I have just built my bike now i am looking for the most horse power and wonderign what all you guys have had luck with? Mods include.
416 bore
LRD cam
Valve springs
Hardface Rockers
Port
High rev CDI
Keihen 39FCR carb

That is it so i am looking for suggestions or maybe a web site that shows dino runs. Who knows any info is valued.
Thanks..

 

A coulpe of friends both have the full dmc aliens , they are and sound like nothing else. Also they showed significant gains after installation. I would recommend this pipe to anyone looking for a full pipe.

 

The pipe that I heard worked the best with a modded out engine was the Supertrapp Shorty, I am looking for that pipe for mine but I can't find anybody that sells it. Right now I have the FMF Power Core IV.

~Team400ex
The Team400ex Homepage

 

I was checkin out a SuperTrapp from Ritter Racing. You should try them, they might have it.

 

I have the DMC Alien. I have owned the big gun, powercore and megamax. By far the worst pipe was the Big Gun. By far the best is the DMC. At the GT Thunder website they do a modified 400 pipe shootout. The winner is the DMC and coming in a close second is the White Bros pro-meg, they are both great pipes.

You really have only a few choices.

DMC Alien
LRD 440
Sparks x-6
WB Pro-Meg

The rest of the exhausts on the market do not flow well on a modified motor. I have researched this many times before.

It also depends if you care about noise, LRD, sparks and DMC are all loud race pipes. The Pro-Meg is a little quieter and still puts out the power.

If I knew the GT Thunder website I would give it to you so you could compare. Maybe do a search on this forum.

I hope I helped.[img]i/expressions/face-icon-small-cool.gif[/img]

 

i have heard good things about curtis sparks. check it out at www.sparksracing.com