Pro Moto Billet Insert


5 replies to this topic
  • Pluto67

Posted May 23, 2008 - 06:48 AM

#1

I have a WR450. I'd like to remove the stock baffle insert. I understand the bike is then a bit louder. If instead I put in the Pro Moto Billet Insert the exhaust still has a spark arrestor right? I want to stay 'legal' to ride Forest Service roads and public land and I don't want to be real loud.
Thanks

  • hoople

Posted May 23, 2008 - 06:54 AM

#2

Ihave an 08 450 with the PMB, my buddy has an 07 450 with the stock insert removed completely, Ithink mine sounds better, his is a little tingy. No noticable power diff between the two. the spark arrestor can stay in with either mod as it bolts directly to the muffler housing

  • STECKNINE

Posted May 23, 2008 - 07:00 AM

#3

The stock baffle does not have a spark arrestor screen in it so, just pull it the hell out. you will need the new performance baffle from Yamaha to put back in..I have already waded up my stock pipe so let me know if you want my performance baffle?

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  • Just_a_trail_rider

Posted May 23, 2008 - 07:24 AM

#4

I have a WR450. I'd like to remove the stock baffle insert. I understand the bike is then a bit louder. If instead I put in the Pro Moto Billet Insert the exhaust still has a spark arrestor right? I want to stay 'legal' to ride Forest Service roads and public land and I don't want to be real loud.
Thanks


To answer your question... Yes, the stock exhaust can with the PMB insert is still forest legal. The sparky is definitely still in there. It willl give you a little more power and only make a little more noise. You will need to rejet (more air requires more fuel), so see the jetting guide.

However, there is a big difference with the aftermarket pipes. I have the stocker that I use for sound tests at races because it blows a nice 94. But when play riding, I use my FMF factory 4. It blows a 99db, but its got tons more power.

  • Dube2

Posted May 23, 2008 - 07:57 AM

#5

The Pro Moto Billet insert is like $60 and the GYTR insert is like $42. :thumbsup:

Like, check it out!

  • Demo_Slug

Posted May 24, 2008 - 10:21 PM

#6

The Pro Moto Billet insert is like $60 and the GYTR insert is like $42. :thumbsup:

Like, check it out!


the promoto is worth the extra coin.




 
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