2012-2014 wr450f performance mods

Just curious what performance mods anyone has done on the FI wr450s?

What mods, what were you trying to accomplish, if mapping needed be adjusted for the mod, how it did it ride, and was it worth it?

Excluding the throttle screw, airbox mod, ecu swap and slip on, those are a given

Interested in this, just purchased a 2012 wr450f and being from Australia all of the base mods mentioned above are done, plus it has the GYTR pipe, got to tune it next and then I'm not sure where to go from there.

Also picked up a 2012 last week . Im also curious

From Yamaha:

 

GYTR (YZ profile) Exhuast cam

GYTR head (more flow)

Full exahust

Re-map to match

 

From outside: (and much less expensive)

 

Head porting 

2006 YZ Exhaust cam (requires modifications)

Full exhaust

Re-map to match

My 15' (12-15 models are the same) I've done the typical mods.

Removed the airbox snorkel that is accessed under the seat

GYTR ECU and throttle stop screw.

Power tuner with FMF map uploaded.

Bought a FI diagnostic tool and Properly adjusted the C/O

FMF megabomb header

FMF gytr muffler.

Full supermoto trim..

Pulls hard and runs great.

Edited by Kx250FRiDeR651

From Yamaha:

 

GYTR (YZ profile) Exhuast cam

GYTR head (more flow)

Full exahust

Re-map to match

 

From outside: (and much less expensive)

 

Head porting 

2006 YZ Exhaust cam (requires modifications)

Full exhaust

Re-map to match

So I'm taking it you bought the whole GTYR package that included the ported head with with cams and high compression piston which cost another 2k$

My 15' (12-15 models are the same) I've done the typical mods.

Removed the airbox snorkel that is accessed under the seat

GYTR ECU and throttle stop screw.

Power tuner with FMF map uploaded.

Bought a FI diagnostic tool and Properly adjusted the C/O

FMF megabomb header

FMF gytr muffler.

Full supermoto trim..

Pulls hard and runs great.

Thanks for the input, but if you saw my second post, I said all those mods were a given.

So I'm taking it you bought the whole GTYR package that included the ported head with with cams and high compression piston which cost another 2k$

 

I haven't, but others here have.  Just the GYTR head, for about $800

 

I did mine (carb'd) using local tuner porting and Dubach racing full exhaust, and Dyna ignition.

Edited by KRANNIE

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