Welcome To GMG Racing


Shop our new arrivals:



Currency

Cart 0

Sorry, looks like we don't have enough of this product.

Pair with
Is this a gift?
Subtotal Free
View cart
Shipping, taxes, and discount codes are calculated at checkout

Your Cart is Empty


Slide image
Slide image
Slide image

GMG Sub-Strap Mounting Plate - Porsche GT Models

Regular price $295.00

Description

   GMG is proud to manufacture this Porsche 991/981 chassis 6-point harness submarine strap mounting plate. Our submarine strap mounting plate allows for the lowest and strongest possible mounting of the submarine straps available on the market for your 991 or 981 chassis. The multi-bar position option also allows you to mount the submarine straps at the proper 10-20° angle on Porsche OEM seats no matter the driver’s seating position.

   Using the newly designed Porsche Light Weight Bucket Seat option allows this to be a direct fit to your driver’s seat with no seat modifications. The Passenger LWB seat will need to be slightly modified to accept the submarine straps via a slit in the carbon underside of the seat (already marked by Porsche as OE) and a simple upholstery modification to the seat pad to allow the submarine straps to pass through.

   This installation should take approximately 2 hours per side and professional installation is highly recommended.

  Comes powder coated in wrinkle black with all necessary HD grade hardware and mounting solutions.

*Harness/Camlock not included*

Vehicle Fitment:
  • All 991, 981, 718 chassis

*Installation available at our Orange County facility or any one of our authorized installation partners worldwide. 

Details

Each piece in our collection is crafted with intention—balancing timeless design with modern responsibility. We use only high-quality, ethically sourced materials, working closely with skilled artisans who bring every detail to life with care and precision.

Our commitment to sustainability extends from recycled precious metals to responsible stone sourcing and mindful production practices. Whether it's a gift or a personal keepsake, your jewelry is made to last—and made to matter.


Need build help?

Get expert advice from our sales team! Chat now

GMG Sub-Strap Mounting Plate - Porsche GT Models

$295.00
Shipping & Returns

International Shipping

In-stock orders leave the shop within two to three business days. We try to keep everything on the shelf, but there are stretches where we're backordered, and when that happens a team member will contact you with an accurate ship date before you have to ask for one. Hawaii, Alaska, Puerto Rico and international destinations run higher than domestic, and because the rate depends on where you are, contact us for a proper quote before you order.

Order tracking

Tracking numbers go out automatically as soon as your order is packed. If 72 hours have passed without one, check your junk folder, which is where these emails tend to end up, and if it isn't there either, contact us and we'll find it.

Get in touch

If you have a question about your order, contact us and a person at the shop will answer it. Customer service runs Monday through Friday, 8am to 5pm PST.

Sourcing & Materials

Sourcing

We are particular about what things are made from, which is why we build with Docol R8 tubing rather than whatever the steel yard had that week, and why our merge collectors are now 3D printed instead of fabricated the way everyone else still does it, because the printed part does the job better and the old way was leaving something on the table. None of it is done to look clever. It's done because the material that survives a season at the track is rarely the material that was easiest to order, and we'd rather go find the unorthodox thing than sell you the convenient one.

made here

Every GMG part is produced in Southern California by our own engineers and fabricators, and the process runs the whole way through the building: the 3D scan of the car, the engineering and post-processing, the first prototype, and the beating that prototype takes at the hands of our professional drivers and the crew who support them before anyone is allowed to call it a product. Every name in that chain is one we know. The partners whose products we list are held to the same expectation, because putting our name next to something means we're accountable for it, and we'd rather do without a listing than explain one away.

why it's on the shelf

Our home track is a short walk from the shop door, which means every harness bar, exhaust and performance part we sell has been run in anger under real conditions on our own cars before it goes on yours, and the ones that didn't hold up never made it to this page. That is the entire value system, and it comes from a lot of hours in competitive racing, where a failed part is a wrecked car rather than a bad review. We don't sell vanity upgrades. If a part is listed here it changes something you can measure or feel, or it makes the car safer, and if it does neither we have no interest in taking your money for it.