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Pro Circuit T-4 4-Stroke Silencer - 4QY01660

  • Part #: 446805
  • Manufacturer Part #: 4QY01660
  • MSRP Price: $374.95
  • Our Price: $337.46
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446805
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Overview of Pro Circuit T-4 4-Stroke Silencer - 4QY01660

  • Designed to boost output throughout the powerband
  • Fine-tune your power delivery by changing end caps (See T-4 Replacement End Caps under Exhaust Replacement Parts and Accessories)
  • Lighter than stock
  • Extruded 6063 aluminum silencer resists oxidation and features long-lasting packing material
  • Quick access U.S. Forest Service approved screen spark arrestor
  • This silencer comes with a 2 in. diameter end cap
  • Can be used with OEM or Pro Circuit head pipe (sold separately)

    NOTE: Rejetting is recommended with this exhaust


Specs

Type - Exhaust Muffler/Silencer w/Spark Arrestor
Units Each
Weight 3.81 lbs

Specs for Pro Circuit T-4 4-Stroke Silencer - 4QY01660

Type - Exhaust Muffler/Silencer w/Spark Arrestor
Units Each
Weight 3.81 lbs

Fitment for Pro Circuit T-4 4-Stroke Silencer - 4QY01660

Part 446805 fits the following machines

See if this part fits your ride

Yamaha
2005 Yamaha YFM660R Raptor
2004 Yamaha YFM660R Raptor
2003 Yamaha YFM660R Raptor
2002 Yamaha YFM660R Raptor
2001 Yamaha YFM660R Raptor
2005 Yamaha YFM660RLE Raptor Limited Edition
2004 Yamaha YFM660RLE Raptor Limited Edition
2003 Yamaha YFM660RLE Raptor Limited Edition
2002 Yamaha YFM660RLE Raptor Limited Edition

Reviews for Pro Circuit T-4 4-Stroke Silencer - 4QY01660

out of 7 reviews.

6 out of 7 (86%) customers would recommend this to a friend.

5 Stars
4
4 Stars
2
3 Stars
0
2 Stars
0
1 Stars
1
Fitment:
Sound: Loud
soft loud
Finish:
Performance:
Write a Review

More power better sound!

May 27, 2013

Bought for my '95 KLX650R and am very happy. I replaced a cheap aftermaket silencer that rattled. Huge upgrade! Fit perfect sounds awesome, and better power.

I would recommend this item to a friend.
Fitment:
Sound: Loud
soft loud
Finish:
Performance:
By: from Billings, MT

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nice pipe

October 7, 2011

this was well made but the T-4 4-Stroke Silencer Part #448937 didn't fit my stock 2001 drz400s head pipe, It looked well made but i sent it back , Not sure if a different part number would have fit. I ended up just getting a full system from another maker.

I would recommend this item to a friend.
Fitment:
Finish:
Performance:
By: from NY

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May 7, 2011

I wouldn't recommend this item to a friend.
Fitment:
Sound: Very Soft
soft loud
Finish:
Performance:
By:

May 6, 2011

I would recommend this item to a friend.
Fitment:
Sound: Loud
soft loud
Finish:
Performance:
By:

good pipe

January 11, 2011

Put on 03 wolverine sounds nice and throaty and not too loud . nice machine welds on canister - welds on mid pipe not so nice . fit well but had to cut a slot on end of pipe so hose clamp could compress the seam

I would recommend this item to a friend.
Fitment:
Sound: Loud
soft loud
Finish:
Performance:
By: from erie pa

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Nice Pipe

August 17, 2010

Good sound, good power. Quiets down considerably when at cruising speed. I needed to re-jet but that helped with power as well.

I would recommend this item to a friend.
Fitment:
Sound: Loud
soft loud
Finish:
Performance:
Product Recommendations
By: from Charleston, SC

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GOOD EXHAUST

September 26, 2009

It´s very good exhaust, good quality, good performance. Too much better than leovince or FMF.

I would recommend this item to a friend.
Fitment:
Sound: Loud
soft loud
Finish:
Performance:
By: from SPAIN

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Instructions and Media for Pro Circuit T-4 4-Stroke Silencer - 4QY01660

Instructions - PDF Instructions - PDF Instructional PDF