YZ400F exhaust, Cant make up my mind


5 replies to this topic
  • Groves187

Posted August 24, 2007 - 02:35 PM

#1

I have a YZ400F Powerd LoneStar Hybird (ATV) that i race MX with, Over this winter i am doing a total rebuild. Sending the head out to Johnny Hale to get MX ported, Putting in a 13:1 JE piston and a set of Hot Cams. Now my problem. I am curently running a TC racing Shorty (Suppertrap) witch is way to loud i am told around 110 DB! I am having a hard time deciding on a exhaust for this beast.

This is what i have so far

White Bros Aluminum Pro or a FMF Factory 4 System. If you have any input on other exhaust systems plz let me know to help me make my choice!

Nick

  • 00 Kracker 00

Posted August 24, 2007 - 02:36 PM

#2

I love my FMF powerbomb exhaust .

  • cowboyona426

Posted August 24, 2007 - 03:11 PM

#3

Thunder Alley makes a nice pipe for the 426F that works well.

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  • Jekel

Posted August 26, 2007 - 07:55 PM

#4

There are many good pipes out there. I run a Supertrapp on my WR and have had people look at me funny. I like the performance of it over the older FMF. I would shop for one which is quiet, but not too restrictive on performance.

  • 426 NOOB

Posted August 27, 2007 - 03:14 PM

#5

I would go with the white brothers. They look good, sound great, and perform even better. But if you are looking for a certain price range ive heard great things about powerbomb headers.

  • yz454

Posted August 30, 2007 - 05:04 PM

#6

Use the 426 stock pipe.You will like the spread.





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