If your willing to pay the price for a yoshi. U might give Looney Tuned Exhaust a call. They built a full exhaust for our 300ex build and it produced 2 more HP then the hmf did. But I don't know if they make them for the 300ex. They might. The only downfall with a Looney exhaust it's VERY loud. But I love it I can ALWAYS tell when he is coming in a whole pack of quads. NO other exhaust has a sound like this exhaust.
#838 Michael Mussi Jr.
2 Time GNCC National Champion
09 Honda trx450r (tricked out)
08 Honda trx450er
13 Honda Rancher 420FM
The Money spent on his quad seems like a million bucks:
The smile on his face after winning the race PRICELESS !!
Last edited by 838xcracer#1; 02-06-2011 at 02:00 PM.