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FMF 025069 Fatty Pipe Expansion Chamber for KTM 250/300 2-Stroke

(2004-2005 KTM 300 EXC; 2006-2008 KTM 300 XC; 2006-2009 KTM 250 XC; 2006-2008 KTM 300 XC-W; 2004-2005 KTM 250 EXC; 2004-2005 KTM 300 MXC + 3 more models)

Part of: FMF Fatty Pipe Expansion Chamber

Other options in this family: FMF 020375 FMF 024053 FMF 021044 FMF 021036 FMF 024034

Manufacturer

Picture for manufacturer FMF

Part Number

025069
11 reviews
Sale Price

$279.74

4 left at this price

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Usually delivered within 2 days

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The FMF Fatty Pipe is the most copied expansion chamber in the motocross world, delivering a proven performance upgrade for KTM 250cc and 300cc two-stroke models including EXC, MXC, and SX variants. This iconic pipe has earned its reputation through decades of championship-winning performance and reliable power gains.

Key Features:

  • Broader, smoother powerband throughout the RPM range for improved rideability
  • Durable nickel-plated finish resists corrosion and maintains appearance
  • Precision-engineered expansion chamber design optimizes exhaust flow
  • Includes replacement O-rings for proper installation and sealing
  • 100% manufactured in the USA with FMF's quality standards

The Fatty Pipe's design focuses on delivering usable power across a wider powerband rather than peak horsepower alone, making it ideal for riders who want enhanced performance without sacrificing control. The nickel-plated steel construction provides excellent heat dissipation and long-term durability in demanding off-road conditions.

Products specifications

Fits

2004-2005 KTM 300 EXC; 2006-2008 KTM 300 XC; 2006-2009 KTM 250 XC; 2006-2008 KTM 300 XC-W; 2004-2005 KTM 250 EXC; 2004-2005 KTM 300 MXC; 2006-2008 KTM 250 XC-W; 2004-2005 KTM 250 EXC 4-Stroke; 2007-2008 KTM 250 XCF-W

Great shopping experience, very easy and straight forward Way to shop.

Great Prices!!! Fast shipping

everything is great, just pictures aren't matching the products you are buying.

ok

fast and easy!!

Quick and easy

Overall good transaction had to go through PayPal to make the purchase, wasn't allowing me to use card info.

so far so good. keep it up

These guys had a part that I was searching for for a long time. Not only that, but they had 2 in stock when nobody else did. I will definitely be looking here first next time I am buying auto parts.

Great information on product and fitment and low prices

Good...so far.

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