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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

Turbo Chargers

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DISPLAYING 1 to 3 (of 3 products)
MD516MD517
Product Information
Product Information
Porsche 911 (997) GT2 Twin Turbos - Stage 1 - MD516 & MD517 [650-675 bhp]

MD516 & MD517 Stage 1 Twin Hybrid Turbos feature:
• Specially modified high flow BorgWarner K24 Compressor Wheels featuring the latest extended tip techology
• Compressor cover profile re-profiled to suit larger compressor wheels
• Turbochargers fully blueprinted to motorsport standards
Estimated Power Output: 650-675bhp*

MD516 & MD517 Twin Hybrid Turbochargers fit:

Porsche 911 GT2 (997) 3.6 litre 523 bhp, engine code 997 Top, year 2007 onwards, OEM number 99712307776
MD516 & MD517 turbos are a direct replacement for 5304-970-0080 & 5304-970-0081.

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

MD516MD517
99712307776
5304-970-0080
5304-970-0081

The product you are viewing cross references to these numbers
TTE10059
Product Information
Product Information
tte

TTE720 VTG upgrade turbocharger for 997.1 TURBO / GT2

Product Highlights:

• BWTS VTG turbocharger as base part
• Very early response
• Billet Milled TTE compressor 6+6 BLADE
• BWTS High Flow Clipped Turbine
• Plug and Play installation
• 700 PS Capable
• Proven TheTurboEngineers quality
• Single parts finely balanced then components assembled and core high-speed VSR balanced
• Supplied with a balance test result document
• Made in Germany
TTE10060
Product Information
Product Information
tte

TTE800 VTG upgrade turbocharger for Porsche 997.1 Turbo / GT2

• Original BWTS VTG turbocharger as base part
• Very early response
• TTE Billet Milled compressor wheel
• BWTS Clipped blade Turbine
• 800 PS Capable
• Plug and Play installation (with larger turbo intakes)
• Proven TheTurboEngineers quality
• Single parts finely balanced then components assembled and core high-speed VSR balanced
• Supplied with a balance test result document
• Made in Germany
DISPLAYING 1 to 3 (of 3 products)
About Turbo Chargers

Porsche Turbo Chargers

At Design911, we supply a wide range of turbo chargers for Porsche models, helping you maintain, restore and upgrade engine performance for both road and track use.

Why do Porsche Turbo Chargers matter?

Turbochargers are central to how a Porsche turbo engine delivers power, torque and overall responsiveness. Operating under extreme heat and pressure, they depend on precise clearances, good lubrication and correct installation. As they age, internal wear, oil leaks or damage can reduce boost, spoil drivability and, if ignored, risk further engine issues. Keeping the turbo system in good order is key to preserving performance and reliability.

  • Keep your Porsche delivering the performance it was designed for
  • Help protect the engine by addressing worn or failing turbo components
  • Reduce issues such as smoke, noise, or inconsistent boost delivery
  • Support long-term enjoyment, pride of ownership and potential resale value

Common options & kits

Individual replacement parts 

Specific items to address a particular area or issue without changing everything at once.

  • Ideal for targeted repairs
  • Lets you replace only what is needed
  • Helps keep initial costs under control

Matched sets or pairs 

Components supplied together so both banks or related items are renewed at the same time.

  • Consistent feel and performance
  • Helps avoid uneven wear or behaviour
  • A sensible choice for routine maintenance

Complete kits 

Grouped parts designed to refresh the whole turbo system or support a specific upgrade in one go.

  • Everything specified in a single package
  • Saves time compared with sourcing parts individually
  • Ideal when upgrading or restoring your Porsche

Brands & quality options

At Design911, we stock genuine Porsche parts where available, plus OEM-equivalent and carefully selected aftermarket brands. This lets you choose between keeping things original, adding subtle upgrades or managing budgets on everyday maintenance.

Agency Power Agency Power develops functional, race-inspired products, including turbo-related components for tuned Porsche models. Their parts are designed with motorsport use in mind and undergo testing and quality checks before production.

BorgWarner

DesignTek

Forge 

Forge Motorsport designs and manufactures high-quality performance components, including Porsche turbo hardware. Their focus is on robust engineering and consistent performance for fast-road and track-driven cars.

Koblenz

When should you review or replace your Porsche turbo chargers?

Checking turbochargers regularly helps you spot wear, damage or age-related deterioration before it affects performance or leads to more expensive repairs later on.

  • Existing turbos are worn, noisy, smoking, or no longer making target boost
  • You notice reduced power, slower spool, hesitation or an untidy, oily appearance around the turbo area
  • You are upgrading other engine components and need turbos that can safely support higher boost and airflow
  • You are rebuilding or restoring a Porsche engine and want fresh or refurbished turbochargers for long-term peace of mind

If any of these apply, it is a good time to review your turbo chargers and replace anything that is past its best, so your Porsche stays dependable and enjoyable to drive.

Explore Porsche turbo chargers with Design911

Browse turbo chargers for Porsche at Design911 — from individual components to complete upgrade kits — and find options to suit everyday maintenance, performance tuning and full engine restorations.

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