Fi Exhaust 2017-2023 Mclaren 720S Cat-Back T304 SS Valvetronic Exhaust Suite
Experience a deeper, sharper, and fully controllable exhaust note with the FI Exhaust T304 Valvetronic Cat-Back System for the McLaren 720S.
Features:
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Premium T304 stainless steel construction for strength and durability
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Valvetronic system for adjustable sound: quiet when you need it, aggressive when you want it
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Optimized exhaust flow for improved throttle response
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Precision-built and bolt-on compatible with the factory setup
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Designed specifically for 2017–2023 McLaren 720S
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Produces a signature exotic supercar tone with valves open
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Track-proven reliability and performance
⚠ Lead Time & Order Terms
Required Reading
Fi EXHAUST components are bespoke production items — manufactured on demand specifically for your order. Materials are allocated and manufacturing begins as soon as your order is placed. The order cannot be cancelled, refunded, or returned for any reason including change of mind, longer-than-expected lead time, fitment compatibility (verify before ordering), shipping delays, or any other reason. By purchasing this product, you acknowledge and agree to these terms and to FFP’s full Terms & Conditions.
Before You Order
Why is the lead time so long?
Fi EXHAUST is not a stocked product line. Every catback, downpipe, and header pair is hand-built at Fi’s Taiwan facility when ordered — T304 stainless mandrel-bent, TIG welded, valvetronic actuators fitted, tip finish applied, then bench-tested before shipping. The 4–8 week window covers production + air freight from Taiwan to FFP’s Thousand Oaks shop, then to you.
Why no refunds or cancellations?
Because Fi allocates raw materials and starts production within hours of order receipt. Materials are cut, bent, and welded to your exact spec (tip color, configuration). There is no resale market for a half-built bespoke exhaust. This is the same model every premium exhaust maker (Akrapovič, iPE, Capristo, ARMYTRIX) uses for made-to-order systems. We’re straight with you about it up front.
How do I know it will fit my car?
Message us BEFORE you order. Send VIN, trim package, and any modifications (downpipe, headers, sport cats, OPF delete). We verify against Fi’s fitment database and confirm before you commit. Once the order is placed, fitment confirmation is your responsibility — we cannot accept returns for fitment issues that pre-order verification would have caught.
Will this trigger a CEL (Check Engine Light)?
Depends on the product. Valvetronic muffler catbacks generally retain factory cats/OPF and do not trigger a CEL. Catless downpipes / headers / Race Version full systems remove emissions hardware and will trigger a CEL unless paired with a tune or O2 simulator. Each product page calls out CEL risk in the fitment section — read carefully or ask us.
Do I need to tune my car?
Catback-only installs (this product type) do not require a tune — valves run off the factory exhaust control signal. Catless / Race Version installs typically require tuning or a CEL fix. We coordinate tuning through our trusted partners (Cobb, EMS, MHD, etc.) if needed.
What if there’s a manufacturing defect?
Fi EXHAUST covers manufacturing defects under their published warranty. FFP coordinates the claim directly with Fi on your behalf — you don’t deal with Taiwan customs or factory back-and-forth. Defects are rare; Fi has built valvetronic systems since 2013 and the QC is industry-leading.
Can I get faster shipping?
The 4–8 week window is dominated by production time, not shipping. Air freight is included. There is no “rush production” option from Fi.
Exhaust Fitment:
| Feature | Value |
| Model | McLaren 720S |
| Model Year | 2017-2023 |
| Engine | V8 |
| OPF / Non-OPF Vehicle | Non-OPF Vehicles |
Exhaust System Components:
This exhaust system package includes the following components:
- Muffler
- Exhaust Tips
- Optional Downpipes
Please note that if the exhaust comes with a standard remote and you choose to upgrade to the Fi Pro remote, the standard remote will no longer be included in the shipment.
Crafted from premium T304 stainless steel, this direct bolt-on system delivers an exhilarating soundtrack that complements the McLaren 720S’ dynamic capabilities.
Equipped with Valvetronic technology, the Fi McLaren 720S exhaust system enables precise control over airflow, sound volume, and overall performance, thereby enhancing both power and torque.
With a complete catless system, including a valvetronic catback and ultra-high flow downpipe, horsepower gains of 5-10% can be expected on average.
During low-profile cruising, the closed valves channel exhaust gases through the muffler, ensuring a comfortable ride. However, with the valves fully open, the system unleashes an intense and sporty soundtrack, amplifying the driving experience.
Switching between street and race modes is seamless, whether through factory exhaust/sport buttons, drive modes, or the Fi Pro remote control upgrade.
Availability may vary depending on your car model and exhaust setup; please refer to the add-on section and consult our representative for confirmation.
Behind the unique sound and performance lies meticulously designed muffler internals, tailored to deliver an unparalleled driving experience specifically for this car model.
Exhaust Fitment:
Please read our Shipping & Return policy for questions related to the exhaust fitment.
Product Images: Our product images may feature a catback exhaust system with downpipes/headers for reference. However, please note that downpipes/headers are not included with the purchase of the catback exhaust system and must be purchased separately.
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FREQUENTLY ASKED QUESTIONS
If it's in stock and ready to roll, your order usually hits the road within 1–3 business days.
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.
Absolutely! Once your order ships, you'll receive an email with a tracking link so you can follow its journey from our shop to your doorstep.
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.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
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.
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