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FMF Racing - 042123 - PowerCore 4 Slip-On

5.04 product ratings

mxsouth (37704)

99% positive feedback

Price:

$345.67

Free shipping

Estimated delivery Sat, Oct 25 - Wed, Oct 29

Returns:

30 days returns. Seller pays for return shipping.

Condition:

New

PowerCore 4 Slip-On. Race-inspired, price-point muffler made for maximum power output. Aircraft-quality extruded aluminum canister with stainless steel components. Removable spark arrestor included on S/A models, see footnotes.

About this product

Product Identifiers

BrandFMF Racing

Manufacturer Part Number042123

eBay Product ID (ePID)171205182

Additional Product Features

Part TypePowerCore 4 Slip-On

All listings for this product

FMF Racing 42123 PowerCore 4 Slip-On

item 1 FMF Racing 42123 PowerCore 4 Slip-On

FMF PowerCore 4 Slip-On Muffler 042123 for Kawasaki KX450F/KLX450R

item 2 FMF PowerCore 4 Slip-On Muffler 042123 for Kawasaki KX450F/KLX450R

FMF PowerCore 4 Slip-On Pipe Kawasaki KLX450R 2008-2009/KX450F 06-2008 [042123]

item 3 FMF PowerCore 4 Slip-On Pipe Kawasaki KLX450R 2008-2009/KX450F 06-2008 [042123]

FMF Powercore 4 Spark Arrestor Slip-On Muffler (042123)

item 4 FMF Powercore 4 Spark Arrestor Slip-On Muffler (042123)

FMF Powercore4 Slip-On Exhaust Pipe Muffler Kawasaki KX450F KX450 06-08 - 042123

item 5 FMF Powercore4 Slip-On Exhaust Pipe Muffler Kawasaki KX450F KX450 06-08 - 042123

FMF Powercore 4 Slip On Exhaust 042123 Kawasaki KX450F KX 450F 06-08

item 6 FMF Powercore 4 Slip On Exhaust 042123 Kawasaki KX450F KX 450F 06-08

FMF PowerCore 4 Slip-On Muffler Kawasaki KX450F 06-08 KLX450R 08-09 042123

item 7 FMF PowerCore 4 Slip-On Muffler Kawasaki KX450F 06-08 KLX450R 08-09 042123

FMF Racing 042123 PowerCore 4 Slip-On Natural

item 8 FMF Racing 042123 PowerCore 4 Slip-On Natural

FMF 042123 Powercore 4 Muffler

item 9 FMF 042123 Powercore 4 Muffler

FMF Racing Exhaust PowerCore 4 Slip-On Kawasaki KX450F 042123 Exhaust 27-1035

item 10 FMF Racing Exhaust PowerCore 4 Slip-On Kawasaki KX450F 042123 Exhaust 27-1035

FMF Racing - 042123 - PowerCore 4 Slip-On

item 11 FMF Racing - 042123 - PowerCore 4 Slip-On

FMF Powercore 4 Spark Arrestor Slip-On Muffler (042123)

item 12 FMF Powercore 4 Spark Arrestor Slip-On Muffler (042123)

FMF Racing PowerCore 4 Slip-On - 042123

item 13 FMF Racing PowerCore 4 Slip-On - 042123

Fmf Racing 042123 PowerCore 4 Slip-On (Natural)

item 14 Fmf Racing 042123 PowerCore 4 Slip-On (Natural)

FMF 042123 Powercore 4 Muffler

item 15 FMF 042123 Powercore 4 Muffler

FMF Racing Powercore 4 Muffler 042123

item 16 FMF Racing Powercore 4 Muffler 042123

Kawasaki KX450F 2006-2008 FMF Exhaust PowerCore 4 Slip-On 042123

item 17 Kawasaki KX450F 2006-2008 FMF Exhaust PowerCore 4 Slip-On 042123

FMF Racing PowerCore 4 Slip-On 42123

item 18 FMF Racing PowerCore 4 Slip-On 42123

Kawasaki KX 450F FMF Racing 42123 PowerCore 4 Slip-On

item 19 Kawasaki KX 450F FMF Racing 42123 PowerCore 4 Slip-On

FMF Racing 042123 PowerCore 4 Slip-On for Exhaust Slip-On / Silencers wt

item 20 FMF Racing 042123 PowerCore 4 Slip-On for Exhaust Slip-On / Silencers wt

FMF Racing PowerCore 4 Slip-On 42123

item 21 FMF Racing PowerCore 4 Slip-On 42123

FMF 042123 Powercore 4 Muffler

item 22 FMF 042123 Powercore 4 Muffler

42123 PowerCore 4 Slip-On - FMF Racing FMF Racing

item 23 42123 PowerCore 4 Slip-On - FMF Racing FMF Racing

+$7.99 shipping

FMF 1821-0672 042123 Powercore 4 Slip-On Muffler Powercore 4 Muffler

item 24 FMF 1821-0672 042123 Powercore 4 Slip-On Muffler Powercore 4 Muffler

08-'10 for Kawasaki KLX450R FMF Powercore 4 Muffler

item 25 08-'10 for Kawasaki KLX450R FMF Powercore 4 Muffler

FMF Racing PowerCore 4 Slip-On Exhaust Muffler 42123

item 26 FMF Racing PowerCore 4 Slip-On Exhaust Muffler 42123

FMF 042123 Powercore 4 Muffler Fits Kawasaki KX450F 2006-2008

item 27 FMF 042123 Powercore 4 Muffler Fits Kawasaki KX450F 2006-2008

FMF Racing High Performance PowerCore 4 Slip-On Exhaust Muffler Set 42123

item 28 FMF Racing High Performance PowerCore 4 Slip-On Exhaust Muffler Set 42123

FMF Powercore 4 Muffler 042123

item 29 FMF Powercore 4 Muffler 042123

FMF Racing PowerCore 4 Slip-On 42123

item 30 FMF Racing PowerCore 4 Slip-On 42123

FMF Offroad Powercore 4 Exhaust POWERCORE 4 MUFFLER Slip-On Muffler - 042123

item 31 FMF Offroad Powercore 4 Exhaust POWERCORE 4 MUFFLER Slip-On Muffler - 042123

+$7.95 shipping

FMF Racing PowerCore 4 Slip-On 42123

item 32 FMF Racing PowerCore 4 Slip-On 42123

+$9.95 shipping

FMF Powercore 4 Muffler 042123

item 33 FMF Powercore 4 Muffler 042123

+$12.00 shipping

FMF Racing PowerCore 4 Slip-On 42123

item 34 FMF Racing PowerCore 4 Slip-On 42123

+$12.95 shipping

PowerCore 4 Slip On Exhaust FMF 042123 For 06-08 KX450F & 08-09 KLX450R

item 35 PowerCore 4 Slip On Exhaust FMF 042123 For 06-08 KX450F & 08-09 KLX450R

FMF Powercore4 Full Exhaust w/Powerbomb Head Pipe Kawasaki KX450F KX450 06-08

item 36 FMF Powercore4 Full Exhaust w/Powerbomb Head Pipe Kawasaki KX450F KX450 06-08

listings for this product

Ratings and Reviews

5.0

4 product ratings

4 users rated this 5 out of 5 stars
0 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

by kashutdehme_2
Sep 16, 2025
Brand new, great performance, easy to in...
Brand new, great performance, easy to install great pricing
Verified purchase: YesCondition: New
by A62aQcZ6Q0S@Deleted
Jan 30, 2017
It is what it is. Woke this bike up!
Verified purchase: YesCondition: New

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