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Lower spoiler / Diffuser / Valance

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DISPLAYING 1 to 6 (of 6 products)
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99750551108
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Rear bumper aero spoiler lip. Porsche 997 Turbo

porsche

Fits:
Porsche 997 Turbo 2007-09
Porsche 997 Turbo 2010-13

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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Related, superseded, cross reference or alternative numbers for comparison.

99750551108
99750551106
99750551101
99750551105
99750551108

The product you are viewing cross references to these numbers
997.2RSPLITNB
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Product Information

Porsche 997.2 Rear Bumper Splitters - OEM-Respecting Aero Enhancement for the Narrow Body Rear Bumper

Rear bumper splitters for the Porsche 997.2 narrow body cars are exterior aerodynamic accessories designed to boost the visual presence and performance character of your 997.2 911 while providing functional benefits beyond style.

Fits:

  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12

Not compatible with GT3, GT2, Speedster, Turbo or vehicles with aftermarket bumpers.

Manufactured to integrate seamlessly with the factory rear bumper lines, these splitters bolt on quickly with no drilling or modification required, making them a popular add-on for enthusiasts seeking a subtle yet impactful upgrade.

What Rear Bumper Splitters Do

Rear bumper splitters attach to the lower edge of the rear bumper and serve multiple roles:

  • Enhance the rear visual stance with a sportier, more aggressive look
  • Improve rear aerodynamic balance when fitted with complementary aero parts
  • Shield the rear bumper from road debris and kerb scuffs
  • Maintain the classic Porsche silhouette while modernising the rear appearance

Unlike full diffusers, these splitters focus on refining airflow and reinforcing the rear bumper’s visual strength, respecting the original design language of the 997.2 platform.

Why You Should Upgrade to Rear Splitters

Standard factory rear bumpers offer minimal aerodynamic shaping and protection at speed. Upgrading to rear bumper splitters is ideal if you want to:

  • Add a more aggressive and refined exterior look that flows with Porsche design
  • Protect vulnerable bumper edges from rock chips and minor impacts
  • Complement other exterior upgrades such as front lips, side skirts or rear spoilers
  • Improve perceived aerodynamic balance without a full racing diffuser setup
  • Increase resale appeal by showcasing thoughtful exterior enhancements

Unlike race-only parts, these splitters are engineered for road use while echoing motorsport inspiration — a perfect balance for both street and occasional performance driving.

Easy Installation and Quality Fitment

Rear bumper splitters for the 997.2 are designed to:

  • Bolt directly to the factory rear bumper
  • Respect OEM panel lines without cutting or trimming
  • Require minimal installation time (typically 10–15 minutes per side)
  • Work with narrow and wide body rear bumpers depending on your 997.2 variant

This makes them an accessible upgrade for DIY enthusiasts and professional workshops alike.

Key Benefits at a Glance

  • OEM-respecting bolt-on rear splitters for the 997.2 narrow body cars
  • Enhances visual strength and road presence
  • Adds protection to rear bumper edges
  • Quick installation with no drilling
  • Complements other exterior aero upgrades
  • Available for narrow and wide body configurations                                                                                                                                                           

997.2RSPLITWB
Product Information
Product Information

Porsche 997.2 Rear Bumper Splitters - OEM-Respecting Aero Enhancement for the Wide Body Rear Bumper

Rear bumper splitters for the Porsche 997.2 are exterior aerodynamic accessories designed to boost the visual presence and performance character of your 997.2 911 while providing functional benefits beyond style.

Fits:

  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12

Not compatible with GTS, GT3, GT2, Speedster, Turbo or vehicles with aftermarket bumpers.

Manufactured to integrate seamlessly with the factory rear bumper lines, these splitters bolt on quickly with no drilling or modification required, making them a popular add-on for enthusiasts seeking a subtle yet impactful upgrade.

What Rear Bumper Splitters Do

Rear bumper splitters attach to the lower edge of the rear bumper and serve multiple roles:

  • Enhance the rear visual stance with a sportier, more aggressive look
  • Improve rear aerodynamic balance when fitted with complementary aero parts
  • Shield the rear bumper from road debris and kerb scuffs
  • Maintain the classic Porsche silhouette while modernising the rear appearance

Unlike full diffusers, these splitters focus on refining airflow and reinforcing the rear bumper’s visual strength, respecting the original design language of the 997.2 platform.

