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Valvetronic Valved Sport Exhaust System for Porsche 718 GT4 / GTS/ Boxster Spyder

POR.718.GT4.VSES.TI
In stock
$3,899.99
Porsche 718 GT4 / GTS/ Boxster Spyder – Valved Exhaust System Titanium Rear Section • F1 Race Headers • OEM Valve Integration Overview The Porsche 718 GT4 and Boxster Spyder are outstanding driver’s cars, but their factory exhaust note lacks the character and intensity enthusiasts expect. Valvetronic Designs changes that. Drawing from our development of the 992 GT3 RS and GT4 RS platforms, this valved exhaust system injects the high-pitch exotic tone Porsche purists crave—transforming the flat stock sound into something truly spine-tingling. This system blends lightweight titanium craftsmanship, race-inspired headers, and OEM-level integration to deliver a raw, emotional sound without compromising drivability. Key Components Signature Titanium Rear Section Crafted from premium Grade 5 titanium for extreme weight savings and durability. Features a center X-pipe to balance pulses and create a smoother, sharper high-pitched tone. Delivers the exotic character reminiscent of Porsche’s naturally aspirated GT engines. T304 Stainless Steel Over-Axle Pipes Built with integrated heat shielding to protect surrounding components. Maintains durability under extreme temperatures while improving exhaust flow. Free Flow F1 Race Headers Equal-length T304 stainless design, tuned for sharper pitch and higher-frequency tones. Unlocks the raw, motorsport-inspired wail similar to the 981 GT4 and GT3 engines. OEM Valve...

Product Details

Everything You Need To Know

Review product information, shipping and returns, and price-match details before you order.

Porsche 718 GT4 / GTS/ Boxster Spyder – Valved Exhaust System

Titanium Rear Section • F1 Race Headers • OEM Valve Integration


Overview

The Porsche 718 GT4 and Boxster Spyder are outstanding driver’s cars, but their factory exhaust note lacks the character and intensity enthusiasts expect. Valvetronic Designs changes that. Drawing from our development of the 992 GT3 RS and GT4 RS platforms, this valved exhaust system injects the high-pitch exotic tone Porsche purists crave—transforming the flat stock sound into something truly spine-tingling.

This system blends lightweight titanium craftsmanship, race-inspired headers, and OEM-level integration to deliver a raw, emotional sound without compromising drivability.


Key Components

Signature Titanium Rear Section

  • Crafted from premium Grade 5 titanium for extreme weight savings and durability.

  • Features a center X-pipe to balance pulses and create a smoother, sharper high-pitched tone.

  • Delivers the exotic character reminiscent of Porsche’s naturally aspirated GT engines.

T304 Stainless Steel Over-Axle Pipes

  • Built with integrated heat shielding to protect surrounding components.

  • Maintains durability under extreme temperatures while improving exhaust flow.

Free Flow F1 Race Headers

  • Equal-length T304 stainless design, tuned for sharper pitch and higher-frequency tones.

  • Unlocks the raw, motorsport-inspired wail similar to the 981 GT4 and GT3 engines.

OEM Valve Integration

  • Fully compatible with Porsche’s PSE button via factory vacuum lines.

  • Operates seamlessly:

    • Valves Open: Maximum flow, aggressive tone, exotic high-pitch sound.

    • Valves Closed: Routed through quad-chamber mufflers for significantly reduced volume, ideal for long drives or discreet use.

  • Optional standalone controller included for independent valve control.


Why Upgrade?

From the factory, the 718 GT4 and Spyder sound muted and flat. Our system transforms the experience, pulling inspiration from Porsche’s greatest engines to create a soundtrack worthy of the chassis.

  • Aggressive & Emotional: High-pitched notes reminiscent of a GT3.

  • Daily Driveable: Docile when valves are closed, aggressive when open.

  • Performance-Oriented: Optimized flow for sharper throttle response and improved tone.


Technical Highlights

  • Weight Savings: 34.8 lbs lighter than stock.

  • Precision TIG Welding: Hand-built for strength and beauty.

  • Reversible Design: 100% bolt-on, return to stock anytime.

  • OEM Valve Control: No compromises—factory operation retained.


Fitment

  • 2020+ Porsche 718 Cayman GT4

  • 2020+ Porsche 718 Boxster Spyder

  • 2020+ Porsche 718 GTS (4.0)

⚠️ Note on Bracket Design:
Early 2020 GT4/Spyder models (built before February 2020) use different exhaust brackets than later models. Please check your car’s bracket style before ordering. For reference please see the this photo.

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In Stock Items:
In stock items typically ship within 1-3 business days. Most items arrive within 2 business days, but there are situations where it may take up to 5 business days.

Special Order Items:
Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

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