Product Description

Unbelievable noise reduction in high-performance packageApproved by the Blue Ribbon Coalition and ORBACompatible with FMF or stock headerAdvanced design for painless repackingSound output as low as 92 dBSpark arrestor includedThis item fits the following models: 1998-2000 Yamaha WR400F2001-2002 Yamaha WR426F1998-1999 Yamaha YZ400F2000-2002 Yamaha YZ426F

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Product Details

• Amazon Sales Rank: #815207 in Automotive
• Brand: FMF
• Dimensions: 8.00" h x 8.00" w x 43.00" l, 8.50 pounds

Features

• Unbelievable noise reduction in high-performance package
• Approved by the Blue Ribbon Coalition and ORBA
• Compatible with FMF or stock header
• Advanced design for painless repacking
• Sound output as low as 92 dB

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Customer Reviews

Most helpful customer reviews

0 of 0 people found the following review helpful.
Handsome, high functioning, and quiet
By banda
Watch Video Here: http://www.amazon.com/review/R3TU4KB85DWS0U Have you ever heard a YZ400 or YZ426 with its stock exhaust? They are loud, painfully so, with an unpleasant, metallic crackly sound. These bikes were the first of the mass produced 4 stroke MX bikes, and Yamaha spent little if any time trying to make them quiet.
FMF's Q4 exhaust, refined well after the end of YZ400/426 production, is a much more modern silencer design, and it shows instantly when you install one. Gone is the unpleasant sound of the stock exhaust. Your old YZ will sound like a modern thumper with one of these installed.
My bike fired on the second kick after installing this silencer and the FMF Powerbomb header, and idled at a much much lower volume of sound than I had ever heard it before. It sounds like a derestricted playbike now instead of a cranky metallic monster. Low speed engine response is smoother, more linear, and as a result, makes the bike easier to ride in tight stuff. Power to roost is still there when you twist the grip, coming in a quick, deep bark.
This is a handsome exhaust for these old bikes. It runs much quieter than the dated stock YZ exhaust, and makes the bike easier to ride in a wider variety of situations. It's the best money I've spent on my YZ, and I wish I had done it sooner.
The video is helmet cam footage of my first ride around the yard after installing this silencer and the FMF Powerbomb header.