFM zx6r.
It's HARD to make all throttle positions and rpms feel smooth as silk.

It takes years of track and tuning experience, a dyno that reads out "engine smoothness" and hp in realtime.


Our race map

disable o2, PAIR, EVAP and PAIR lights, Decel Fuel Cut out
elegantly massaged ign and Secondary tables
modded MAP and TPS fuel tables
Set fan control to 5c lower 100/105

Silky smooth part throttle power (you shouldn't have to rely on traction control)
Awesome midrange
Better high rpm than simplistic "unrestricted" ecu
Better, more linear TC operation
Retain TC and Power settings (as applicable)
"On the fly" Power and TC settings (as applicable)

Part throttle operation specifically tuned for trackday and roadrace
Full throttle power is set for Best Power for Drag Race
Best of both worlds.
25 years of EFI tuning experience

$425 / mail in

Feedback on 09 zx6r

Dude! Amazing! I dropped 2 seconds off my personal best and I can feel there's more speed in it still. Super smooth when I get on the gas and so much more composed on corner entry because of Ecu flash and the new detent Spring. Thanks so much!
Chris Schaefer July 2016


(415) 883-5620

The zx6ri non-CA Map

mail in /  1 to 2 day / mail back

Factory Pro Power Flash
1. Choose your shipping method


Transmission, Shift improvement




FITS 07-19
(this kit includes k39 STAR only -  replaces oe 13145-0029 star)

1. Choose your shipping method


Shift Star

Shifts 5 to 10 ms quicker -
decreases shock loading on gear teeth from missed shifts.

No case splitting to install. Must remove and replace the clutch basket to replace the star. An impact wrench makes the job easy.
1-2 hours to install.

Use with spring and arm.

Positive feedback rating    The shift star works great.  I mean the Kawis have always been a bear to shift.  And the EVO cleared that up.  Love it -
Thanks -  Douglas  Isham  …


Easier shifting for street and track
Quicker shifting for street and track
Virtually eliminates gear breaking missed shifts

Helps protect the 6r's shift fork and transmission gears from shock damage during missed shifts under hard use.

Installs under the clutch basket, no case splitting required.
Suggest using an air wrench to remove the clutch nut.
 Takes about 1 to 2 hours to install, depending on speed.....

This kit includes STAR  but not a clutch cover gasket.

F-Pro Shift Spring


pn: z95-k012-0490

(fits 07-19)
(replaces oe 92145-0717 spring)

1. Choose your shipping method



F-Pro Shift Spring

Decreases shift kill duration 3-5ms

Use with Star and arm.


Hybrid Ceramic
Microbearing Detent Arm  $89.95

1. Choose your shipping method


Hybrid Ceramic Microbearing Detent Arm

Tough 52100 Steel Races, si3n4 ceramic balls, reinforced nylon retainers

Decreases shift kill duration another 3-5ms

Use with Shift Star and F-Pro Shift Spring

Superflare Velocity Stacks - EC997 Dyno Developed


pn:   VEL-K39-2125    $429.95

fits 13-19 zx6r

(lipped groove)

1. Choose your shipping method


Factory Pro's new patented stack design will update the 6r's to the latest higher hp spec stack type and then, even further, improve power with Factory Pro's EC997 Dyne System developed stack profiles and lengths.

The stock 09-12's are interesting in the intake tract area.

The throttle bodies and stock velocity stacks cross section is shaped somewhat like an old time western bathtub, complete with a head rest, but minus the suds. Not much going for it, as far as effectiveness.

We worked on the EC997 Dyne System with keeping the original shape and only modifying the lengths, but got essentially, nowhere.
With a lot of creativity and a large investment in molds, we created a round cross section stack and a unique rubber "oval to round" adapter that features Factory Pro's high velocity throttle body "stuffers" (as used on our awesome gsxr 750 and 1000 stacks).
We individually tested many different lengths and shapes of stacks and the zx6r (and 636) really woke up.

This testing was done with a Leo Vince race slipon. After we did the R&D, we installed a Leo Vince full system and picked up another 3-4 hp throughout the upper midrange and about 3 at peak. A REALLY good match for the stacks!

The chart below is JUST installing the stacks. A very nice improvement for about 45 minutes of owner installation time.


Oil Additive

$30 / 4 oz bottle

Anti Friction
4 oz treats 3 to 5 qts synthetic oil

1. Choose your shipping method
The privateer's advantage.

The "big teams" already have a lot of advantages - but not this  one.

After a race's worth of running over 100 privateer AMA and WERA bikes, we gained from 2% to 3% power,

The least I saw was 1% (JR's super loose built engine) and the most I ever saw was 4% (on a super tight street  built engine).

