American Racing Headers Long System – 2015-2023 Mustang GT 5.0L

The sixth generation of Mustangs brought performance and handling to a whole new level, but power and torque as still waiting to be unleashed from an anemic factory exhaust. With header systems in 1-3/4", 1-7/8" or 2" (for max effort applications) and a 3" exhaust, our Long System unlocks that power with performance gains up to 30 RWHP. A simple mark and cut (no welding required) mates the ARH Long System to your existing Axelback. Comes with a 3" X-Pipe standard.

Fits

• 2015-2023 Mustang GT 5.0L

Features

• 100% Made in the
• USA - Never
• Outsourced
• Made entirely of
• 304 stainless steel
• 3/8" thick laser-cut flanges for a warp-free seal
• Hand-ported

ARH lists its products for racing use only.

Satera Tuning handles the install.

Want it installed? Our technicians can install it at our shop in Marengo, IL, and we tune it on our in-house chassis dyno, by appointment. Street tuning dials in drivability.

Not local? Many Mopar and Ford combinations can be tuned remotely with HP Tuners.

Submit a work request and we'll confirm fitment, install and tuning for your car. Shop rates are listed on our Rates & Terms page.

Lead time depends on the manufacturer and on our shop schedule, so it varies by part. If you need something by a certain date, contact us before ordering and we'll check current availability.

See our returns and warranty policy for the details on returns and exchanges.