I am in the market for an exaust. I've wanted to get for a long time, but I've just rebuilt my motor and I think I need a pipe on it. I think I will get the white bros, because I've had one on my older 300ex and my friends have had them and we have had good luck with them. I do have one quesion though. Is the header pipe on the pro-meg, really any bigger? I've looked at pics and it doesn't look any bigger. If someone who has bought one could compare the stocker to the pro-meg head pipe, I would greatly appreciate it. I don't want to have to buy the complete exaust if the slip on will do the same thing. Thanks a lot.

 

Yes! It is absolutely bigger! I researched this for months because if I'm going to spend almost $500 for something, I'm going to know that I'm getting the best thing availible. The pro-meg made a very nice addition to my quad. Since you have already modded your machine I would highly recommend it concidering the extra exhaust flow. If you weren't planning on motor mods than I would just suggest a slip on, but the mods that you have, make me think that you will eventually go to a 440 or something. This is were the larger headpipe and larger opening to the silencer really shine. GT thunder has dyno's on the net that show a hopped up 400 with a WB Pro-Meg as compaired to the same Quad with a Big Gun. the big gun, made the quad loose around 4hp. But make sure not to confuse the regular e-series with the Pro-Meg. Get the Pro-Meg

 

i echo EXjumper he said it all
im getin promeg full setup.. im going to use the slip on until i have done engine mods