SPD Performance 2015-2017 Ford Expedition / Navigator 3.5L GX Series Stainless Single 3.0IN Exit Cat-Back Exhaust
Our GX Series Cat-Back Exhaust has shattered all expectations! It is designed to be aggressive but has a DRONE-FREE sound that you will love. Manufactured using […]
SPD Performance 2015-2017 Ford Expedition / Navigator 3.5L GX Series Stainless Single 3.0IN Exit Cat-Back Exhaust
Our GX Series Cat-Back Exhaust has shattered all expectations! It is designed to be aggressive but has a DRONE-FREE sound that you will love. Manufactured using 304 stainless mandrel bent 3″ tubing and GX Series stainless muffler, these cat-back systems are designed for performance and sound without the raspy note at high rpms. Our GX Series will give your Expedition or Navigator the most turbo whistle possible!
Our GX Series mufflers use sound wave canceling technology without glass or metal fiber materials. Fiber/mesh materials break down from harmonic vibrations, which is why the other brands’ exhaust systems get louder each year. All SPD exhaust products are proudly built in the USA.
Installation is a breeze, and our systems are 100% bolt-on without cutting.
First Class Customer Service & Satisfaction.
At Function Factory Performance, customer service is our top priority. We know that finding the right parts can be overwhelming, so we’re here to make the process smooth and enjoyable. We’re always ahead of the curve with our commitment to education and awareness. Let’s make this experience simple and awesome together! Don’t hesitate to call us at (480) 576-8606 or click here to reach us via email.
Make sure to follow us on Instagram: @FFPerformanceAZ and Youtube.
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Frequently Asked Questions
For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.
Either way, we’ll keep you updated so you know exactly when your parts are leaving the pit lane.
If your order ships via freight, you’ll get a separate email with a direct link to the carrier’s tracking page — easy and stress-free.
If your shipment is lost, just email or call us — we’ll help track it down and guide you through the next steps to make it right.
Follow us on Instagram, YouTube, and Facebook, and most importantly, drop us a review on Google or Yelp to let others know about your experience.
Your feedback helps us grow, create more content, and keep bringing performance-driven parts to the community.
First Class Customer Service
Customer service is our top priority. We know that finding the right parts can be overwhelming, so we’re here to make the process smooth and enjoyable. We’re always ahead of the curve with our commitment to education and awareness. Let’s make this experience simple and awesome together! Don’t hesitate to call us at +1 805 267 9762 or click here to reach us via email.
Make sure to follow us on Instagram: @FFPerformanceAZ and Youtube.
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