Off-Road/MX Motorcycle Exhausts - Four Stroke Headers

Exhaust headers for four stroke dirt bikes are available in this section. An exhaust muffler will be required to be combined with headers to build a full exhaust. Headers come in a variety of styles from brands like FMF or Pro Circuit and can be mixed and match with various mufflers, depending on what kind of riding you're doing and what your performance goals are.

Shop by Brand: FMF | Pro Circuit

FMF Powerbomb Header for KX450F 06-11 FMF Powerbomb Header for WR450F 07-11 FMF Megabomb Header for CRF250R 10-12 FMF Megabomb Header for CRF450R 09-10
$199.99 $169.99
Available, only 2 left Ships Wed, Oct 18 if ordered within 3hr 41min 
$199.99 $169.99
Available, only 3 left Ships Wed, Oct 18 if ordered within 3hr 41min 
From $233.74
$274.99 $233.74
Available, only 1 left Ships Mon, Oct 23 if ordered within 3hr 41min 
 
FMF Megabomb Header for WR450F 07-11 FMF Megabomb Header for CRF250X 04-09 FMF Megabomb Header for RM-Z450 08-10 Pro Circuit Headpipe for CRF450R 05
From $233.74
$274.99 $233.74
Available, only 1 left Ships Wed, Oct 18 if ordered within 3hr 41min 
$274.99 $233.74
Available, only 1 left Ships Mon, Oct 23 if ordered within 3hr 41min 
From $169.96
 
FMF Megabomb Header for CRF450R 13-14 Pro Circuit Headpipe for CRF450X 05-15 FMF Powerbomb Header for KX250F 09-16 Pro Circuit Headpipe for CRF250R 04-05
From $233.74
From $169.96
$199.99 $169.99
Available, only 3 left Ships Mon, Oct 23 if ordered within 3hr 41min 
$199.95 $169.96
Available, only 2 left Ships Mon, Oct 23 if ordered within 3hr 41min 
 
FMF Powerbomb Header for CRF250R 04-05 FMF Powerbomb Header for YZ400F 98-02 FMF Megabomb Header for CRF150R 07-16 FMF Megabomb Header for WR250F 01-11
$199.99 $169.99
Available, only 2 left Ships Wed, Oct 18 if ordered within 3hr 41min 
$199.99 $189.99
Available, only 1 left Ships Mon, Oct 23 if ordered within 3hr 41min 
From $233.74
$274.99 $233.74
Available, only 4 left Ships Mon, Oct 23 if ordered within 3hr 41min 
 
FMF Powerbomb Header for RM-Z250 10-12 FMF Powerbomb Header for CRF450X 05-08 FMF Megabomb Header for CRF250R 06-09 FMF Megabomb Header for 250 XCF-W 07
$199.99 $169.99
Available, only 3 left Ships Mon, Oct 23 if ordered within 3hr 41min 
$199.99 $169.99
Available Ships Wed, Oct 18 if ordered within 3hr 41min 
$274.99 $233.74
Available, only 2 left Ships Mon, Oct 23 if ordered within 3hr 41min 
From $207.89
 
FMF Powerbomb Header for YZ450F 07-09 FMF Megabomb Header for 450 SX-F 07-12 FMF Megabomb Header for KX250F 09-16 FMF Powerbomb Header for CRF450R 13-14
$199.99 $169.99
Available, only 3 left Ships Wed, Oct 18 if ordered within 3hr 41min 
From $389.49
From $233.74
$199.99 $169.99
Available, only 1 left Ships Mon, Oct 23 if ordered within 3hr 41min 
 
FMF Megabomb Header for YZ250F 07-09 FMF Megabomb Header for WR450F 03-06 FMF Megabomb Header for KX450F 12-16 FMF Powerbomb Header for CRF150R 07-14
$274.99 $233.74
Available, only 2 left Ships Mon, Oct 23 if ordered within 3hr 41min 
From $233.74
From $233.74
$199.99 $169.99
Available, only 4 left Ships Mon, Oct 23 if ordered within 3hr 41min 
 
Pro Circuit Headpipe for YZ250F 07-08 Pro Circuit Titanium Header for 625 SXC Adventure 04-05 FMF Megabomb Header for CRF450R 04-08 FMF Megabomb Header for YZ250F 10-13
$199.95 $169.96
Available, only 1 left Ships Mon, Oct 23 if ordered within 3hr 41min 
$574.95 $488.71
May need 1-5 business days to ship 
$274.99 $233.74
Available, only 4 left Ships Wed, Oct 18 if ordered within 3hr 41min 
From $233.74
 
Pro Circuit Headpipe for RM-Z450 08-09 FMF Megabomb Header for 505 SX-F 08 FMF Megabomb Header for CRF450R 11-12 FMF Powerbomb Header for YZ250F 07-09
$199.95 $169.96
Available, only 1 left Ships Mon, Oct 23 if ordered within 3hr 41min 
From $389.49
From $233.74
From $169.99
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