SHW Performance Front Brake Discs 380x34mm – Porsche 991 GT3/RS
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Description
SHW Performance Front Brake Discs 380x34mm – Porsche 991 GT3/RS is a direct-replacement front brake disc for the listed Porsche GT applications. It is intended for vehicles using the stated steel brakes system and retains the original mounting arrangement, caliper position and brake balance.
Brake discs on Porsche GT models are highly application-specific. Diameter alone is not enough to confirm compatibility: disc thickness, offset, bell depth, handed orientation, brake option and production date must also match.
Availability and lead time
- Left · 99135140582SHW: Orderable – 40–80 days
- Right · 99135140682SHW: Orderable – 40–80 days
Supplier availability estimate, not a guaranteed delivery date. Contact us to confirm delivery timing.
Key specifications
- Disc diameter: 380 mm
- Disc thickness: 34 mm
- Construction: Internally vented two-piece performance brake disc
- Position: Front
Vehicle fitment
- Porsche 911 (991.1) GT3 – front axle
- Porsche 911 (991.1) GT3 RS – front axle
- Cars fitted with the original 380 x 34 mm steel front brake system
What is supplied
One brake disc; select left or right. Brake disc rotors are priced individually. Where the product is handed, select the correct left- or right-hand part number. A complete axle replacement normally requires one left disc and one right disc.
About SHW Performance
SHW is a major brake-disc manufacturer with extensive original-equipment experience. Its replacement range is developed around the principle of supplying a genuine factory-equivalent component rather than a loosely adapted universal rotor.
This application uses a two-piece performance construction, allowing the friction ring and centre section to manage thermal expansion more effectively than a conventional one-piece disc.
Across its wider range, SHW manufactures both ventilated monoblock rotors and patented two-piece pin-drive systems. Where the vehicle specification calls for a floating two-piece rotor, the friction ring is connected to an aluminium bell through stainless-steel pins. This arrangement can reduce rotating and unsprung mass, allow the friction ring to expand more freely under temperature and improve cooling airflow through the internal vanes.
SHW places particular emphasis on repeatable braking performance, thermal stability, durability and noise control. Curved internal vane designs are used where specified to balance structural strength with efficient heat evacuation. The result is a direct-replacement product designed for consistent performance under repeated braking loads.
Installation and compatibility notes
- Confirm compatibility by VIN, original Porsche part number or the number on the component removed from the vehicle.
- Check whether the car is fitted with conventional steel brakes or Porsche Ceramic Composite Brakes.
- Inspect the caliper, pad retaining hardware, brake hoses and wear sensors while the brake system is dismantled.
- Brake discs must be installed onto clean, corrosion-free hub faces and checked for runout before the vehicle is returned to service.
- New pads and discs require the correct bedding procedure. Avoid prolonged stationary brake application immediately after heavy braking.
- Professional installation is strongly recommended on all GT and RS braking systems.
Related and cross-reference numbers
- 99135140581
- 99135140681
- 99135140582
- 99135140682
Reference numbers are provided for comparison. Porsche may supersede part numbers, so the current number should be checked against the vehicle before ordering.
More information
Get Booked in for fitting here
Warranty, Shipping and Returns
Products are supplied with the applicable manufacturer warranty. We offer UK and worldwide shipping. Please refer to the live availability information and our shipping and returns policies before ordering. Contact us if you need to confirm compatibility, intended use or any product-specific conditions.
Finance Options
Available payment options and current terms are shown at checkout. Instalment options depend on the provider and eligibility. Please review the terms displayed before confirming your payment.
Why buy from us?
Why buy from us?
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Specifications
- Brand
- SHW Performance
- Product type
- Brake Discs
- SKU:
- 99135140582SHW
- Side
- Left
You’ll earn 949 Laps
For 1 item, including VAT but excluding delivery.
How it works
Sign in before ordering. Earn 1 Lap for every whole £1 of eligible product spend, including VAT.
Delivery, gift cards, sale-priced or discounted items and trade purchases do not earn Laps.
Purchase Laps become available 30 days after payment. Returns and refunds remove Laps earned on refunded items; pending Laps are cancelled.
This estimate follows your selected option and quantity. Checkout discounts can change eligibility. Bundle prices count once. Appstle records the final award after payment.
Sign in, open Spend Laps and choose an available reward. Redeem your Laps, copy your unique discount code and enter it at checkout using the same customer account.
Your tier makes your Laps go further: 1,000 Laps are worth £10 at Rookie, £12.50 at Contender, £20 at Pro or £25 at Champion. Choose £5 off £100, £10 off £200, £25 off £500 or £50 off £1,000 of eligible products.
Minimum spends include VAT and exclude delivery and ineligible products. Use one reward or discount code per order; it cannot be combined with any other product, order or shipping discount. Rewards apply only to eligible products and variants shown in your rewards profile. Returns and refunds remove the Laps earned on refunded items; pending Laps are cancelled. Spending Laps does not reduce your qualifying lifetime spend. Laps and standard reward codes do not expire.
Need help?
Product questions answered
Helpful answers before you order. Need more detail? Our team can help.
Which brake specification do I need?
Confirm the axle, fitted caliper and disc dimensions against the listing. Different factory brake packages can be fitted to the same model. If you are unsure, send us your vehicle details and photographs of the current brakes before ordering.
How do I choose between road and track options?
Tell us whether the car is used on the road, for occasional track days or for competition. Check the stated compound or product specification, and any usage restrictions in the listing. We can help you compare the available options for your intended use.
When will my order arrive?
Select your required option and check the live availability message above. Dispatch is when your order leaves us; delivery takes additional time and depends on the service and destination. If no verified lead time is shown, or you need the item for a fitting appointment or event, contact Nineteen72 Performance before ordering.
What is included in the price?
Check the product description, selected option and stated quantity before ordering. Images may show optional equipment or an example installation. If you need a matching pair, a complete kit or additional hardware, ask us to confirm exactly what is included.
How do I get help before ordering?
Contact Nineteen72 Performance with a link to this product and your question. For vehicle-specific parts, include your model, year, engine and any modifications that may affect compatibility.
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