ARH Long Tube Headers 1-7/8" With Catted X-Pipe 3" Stainless Steel With Coarse Thread Header Bolts GT 2011-2014

American Racing Headers: MST-CY78WC
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Product Description

American Racing Headers Stainless Steel 1-7/8" Long Tube Headers with a 3" Catted X-Pipe for 2011-2014 Mustang GTs.

Ford claims 412 HP. American Racing Headers say it's considerably more! The new 5.0L Coyote Mustang is here and quicker than you can blink, ARH has a header system.

Manufactured from 304 stainless steel, ARH's longtube systems are engineered for a great fit and outstanding horsepower and torque gains throughout the RPM range. Through stock mufflers and mid pipes (and no tuning) power was up 32 RWHP. Made in the U.S.A.

-Merge collectors with scavenger spikes
-Direct bolt-in catted X-pipe
-Ultra high-flow 200 cell metallic substrate cats
-Pair of oxygen sensor extensions

-100% leak free one-piece long tube design
-3/8" thick flanges with tig welded & hand ported inlets
-1-7/8" primaries to accommodate normally aspirated or supercharged applications

*Please Note: Ford changed the thread pitch on the header bolts midway through productions. 5.0L Mustangs made from March 2010-August 2010 should order the kit that includes fine thread bolts, 5.0L Mustangs made after August 2010 should order the kit that includes coarse thread bolts.
*Please select the correct headers for your application.

Mustang Applications

This product will fit the following Ford Mustang years:

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