SPDZ1 1 7/8" Longtube Headers & X-Pipe – 2015–2023 Mustang GT 5.0L Coyote

Unlock the full potential of your 2015–2023 Mustang GT 5.0L Coyote with the SPDZ1 1 7/8" Longtube Headers & X-Pipe System. Engineered for enthusiasts who demand real horsepower gains and a race-inspired exhaust note, this complete system is built to outperform stock and budget alternatives.

Crafted from premium 304 stainless steel with precision TIG welds and CNC-machined flanges, SPDZ1 headers are designed for maximum durability, perfect fitment, and unrestricted exhaust flow. The included 3” X-Pipe balances exhaust pulses for improved scavenging, sharper throttle response, and an aggressive tone that commands attention on the street or track.

✅ Key Features

• Mandrel-Bent 1 7/8” Primaries – Large-diameter tubing for maximum airflow & horsepower

• 3” Collector with Merge Spike – Improves exhaust velocity and scavenging efficiency

• True Longtube Header Design – Gains of 25+ rwhp with proper tuning

• Precision TIG-Welded Joints – Strong, clean welds built for high-performance heat cycles

• CNC-Machined, Port-Matched Flanges – Leak-free seal and OE-level fitment

• Full 304 Stainless Steel Construction – Corrosion-resistant natural stainless finish

• Graphite Manifold Gaskets & Hardware Included – Ready-to-install performance upgrade

• X-Pipe Included – Optimizes exhaust tone & flow for balanced performance

⚠️ Fitment Notes

• Fits 2015–2023 Mustang GT 5.0L Coyote engines

• Gen 1 (2011) and some Gen 3 (2018+) Coyote engines may use M10x1.25 header bolts

• Late Gen 1 (2011) & Gen 2 (2015–2017) typically use M10x1.5 header bolts

• Please confirm thread pitch before installation

• We suggest the use of our O2 extension wires for a quick easy install, you can purchase the 2015-2017 hardnesses here, and the 2018+ harnesses here.

💡 Why Choose SPDZ1?
Unlike mass-produced budget options, every SPDZ1 header system is dyno-tested, track-proven, and built to last. From stronger welds to precision collectors, SPDZ1 delivers the power, sound, and reliability your Mustang deserves.

📦 Includes: Headers, X-Pipe, gaskets, clamps & installation hardware

👉 Take your Coyote to the next level with SPDZ1 — proven power, unmatched quality, and aggressive sound in one complete package.

IN STOCK AND READY TO SHIP!!