Does the Fabspeed Valvetronic Exhaust System fit my G 63?

Yes, for the 2019 and newer W463A Mercedes-AMG G 63 with the 4.0L twin-turbo V8. It is a direct bolt-on for US-specification vehicles with the factory side-exit exhaust. It does not fit the 2015-2018 W463 G 63 (M157 5.5L V8), which uses a different system; a dedicated MaxFlo exhaust is offered for that vehicle.

How loud is it, and can I keep it quiet around town?

Yes. The valved design gives you adjustable sound control: closed, the system stays civil and drone-free for daily driving; opened, it releases a deeper, harder-edged twin-turbo V8 note with real volume and presence. You decide when the G 63 stays subtle and when it announces itself.

Is installation bolt-on?

Yes. The system is a direct bolt-on replacement for the side-mounted factory mufflers, sealed with aerospace-grade T321 stainless steel V-band clamps and requiring no cutting, welding or tuning. Most owners have it fitted in a few hours at an independent shop, and the V-band connections make future service straightforward.

Does it affect emissions or the factory warranty?

Fabspeed builds this as an emissions-compliant catback that replaces only the rearmost mufflers and leaves the upstream emissions hardware in place. Nothing forward of the muffler section is altered, so the factory emissions equipment is untouched and the install is fully reversible.

What are the tips, and what finishes are available?

The system is finished with triple oval tips offered in five styles, Polished Stainless, Carbon Fiber, Satin Black, Titanium and Clear, selected at checkout so you can match the look to the vehicle. Connections use aerospace-quality T321 stainless steel V-band clamps, and the system carries Fabspeed's lifetime warranty.

Description

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Description

Fabspeed Valvetronic Exhaust System w/ Triple Tips for W463 Mercedes-AMG G 63

Give the W463 Mercedes-AMG G 63 the voice and vigor it deserves with Fabspeed’s Valvetronic Exhaust System with Triple Tips — a simple, direct bolt-on replacement for the factory’s extremely restrictive side-mounted mufflers. Engineered to free flow and add real power, it delivers a sharper, authentic sports-car soundtrack with valved control for around-town civility or wide-open intensity. The system arrives complete with aerospace-quality T321 stainless V-band attachment clamps for precise, leak-free installation, and offers your choice of triple OVAL tips, carbon fiber tips, or titanium tips to match your build.

Features

Guaranteed more sports car sound, power and gas mileage
Lightweight compared to factory equipment
Includes triple tips in your choice of finish
Complies with emissions and warranty, simple bolt-on direct replacement system
All Fabspeed performance products are backed by the Fabspeed lifetime warranty

Applications

Mercedes-AMG G 63: W463A | 2019-present | 4.0L Twin-Turbo V8

Notes

All Fabspeed products are expected to ship within one week of order, though timelines are often much quicker
Designed for US vehicles with side exit exhaust systems only

Frequently Asked Questions

Does the Fabspeed Valvetronic Exhaust System fit my G 63? Yes, for the 2019 and newer W463A Mercedes-AMG G 63 with the 4.0L twin-turbo V8. It is a direct bolt-on for US-specification vehicles with the factory side-exit exhaust. It does not fit the 2015-2018 W463 G 63 (M157 5.5L V8), which uses a different system; a dedicated MaxFlo exhaust is offered for that vehicle.
How loud is it, and can I keep it quiet around town? Yes. The valved design gives you adjustable sound control: closed, the system stays civil and drone-free for daily driving; opened, it releases a deeper, harder-edged twin-turbo V8 note with real volume and presence. You decide when the G 63 stays subtle and when it announces itself.
Is installation bolt-on? Yes. The system is a direct bolt-on replacement for the side-mounted factory mufflers, sealed with aerospace-grade T321 stainless steel V-band clamps and requiring no cutting, welding or tuning. Most owners have it fitted in a few hours at an independent shop, and the V-band connections make future service straightforward.
Does it affect emissions or the factory warranty? Fabspeed builds this as an emissions-compliant catback that replaces only the rearmost mufflers and leaves the upstream emissions hardware in place. Nothing forward of the muffler section is altered, so the factory emissions equipment is untouched and the install is fully reversible.
What are the tips, and what finishes are available? The system is finished with triple oval tips offered in five styles, Polished Stainless, Carbon Fiber, Satin Black, Titanium and Clear, selected at checkout so you can match the look to the vehicle. Connections use aerospace-quality T321 stainless steel V-band clamps, and the system carries Fabspeed’s lifetime warranty.

About Fabspeed

Fabspeed Motorsport is situated in Fort Washington, Pennsylvania, within the United States of America. Their extensive 26,000 sqft. facility serves as a hub for various car clubs, including Porsche Club of America, Ferrari, McLaren, Lamborghini, and more. The company is renowned for its comprehensive approach to product development. They handle the entire process, from design and engineering to dyno testing, street trials, and racing assessments, ensuring the quality and performance of every item. Fabspeed also collaborates closely with race engine builders and tuners hailing from Italy, Germany, and the United States, resulting in the creation of the Ultimate Performance parts. To cater to their passionate global audience, Fabspeed meticulously crafts systems using aerospace-grade austenitic stainless steel, titanium, and carbon fiber materials, setting a standard for excellence in the industry.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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