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FMF

PowerCore 4 SA Muffler w/Stainless Steel Header - 040071

  • Part #:
    446570
  • Mfg Part #:
    040071
  • OEM/Ref#:
1 / 1

FMF

PowerCore 4 SA Muffler w/Stainless Steel Header - 040071

  • Part #:
    446570
  • Mfg Part #:
    040071
  • OEM/Ref#:
MSRP: $249.99

Price: $224.99 10% off!
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FMF PowerCore 4 SA Muffler w/Stainless Steel Header - 040071
  • Patented screen-type Forest Service-approved spark arrester
  • Arrester does not hamper the exhaust flow so there is no performance loss
  • Strategic ports mean sonics evacuate more effectively with the computer-designed Performance Flow end cap
  • Improved power via square inner core technology
  • Substantial weight savings over stock


  • NOTE: This is a complete system
Specifications
Part #: 446570
Mfg #: 040071
Color - Primary Chrome
Color - Primary Silver
Style Canister Muffler
Type Muffler/Silencer w/Spark Arrestor
Units Each
Weight 4.87 lbs
Alternate/OEM Part Number(s):
FMF040071
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Resources & Manuals
Fitment for FMF PowerCore 4 SA Muffler w/Stainless Steel Header - 040071

Part 446570 fits the following machines

Yamaha
  • TT-R125 2000-2004
  • TT-R125E 2003-2009
  • TT-R125L 2000-2008
  • TT-R125LE 2003-2009, 2011-2020
Reviews & Questions
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4.8 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
5
1
0
0
0
Finish
5.0 / 5
Fit
5.0 / 5
Performance
4.8 / 5
Styling
5.0 / 5
Value
4.0 / 5
Loudness
Very Quiet
Average
Very Loud
Would you recommend this product?
Yes (1)
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
4 / 5
Great product value
Very impressed with the ease of installation, look of the product, and performance. Produces great sound but not too loud.

Nice performance mod.
October 1, 2009
Bella Vista, AR
Finish
5 / 5
Performance
5 / 5
Great Piece
This is a must have if your bike is still in stock form. You can definitely feel the additional power, and it has a very nice exhaust note. I would definitely buy again.
August 20, 2015
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Perfect
I love the FMF for alittle extra, and that it does give . makes a difference that you will notice! good buy for the $
October 14, 2009
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Good performance Sound Price
Instructions are good. Very quick fit and install. Improved acceleration. Sounds good. It does not appear that the S/A is removable as it's a spiral style that is internal.
December 26, 2011
Finish
5 / 5
Performance
5 / 5
easy to install
This was our first purchase from DK and we are impressed by the ease in on-line ordering and all the reference ratings on-line. It was easy to be sure we were ordering the right part for our bike. It was easy to install the pipe (a 12 year old did it) and it sounds great!
August 23, 2010
Sparta, MI
Finish
5 / 5
Fit
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
4 / 5
Would you recommend this product?
Yes
2017 TTR 125 LE
Bought this due to stock exhaust hitting on BBR frame cradle. This exhaust fits perfect with this mod. Can hardly tell aftermarket exhaust at idle..very quiet. But as soon as you give it some gas you can tell its aftermarket. Not too loud though and sounds very nice, like a mini 450 ;) Also opened up air box at same time and re-jetted. Entirely different bike now. Would prefer an insert to make a little quieter for back yard riding that I could take in and out but overall very happy.
March 18, 2018
Purchased
1 year ago