:fork I HAVE A 99 R1. WHATS THE BEST FULL EXHAUST SYSTEM THAT GIVES THE MOST HORSE POWER :machinegu :boom

akrapovic, plenty of info on this site. Run a search for more info.

http://www.albinoblacksheep.com/flash/posting.php

:beer

And again, just ask once.

Better yet, search.

Originally posted by mr_cute32208
:fork I HAVE A 99 R1. WHATS THE BEST FULL EXHAUST SYSTEM THAT GIVES THE MOST HORSE POWER :machinegu :boom
go with the graves full titanium system with the titanium oval muffler. If not the oval the round. The oval looked better. the performance gain from the graves full ti system is equal or better than the akra.:D

I'd say the Arata would be better also, but they're all gonna help. Go with the one you like.

I had a 99 back in the day. I put an M4 full system w/carbon can on it. After I finished jetting I had it dyno'd. Stock HP was 131 at the rear wheel. After exhaust, jetting, BMC filter and gutted airbox (I cut out the flap that looks like it blocks airflow.) The bike dyno'd at 149.5HP and 72Ft-lbs of torque all at the rear wheel. The bike was amazing. M4 really makes a great product that won't drain you wallet. I highly recomend it for that year of R1.