Why You Should Upgrade to Rear Splitters

Standard factory rear bumpers offer minimal aerodynamic shaping and protection at speed. Upgrading to rear bumper splitters is ideal if you want to:

  • Add a more aggressive and refined exterior look that flows with Porsche design
  • Protect vulnerable bumper edges from rock chips and minor impacts
  • Complement other exterior upgrades such as front lips, side skirts or rear spoilers
  • Improve perceived aerodynamic balance without a full racing diffuser setup
  • Increase resale appeal by showcasing thoughtful exterior enhancements

Unlike race-only parts, these splitters are engineered for road use while echoing motorsport inspiration — a perfect balance for both street and occasional performance driving.

Easy Installation and Quality Fitment

Rear bumper splitters for the 997.2 are designed to:

  • Bolt directly to the factory rear bumper
  • Respect OEM panel lines without cutting or trimming
  • Require minimal installation time (typically 10–15 minutes per side)
  • Work with narrow and wide body rear bumpers depending on your 997.2 variant

This makes them an accessible upgrade for DIY enthusiasts and professional workshops alike.

Key Benefits at a Glance

  • OEM-respecting bolt-on rear splitters for the 997.2 wide body cars
  • Enhances visual strength and road presence
  • Adds protection to rear bumper edges
  • Quick installation with no drilling
  • Complements other exterior aero upgrades
  • Available for narrow and wide body configurations                                                                                                                                                           

Special Order item
99750583701
Product Information
Product Information
Rear bumper spoiler lip retaining strip.

porsche

Fits:
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Turbo 2010-13

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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

99750583701
99750583701

The product you are viewing cross references to these numbers
Special Order item
9975055110701C
Product Information
Product Information
Rear bumper spoiler lip.

porsche

Fits:
Porsche 997 Turbo 2007-09
Porsche 997 Turbo 2010-13

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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

9975055110701C
9975055110001C
9975055110401C
9975055110701C

The product you are viewing cross references to these numbers
P97150031
Product Information
Product Information
The BTR-II rear diffusor attaches to the stock 997 Turbo rear bumper. This is a two-piece diffusor that comprises of the wrap around add-on enlarging the lower left and right vents and includes the second piece, a removable center panel. The diffusor is made of high quality German fiberglass.

speedart

Fits:
Porsche 997 Turbo 2007>>

Material:
Made from Fibre Glass GRP

Product Type:
SpeedArt
DISPLAYING 1 to 6 (of 6 products)
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About Lower spoiler / Diffuser / Valance

Enhance both the performance and aesthetics of your Porsche with rear bumper lower spoilers, diffusers, and valances from Design911. These aerodynamic components are engineered to optimise airflow, increase stability, and refine your vehicle’s rear-end styling. Whether you’re upgrading for track performance or restoring factory bodywork, each part is crafted to OEM specifications for perfect fitment and durability. Choose from factory replacement panels, lightweight performance diffusers, or custom valances to achieve the look and function your Porsche deserves. From classic air-cooled models to the latest sports variants, Design911 provides precision-built aerodynamic parts trusted by Porsche owners worldwide.

Rear Diffusers
Aerodynamic Porsche diffusers designed to improve underbody airflow, reduce drag, and enhance rear-end downforce. Available in OEM and performance-grade materials.

Lower Rear Spoilers & Lips
Subtle yet effective spoilers that reduce turbulence and improve stability at high speeds. Designed for a seamless factory fit and refined Porsche styling.

Rear Valance Panels
Replacement and performance rear valances that complete the bumper assembly, adding structure and style while maintaining aerodynamic efficiency.

Classic Porsche Lower Trims
Authentic reproduction rear valances and diffusers for classic models such as the 911, 964, and 930 Turbo — ideal for concours restorations.

Carbon Fibre & Lightweight Aero Parts
High-performance lightweight carbon fibre or composite aero parts designed for motorsport applications and modern Porsche performance builds.

Mounting Brackets & Fitting Accessories
OEM-quality brackets, fasteners, and hardware for easy installation of Porsche diffusers and valance panels, ensuring secure fitment and factory alignment.

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