The other 98 bikes picked up 2% to 3% power - with most 2% and  2.5%

Lasts 2 and up to 3 oil changes (tapering off in effect).


oil additive

Engine tuning: KRT kit ECU with EC997 dyno used

06 636 with KRT ecu
J Farkas
(click pic to view full size chart)

The bike runs great, by the way, thanks. John Farkas
2006 zx-6r (636 ninja)

Unlike common dealership level dynos, EC997 dynos can easily be used to to tune the KRT, the Honda HRC and the Suzuki "kit" (sold by Yoshimura as "em-pro") race ecu's.
While a dealership might try to sell a pc and end up with, well, "tuned to a af performance", the Factory Pr EC997 dynos will actually help the tuner tune to the REAL correct af ratio - and that's the one that makes the Best Power -and it's different at every rpm and throttle position.
(a lot of guys with dealership dynos know that, but it takes too long to do on a dealership level dyno)

A dyno tuner and an
EC997 with the exclusive Factory Pro 4 gas EGA can tune a kit ECU in a reasonable amount of time.

When the southern Ca magazine bike projects need a kit ecu tuned, they use the EC997 dyno. Since there's no EC997's in socal, they drive 7 hours up north.

The picture to the left is a thumbnail of John Farkas' 06 636 that was tuned to Best Power.

All Billet Engine Covers

10% discount if purchased as a set! Make sure you ask for the discount!
800 869-0497

Billet Engine Cover for 05-06 ZX6r / rr
(with the stock charging system)
Billet Engine Covers with Integrated Sliders!
(pat #6,637,787)

Absolutely the strongest cover you can buy - and has the highest strength / weight ratio available! Exclusive Super tough Hi Tech  replaceable insert takes the damage!
Hi-Tech fly cut surfaces can be polished to a brilliant sheen for the ultimate in show! Does not require a new gasket.
The stock cover grinds through more easily than the Factory Pro cover when "low sided" on the right side of the bike.  If the stock cover breaks, the bike settles even lower and the radiator becomes even more vulnerable to damage

w/ Integrated Slider.

05 - no fairing cutting required
06 - delete stock cover/fairing mount and trim fairing

International buyers will be billed an additional $18
w/ Integrated Slider.

05 - no fairing cutting required
06 - delete stock cover/fairing mount and trim fairing

International buyers will be billed an additional $18
KRT Software
 FI Tuning for Kawasaki zx6r/rr
using 4 gas EC997 Dynamometer Systems



Kawasaki ZX6-R

Series WMRC


Thanks to all who helped me get to this level.
Keith Code and the California Superbike School
AGV Sports
KBC Helmets
Elka Shocks
GP Suspension
Factory Pro Tuning
Graves Motorsports
Yin's TKD


Hi All


            Well the moon and all the stars have gone into alignment for me and I will be contesting 11 rounds of the WSMC with an eye towards the class championship in four classes. F-40, 650 Superbike, 750 Superstock, and 750 Mod. Prod.  This weekend was the first round and here is how it went;


            The first race was 750 mod. Prod. And having no points in the class from last year I was gridded in the last row, fortunately that was only the fourth row. This was my first race on slicks and I was very nervous about it. I got a good start and was in second on the first lap behind Cory Eaton about two seconds back. We started going through lappers on the third lap and by the end of the fourth lap I was right behind him. He got balked in turn eight on the fifth lap and I took the lead. He came right back by on the front straight and I stayed on his tail through one and two, then going into three I got up the inside and took the lead back. I was very excited to be in the lead and put my head down through to turn nine. I got on the gas a little hard and it started sliding before the apex, which was just enough to throw off my exit and I went through the dirt into the pit lane and barely got it turned back onto the front straight. That was all Cory needed and he got me by a wheel at the line. 2nd.


            Next was F-40 one race after. I got a good start from the second row and was second into one and first at the exit. I was going to try to put in some faster laps with the clear track and did for the first two. On the third lap I saw the fuel light on the dash and remembered I didn’t fuel the bike, OUCH! I put it in sixth and tried to baby it in, luckily I had done two sessions on Saturday no brakes and I knew I could run 28s with no brakes in sixth. So with the brakes and three laps to go I was praying no one would catch me and I would have enough fuel to finish. I did and they didn’t so I won. 1st.


            Next was 750 Superstock, this is the race I lost by a wheel last month and two seconds in November riding my 636 Kawasaki. Registration had some problems and when I looked at the grid I wasn't on it. I went in and got that fixed but they didn't want to grid me in my points position and instead put me at the back of the grid on the fifth row. GROAN. I was freaked out about being in the back and put my mindset switch in the KILL position. I got off with the group and into one on the outside. I have no idea how I did it but going into three on the first lap I was fourth! Second by the end of the first lap and shadowed Cory Eaton for the next four laps. On the white flag lap I took the lead into three and got under a lapper just after the apex of four and blistered to the line for the win. Latter I found out the lapper had held Cory up until six but by then I was gone.  1st.


