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Pro Circuit T-4 4-Stroke Silencer - 4S03400

  • Part #:
    448937
  • Manufacturer Part #:
    4S03400
This item is no longer available
Overview of Pro Circuit T-4 4-Stroke Silencer - 4S03400
  • 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 to the U.S. Forest Service approved screen spark arrestor through removable end cap tip
  • Can be used with OEM or Pro Circuit head pipes (sold separately)

Specs for Pro Circuit T-4 4-Stroke Silencer - 4S03400

Color - Primary Chrome
Style Canister Muffler
Type Muffler/Silencer w/Spark Arrestor
Units Each
Weight 8.00 lbs

Alternate/OEM Part Number(s):

4S03400
Specs for Pro Circuit T-4 4-Stroke Silencer - 4S03400
Color - Primary Chrome
Style Canister Muffler
Type Muffler/Silencer w/Spark Arrestor
Units Each
Weight 8.00 lbs
Fitment for Pro Circuit T-4 4-Stroke Silencer - 4S03400

Part 448937 fits the following machines

Make Sure This Fits Your Ride
Kawasaki
  • 2003 Kawasaki KLX400R
Suzuki
  • 2004 Suzuki DR-Z400
  • 2003 Suzuki DR-Z400
  • 2002 Suzuki DR-Z400
  • 2001 Suzuki DR-Z400
  • 2000 Suzuki DR-Z400
  • 2007 Suzuki DR-Z400E
  • 2006 Suzuki DR-Z400E
  • 2005 Suzuki DR-Z400E
  • 2004 Suzuki DR-Z400E
  • 2003 Suzuki DR-Z400E
  • 2002 Suzuki DR-Z400E
  • 2001 Suzuki DR-Z400E
  • 2000 Suzuki DR-Z400E
4.1 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
4
2
0
0
1
Finish
4.7 / 5
Performance
4.0 / 5
Loudness
Very Quiet
Average
Very Loud
Finish
5 / 5
Performance
5 / 5
GOOD EXHAUST
It´s very good exhaust, good quality, good performance.
Too much better than leovince or FMF.
September 26, 2009
Finish
5 / 5
Performance
3 / 5
nice pipe
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.
October 7, 2011
Finish
5 / 5
Performance
5 / 5
More power better sound!
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.
May 27, 2013
Finish
5 / 5
Performance
5 / 5
Nice Pipe
Good sound, good power. Quiets down considerably when at cruising speed. I needed to re-jet but that helped with power as well.
August 17, 2010
Finish
4 / 5
Performance
5 / 5
good pipe
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
January 11, 2011
Finish
5 / 5
Performance
4 / 5
No Review Title Entered By User
No Review Text Entered By User
May 6, 2011
Finish
4 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
1 / 5
No Review Title Entered By User
No Review Text Entered By User
May 7, 2011
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Instructions and Manuals for Pro Circuit T-4 4-Stroke Silencer - 4S03400