M4 full exhaust testing

, I have completed testing and tune development on the M4 full system for the ZX4RR.    I am impressed with the system.  Thank you to the awesome customer that sent me this preproduction system because her wanted my flash for his bike!!

Being a preproduction system, it is probably a bit heavier than the production piece.  This system weighed in a 11 lb 13 oz.  This is a 8 lb 2 oz savings over the stock exhaust.    It registered 74 db at idle and was off the chart loud during a dyno run.  The below video has a sound clip.

Here is a video summary of my testing,  more dyno  runs are below the video 

First set of dyno runs are the M4 system vs the stock bike.  These tests were done on different days, so it is not a completely fair comparison.

The next dyno runs shows the M4 vs the Graves low mount.  These were done on the same day about an hour apart .

The next dyno run is the M4 vs the Yosh 25 system.  These were done on different days.

Last dyno run is pump gas vs MR12.  My MR12 is getting old and losing some of its pop or I would have seen more gains from it.

M4 exhaust and my mail in  ecu flash can be purchased below.

On Sale

On Sale

ZX4RR M4 exhaust

$559.00 - $1,234.00

see my zx4rr flash development page for testing results

Kawasaki ZX4-RR - FLASHED BY VCYCLENUT

Add my ECU flash for $275 , a $25 discount if flash bought by itself

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Kawasaki ZX4RR / ZX4R ECU FLASH

$325.00 - $475.00

full testing results can be seen here:

Kawasaki ZX4-RR - FLASHED BY VCYCLENUT



Please fill out the information sheet when sending in your ecu :

flash Information sheet to send in with your ecu - FLASHED BY VCYCLENUT

Settings adjusted in the flash are:

IAP fuel maps

TPS fuel maps

Ignition timing maps

Fly by Wire Throttle maps

Deceleration maps

Quick shifter kill times

Disable injector fuel cut

Disable top speed limiter

Disable closed loop fueling ( o2 sensor)

Lower fan temperature activation(optional, 195 F is my default)

Raise Rev Limiter (optional)

Disable PAIR Valve ( optional)

Disable EVAP ( optional)

GP shift ( optional)

All power modes and KTC settings work as stock after the flash

I am updating low power mode with new fueling settings but leaving the ignition timing and throttle maps as stock

A full second tune can be added to lower power mode for MR12 or a fully different set up for an additional $150

if you would like a set of the zx4rr Flashed by Vcyclenut stickers (see pictures above) for your bike, just let me know what color in the special requests section of the flash information sheet that you send in with the ecu

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