From the leader in late-model exhaust technology comes the industry’s most advanced long-tube headers for 2003-2004 Mustang Cobras and Mach Is. SLP’s new DOHC headers employ 1 3/4" primaries and venturi-style velocity collectors to optimize exhaust flow, resulting in phenomenal horsepower increases. They’re compatible with all factory emissions equipment and feature 100 percent stainless steel construction for unrivaled durability. No other DOHC long-tube header offers this combination of features—at any price!
Provides dyno-proven increases of over 30 rear-wheel hp when paired with one of our matching "shorty"-style X-pipes
Hand-crafted in the U.S.A. from mandrel-bent 409 stainless steel
Aluminum-ceramic-coated to keep heat in, exhaust velocities up, and under-hood temperatures down (M30002 only)
Equipped with venturi-type velocity collectors to maximize exhaust scavenging
Compatible with all factory emissions equipment
Includes detailed instructions and all necessary installation hardware—no additional fabrication required!
Fits 2003-2004 Cobra and Mach I models (other fitments pending)
NOTE: Not legal for use on pollution-controlled motor vehicles. Convertible models may require modifications to factory K-member cross brace.
Blow-By Racing is not responsible for any prices changes, mis-mark items , or any other mis-printed items.