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Fabspeed Mercedes-Benz G63 AMG 2nd link comp. Pipes with XperTune Performance Software (2019+)

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Eliminate the heavy and restrictive factory secondary G-Wagen catalytic converters with a CNC mandrel bent high flowing stainless steel downpipes for maximum power and an exhilarating sound. The perfect combination for maximum power without the worry of a check engine light. The Mercedes G-Wagen has strict software parameters which requires the Fabspeed XperTune to maximize power and harness the increased exhaust flow without any negative affects on the driving experience. The Secondary Cat Bypass Pipes cannot be purchased separately. 


  • Fits all Mercedes-Benz G63 AMG Vehicles (2019+) (XperTune Performance Software Included and Required for vehicle to run properly)
  • T304L Stainless Steel one piece CNC mandrel bent pipes to replace the secondary redundant OEM restrictive catalytic converters.
  • Guaranteed No Check Engine Lights.
  • Simple direct replacement bolt-on for the stock secondary Left and Right OEM catalytic converters. Requires a simple cut at one location per side on each secondary catalytic converter inlet pipe in order to install the Fabspeed bypass pipes. 
  • Includes a Left and Right secondary cat bypass pipe, two Torca clamps, two V-Band Clamps and a cutting template for a simple quick slip-on installation. 
  • Guaranteed more sports car sound and power with the included ECU tune. As well as an improvement in gasoline mileage all in one elegant solution.
  • The smart intelligent way to maximize performance.
  • Special requests and tune file upgrades may be subject to additional fees.

INSTALLATION: Bolt-On Installation - Minor cutting required to install the Fabspeed product (Reference Cutting Template)

NOTES: Technical information for G-WAGEN owners: Primary G-Wagen catalytic converters were not designed and offered by Fabspeed Motorsport USA- WHY you might ask? Fabspeed discovered that Mercedes Benz instructs and REQUIRES that the transmission must be entirely removed to remove the primary and secondary catalytic converters. A huge time consuming project that is not feasible. This is why Fabspeed designed Maxflo catback exhaust and also secondary slip on cat bypass pipes to maximize sports car sound and power in a couple hours of simple reversible installation time.    

Purchase Disclaimer: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.

Returns Policy

To RETURN any system, product or merchandise you must contact us first for a Return Authorization (RA) Number. Special order and custom made systems, apparel, Carbon Fiber Wall Art, and other certain merchandise are NOT returnable. ALL SALES ARE FINAL. To return a Fabspeed Motorsport product an RA number must be requested and if granted the item(S) must be in original Fabspeed Motorsport sealed packaging. A copy of the original invoice and a brief explanation must accompany all returned items. You must follow our instructions for returning items carefully, or Fabspeed Motorsport reserves the right to charge a 25% restocking fee on any OPENED box or repackaged products. Customers are responsible for return shipping charges. If an order was shipped with a promotional “Free Shipping”, and the order is returned, we exclusively reserve the right to charge the customer or distributor for the cost of that original shipping and handling. If a Fabspeed Motorsport Performance package is ordered, and an individual component of that package is returned, Fabspeed Motorsport reserves the right to charge back the performance package discount along with any additionally offered discounts. Return shipped items DAMAGED in transit will RESULT in additional charges up to and including rejection of the competent. It is the customer’s responsibility to ship safely and properly. No returns accepted after 30 days from the invoice date. No credits will be given after 30 days from the invoice date.

To qualify for return, the product must be unused and remain in the original packaging, as well as match the current design and packaging for the product at the time of return. Sounds is subjective and therefore does not qualify for a return of a used product. See Sound Solution Guarantee to see if your product is covered.

Periodically mistakes are made when ordering, or a wrong part is shipped, and you may wish to return an item. We will do everything reasonable to satisfy you. Please contact Fabspeed Motorsport immediately via email at to discuss the circumstances before returning any products. Anything returned without prior authorization from Fabspeed Motorsport will be refused. All returns must be sent back fully prepaid. Our customer service department ( will issue a Return Authorization Number, which must accompany any return. A copy of the original invoice and a brief explanation must accompany all returned items. No returns accepted after 30 days from the invoice date. No credits given after 30 days.


Fabspeed Motorsport cannot be held liable for refusal of, delay of, loss of, theft or damage to a shipment of any item. The customer agrees to indemnify Fabspeed Motorsport for all costs, fees and expenses Fabspeed Motorsport incurs as a result of any violation of any local, state, federal, national or international laws or regulations. Customer agrees to take responsibility for lost packages that were not independently insured or sent without requiring signature. The customer understands they will be liable in the event of additional fees, tariffs, or legal issues such as border seizure. Customer accepts these risks and agrees to release Fabspeed Motorsport of all liability.

Fabspeed Motorsport reserves the right to charge a shipping and handling fee on every order being shipped from our facility. This fee is universal and applies to all retail and wholesale purchases and cannot be waived or credited.

A 6% sales tax will be implemented for every purchase made by a Pennsylvania resident. This fee will be charged for in-house installations and products purchased online, over the phone, and/or via email, this fee is required by law, is non-negotiable and non-refundable.

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