Valvetronic Designs - Valved Sport Exhaust System for Porsche 718 GT4 / GTS/ Boxster Spyder
- Description
- Fitment
- Refund Policy
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
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Crafted from premium Grade 5 titanium for extreme weight savings and durability.
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Features a center X-pipe to balance pulses and create a smoother, sharper high-pitched tone.
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Delivers the exotic character reminiscent of Porsche’s naturally aspirated GT engines.
T304 Stainless Steel Over-Axle Pipes
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Built with integrated heat shielding to protect surrounding components.
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Maintains durability under extreme temperatures while improving exhaust flow.
Free Flow F1 Race Headers
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Equal-length T304 stainless design, tuned for sharper pitch and higher-frequency tones.
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Unlocks the raw, motorsport-inspired wail similar to the 981 GT4 and GT3 engines.
OEM Valve Integration
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Fully compatible with Porsche’s PSE button via factory vacuum lines.
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Operates seamlessly:
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Valves Open: Maximum flow, aggressive tone, exotic high-pitch sound.
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Valves Closed: Routed through quad-chamber mufflers for significantly reduced volume, ideal for long drives or discreet use.
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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.
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Aggressive & Emotional: High-pitched notes reminiscent of a GT3.
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Daily Driveable: Docile when valves are closed, aggressive when open.
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Performance-Oriented: Optimized flow for sharper throttle response and improved tone.
Technical Highlights
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Weight Savings: 34.8 lbs lighter than stock.
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Precision TIG Welding: Hand-built for strength and beauty.
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Reversible Design: 100% bolt-on, return to stock anytime.
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OEM Valve Control: No compromises—factory operation retained.
Fitment
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2020+ Porsche 718 Cayman GT4
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2020+ Porsche 718 Boxster Spyder
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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.
Returns
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. All items are subject to 15% restocking fee from the manufacturer.
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.
Additional non-returnable items:
Gift cards
Downloadable software products
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
If you would like to start a return please click here
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at info@amtuning.ca.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Labor Fees (if applicable)
AM Tuning Canada is not responsible for, and shall not be liable for, any labor fees, installation charges, removal charges, diagnostic fees, or other service-related costs incurred by the customer or any third party in connection with the installation, removal, modification, servicing, or use of any products purchased from AM Tuning Canada. Unless expressly agreed to in writing by AM Tuning Canada, all such labor and service costs are the sole responsibility of the customer.
Exchanges (if applicable)
To start an exchange, click here
Non-refundable items
The following items are non-refundable and non-returnable once purchased: oils, fuel or oil additives, filters, tuning cables, OBDeleven products, Braum seats, spark plugs, coil packs, and similar consumable, wheel spacers, wheels bolts, license plate brackets, electronic tuning components and any other product subject to discretion of AM Tuning Canada.
Other products from brands such as MHD, Bootmod3, Ecutek, Braum racing, Novitec are also non-refundable and non-returnable.
All sales of these items are final and are subject to the policies and discretion of AM Tuning. By completing a purchase, the customer acknowledges and agrees to these terms.
