Spark arrestor end cap

[By Sean_McCutcheon, Posted June 7, 2004]

Which spark arrestor end cap is the best for a YZ 450 stock pipe?

[By MXof21, Posted June 7, 2004]

I used the Promoto spark arrestor and the quiet insert, worked great and I didn't even have to rejet.

[By 426F, Posted June 8, 2004]

same results with the pro moto as above

[By Sean_McCutcheon, Posted June 8, 2004]

The Dr. D seems to be cheaper then the pro moto. Is there anything wrong with the Dr. D? Is there advantages or disadvantages to either one?

[By sirthumpalot, Posted June 8, 2004]

I've sold both, they are very similar, so similar that I would think the performance would be identical.

[By MotoChris521, Posted June 8, 2004]

I have the PMB on my 426,excellent fit & finish.

[By Fly-nBri, Posted June 8, 2004]

PMB with no problems. Even asked them for extra bolts so I could tap out my own and they sent them with the kit.

[By Sean_McCutcheon, Posted June 9, 2004]

Thanks Guys, I ordered the PMB.