what all the different brands out there...which one is the best in your opinion?

 

I have the gytr on mine it and runs great, also look into hmf, fmf, and yoshimauri are other good brands

 

That's two votes for the GYTR pipe - I have the full Titanium exhaust on my YFZ and it's the best pipe I've had to date. I've had CS and HMF - my hubby has a DG system.....the GYTR pipe not only sounds great, but it gives really crisp power.

Just my .02

 

make that 3 for the gytr