            My last race was 650 Superbike. I was feeling good after the first three races and was ready for Chris Siglin. I got off good and was second on the first lap. My plan was to do the same thing and just follow the leader and only race on the last lap. At the start of the third lap Palazzo came up the inside of me entering one, I was able to hold him off but now it was time to go. I got Chris into eight but that was when I realized I had the suspension set up for slicks and I was now on 208's and there went the rear end and they both got me into one.  I had the bike sideways in eight twice and was getting spooked. I hung on and thought we might have a dash to the line with me getting the double draft. I went into eight about twenty feet  behind and right in the middle of eight the rear let go and got about 6 inches out before I caught it. That was it, they got at least 50 feet more in an instant and I lost the draft. Too bad because Chris got sideways out of nine and they both shut off, if only I had been closer. I finished third a half second back.

 Will Eikenberry      WSMC # 87  CCS Pacific # 63

SHIFT STAR feedback

Aloha Marc,

I called earlier today looking for you but i was told you were in the middle of R&D.

I appreciate everything you have helped me with regarding your race 04 ZX6RR, the Shift STAR shift kit you recommended works like a dream. Real smooth shift with little effort.

The reason for my call was I wanted to ask you when do you think you will have an ignition advancer available and what timing do you recommend. I was thinking 4 degrees, what is your take. I don't have a dyno to see what works, so im looking forward to your expert advise. Thank you again and God bless.

Ivan Gabriel
Cycle City ltd.

Curtis Cash creeping up an a gsxr1000 at Pahrump
May 2004



MY Addendums and corrections to Roadracing World article, Feb 2005

"More Power!"


The 114.8 djhp that this zx6rr made in it's "pre-engine mod" stage 1, was the result of specially designed velocity stacks that we made for it, a specially modified ignition rotor to eliminate the max +/-5 degree limit that the KRT "kit" junior software has, a BMC RACE filter,  a very easily tuned KRT "kit" ECU, an Akrapovic exhaust and we used an EC997 Low Inertia dynamometer to derive optimal power settings.
It made that 114.8 djhp using standard, Los Angeles, low octane, low emission, California pump premium fuel (unspecified fuel type in the article).
It started out at about 100 djhp, with stock exhaust, as measured on the same dynojet dyno.
It was not simply "the only other addition was a Kawasaki kit ECU, as the article states -it was Factory Pro Stacks, Factory Pro Ignition Advancer, and Factory Pro EC997 Dynamometer tuned KRT ecu.

Regarding the Kawasaki KRT "kit" ECU: The article states that "only a handful of people have experience with it" - It's not that hard to use - They even were able to use the ignition part of it, so, even they can tune it - with no previous experience. Since the kit ECU controls fuel, and they could tune the ECU, why leave a power commander installed? (because a dynojet dyno can't provide adequate information.)

The bike ended up running VP Ultimate 4 fuel (U4)- an awesome fuel for adding power! It's 6% to 8% extra oxygen content over plain fuels generates 6% to 8% better power - all by itself.
(if one added VP Ultimate 4 to the 114.8 djhp that it made with good tuning on pump gas.... 114.8 + 6% to 8% = 121.7 to 124 djhp)

The bike made, according to the text, "an incredible 124.7 bhp @ 14,000 rpm" -
'BHP"  means "brake horsepower" as in on a load dyno - not an inertia dyno horsepower value.
There must be a difference, as the dynojet dynos read djhp, which is significantly higher than true hp - about 15% at the 100 true hp level, depending on which dynojet dyno you are comparing it to.

The graph doesn't show 124.7 peak power at 14,000 rpm - it shows 126ish - 127ish at 14,500 - 14,600 rpm.

Just to keep the facts straight, provide some background and reference values.

This week, this page sponsored by:








Absolutely NO carb parts sold in California.

New and improved
Suzuki Teka SFI 2
with new TPS display and "MMT" Memory Module Tuner feature

Finally - Quick, easy, cost effective Suzuki tuning with no expensive "add-on boxes"
Suzuki cruisers and sportbikes

Please click here for more info

Contact Factory Pro
M-F, 9am - 5pm, Pacific time, -7 or -8 GMT

800 869-0497
 USA and Canada

415 883-5620

no fax

Factory Pro
101c Roblar Drive
Novato, CA

If it's
4pm at Factory Pro it's 9am in eastern Australia.

parts information

EC997 dynamometer information

Product Support /Tech SECTION
click here

And most importantly
Restart back at the HOME page and click on the red box in the top left to find the bike that you want parts for...

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The extension of the laboratory for engines of the Swiss Federal Institute of Technology was completed in about 1935. Its architect was Rudolf Otto Salvisberg (1882-1940). He had a successful career in Berlin but returned to Switzerland after the advent of the Nazis. His architectural style was somewhat similar to that of Erich Mendelsohn. The staircase of the laboratory is in normal use but well preserved.
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