[martinz]

So basicly yesterday we finished building our 2021 yamaha yfz450r, and today we went for a test ride to make sure nothing is falling apart.
And we found that our exhaust, that is GYTR / HGS, is realy making it harder for the bike to get to the speed.
we know that this exhaust is specialy made for that, but we would like to improve that anyway, cause for me it feels like forever.

Maybe its fixiable with turning on a other map on vortex or getting rid of filter box lid.
I dont know, any help would be great.

 

[hew]

Try to change your map and take the lid out and do the cam mod so it can be a bit faster and try it again.