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Fabspeed Valvetronic Exhaust System Porsche 981 GT4 / Spyder (2015-2016)

SKU: FS.POR.981GT4.VLVP
Price
$4,630.95

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Polished Stainless Steel
Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

 

 

The Fabspeed Valvetronic Exhaust System for the Porsche 981 Cayman GT4 and 981 Boxster Spyder is a premium cat-back performance exhaust engineered to deliver both street-civil and track-wild sound profiles through advanced valved control. Precision CNC-mandrel bent 2.5″ (63.5 mm) tubing and a high-flow rear X-pipe improve exhaust flow and reduce weight compared to the factory rear muffler, while integrated valvetronic hardware lets drivers choose between mild and aggressive exhaust tones. With valves closed, the system remains refined and comfortable for daily driving; with valves open, it unleashes a deep, aggressive soundtrack complete with burbles and backfires befitting the GT4’s high-revving flat-six. Independently dyno tested, this system enhances engine response across the rev range and broadens the usable power band when paired with performance headers.

Fitment Notes

  • Designed for Porsche 981 Cayman GT4 (2015–2016) and 981 Boxster Spyder (2015–2016). 

  • Catback system that bolts onto the factory catalytic converters. 

  • Compatible with factory and high-flow race headers when pursuing maximum performance. 

  • Requires Fabspeed valve controller kit if the vehicle is not equipped with factory Porsche Sport Exhaust (PSE) control. 

  • Professional installation recommended to ensure proper valve actuation and exhaust alignment.

Included

  • Catback Valvetronic exhaust assembly with integrated valve mechanism. 

  • Choice of premium exhaust tips (e.g., matte carbon fiber or race-style single wall) depending on configuration. 

  • Mounting hardware for direct bolt-on installation. 

  • Exhaust valve control provisions (controller kit sold separately when required). 

Product Specs

  • Material: 14–16 ga T304L stainless steel for corrosion resistance and durability. 

  • Tubing: 2.5″ (63.5 mm) CNC mandrel-bent inlet tubes. 

  • Configuration: Valvetronic rear system with high-flow rear X-pipe. 

  • Weight Savings: Approx. 7 lbs lighter than the stock rear muffler system.

  • Sound Modes: Refined with valves closed; aggressive with valves open, including burbles and backfire character. 

  • Emissions: Cat-back system designed to retain OEM catalytic converters. 

Product Features

  • Two-mode exhaust tone enables refined cruising or aggressive sound at the flip of a valve.

  • Improved exhaust flow and reduced backpressure for broader power delivery and stronger throttle response. 

  • High-flow rear X-pipe enhances scavenging and creates a fuller, richer sound. 

  • Premium finish tip options let buyers personalize the visual presence of the rear exhaust.

  • Direct bolt-on installation with no cutting or welding required. 

  • Backed by Fabspeed Lifetime Warranty for confidence in long-term performance.