Kawasaki ZX-10R.net - Reply to Topic
Thread: Gen 4: 2011-2015 How critical is a tune or flash for a mostly street bike? Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Kawasaki ZX-10R.net forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
06-15-2019 06:22 PM
arc Anything that allows more air in or less restriction for exhaust gases out dictates a tune. Your bike won't implode but your exhaust valves will run hotter and could be damaged. FTR I like having an AFR display too, I use the hacker/tweaker board, so that I can be 100% confident during tuning that I'm not sitting in dangerous fuelling territory.

06-15-2019 12:08 PM
GLJazz Fantastic info. Thanks arc! Looks like the Woolich site is the only place to order from?

Graves going on tonight which I understand is fine for awhile pre-tune?

Planning to with -1 front for street and save the +2 for later.
06-13-2019 11:41 PM
arc I'm on my third gen 4 zx-10r, the first two (circa 112,000 kms across them) had PCVs and this third one, which has done circa 147,000 kms, has had a Woolich flash from close to day one.

All of these bikes are for street use, with occasional track days.

Night and day. Simply night and day. I would never not flash a future bike.

Of the two options, mail in vs self flash I'd always go with self flash. Why? Because you can flash it back at the drop of a hat, you can tweak it as much as you want to perfect your own unique tune. Two bikes coming out of the factory next to each other will require different tuning, that's just the way the world works. No two bikes ever benefit from exactly the same fuelling. Doing that is always a compromise. Useful too if you get an EPA type notice too. And if God forbid something happens to your ECU in the mail then you'll be up for a world of cost with a new immobilizer etc.

So. Go self flash. Is it hard, no. I've written several articles on how to use this, these are stickies on Justin's Woolich Racing Forum and are also hosted on my personal not for profit rider website https://www.arcnineohnine.com (hint, under "articles"), direct links below.

Right, now you've decided to self flash with Woolich, what will you get out of it? As near to a perfect tune as you want. Removal of fuel cut on decel, one of the very worst things ever done to our bikes, no need to add block off plates (which are seriously fiddly and very time consuming to install), no need for a resister pack to allow removal of the exhaust exup valve and perfect fuelling. So what? Perfect fuelling, who cares? To give you an idea my 2nd gen 4 with PCV would get a *maximum* of 200kms to a tank, my current one gets 240-280kms to a tank. What else? Smoothness. A beautiful tune lends itself to a beautifully smooth throttle feel.

Have a look at






Happy to answer questions on this as I've been there since Justin released his very first flashing kit for the gen 4 zx-10r over six years ago. I prefer to answer questions in a public forum so that others can benefit.

Arc NineOhNine.
06-13-2019 11:51 AM
nakedinseattle Send it to 2 Wheel DynoWorks. He uses Woolich but is the best out there for mail in flashes, each flash is custom built to the mods on the bike, it's not just a flat canned flash.
06-12-2019 11:05 PM
Originally Posted by Porschenut View Post
Yes. It's the 1st mod I'd recommend doing. So many benefits even beyond the extra power. A big one for me was being able to turn the TC off while in motion. It'll also remove the warning light you get after ditching the exhaust valve servo and catalytic converter.
I've got a 2017 and flashed via Woolich, how does one change the TC setting while rolling?
06-12-2019 12:25 AM
gen4GTO no flash 165hp @10k
flash 177hp @14k
06-11-2019 11:31 PM
GLJazz Graves Ti mid/link inbound.

-1/+2 inbound.

Still deciding on a path for the flash. Torn between mail in and ftecu/Woolich but not sure why Id want to flash back.
06-11-2019 03:35 PM
belkins +1 on a flash... you at least want to flash the euro map. i run woolich on my gen 4 2013 with log box and auto tune. woolich customer support is awesome also if you have problems or questions with there hardware/software.
06-10-2019 07:41 PM
cwrzx Gen 4 Ivan's Performance flash is incredible.
06-10-2019 06:56 PM
GLJazz Thanks for the replies. Do we have a consensus on FTECU / Woolich / mail in (Guhl still king?)?
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

For the best viewing experience please update your browser to Google Chrome