Fabspeed OAP & Headers – For Porsche 4.0L Boxer Engine

Description

Fabspeed OAP & Headers – For Porsche 4.0L Boxer Engine

High-Performance Exhaust Components | Excellent Condition

Up for sale is a set of Fabspeed headers and over-axle pipes (OAP) designed for the Porsche 4.0L flat-six boxer engine. These components are known for their exceptional build quality, precision fitment, and noticeable performance gains.

Manufactured by Fabspeed Motorsport USA, this setup delivers improved exhaust flow, reduced backpressure, and a sharper, more aggressive exhaust note — all while maintaining perfect compatibility with factory mounting points and sensors.

Description:

Crafted from T304 stainless steel, both the headers and OAP feature mandrel-bent tubing, TIG welds, and CNC-machined flanges for a perfect, leak-free seal. This system enhances throttle response and mid-range torque while adding that signature Fabspeed sound that makes the 4.0L engine come alive.

These parts are in great shape, showing minimal use and no structural damage — ready to bolt on and drive.

Key Features:

• Brand: Fabspeed Motorsport USA

• Components: Headers + Over Axle Pipes (OAP)

• Material: High-grade T304 stainless steel

• Fitment: For Porsche 4.0L naturally aspirated boxer engines

• Condition: Excellent / lightly used

• Performance:

  • Improved exhaust flow and reduced restriction

  • Enhanced throttle response and exhaust tone

  • Dyno-proven power increase

• Installation: Direct bolt-on fitment with factory hardware and sensors

Compatibility:

• Porsche 911 GT3 / GT3 RS (4.0L)

• Model Years: 2018–2019 (991.2 generation)

• Also compatible with other 4.0L NA flat-six setups depending on configuration (confirm fitment before purchase)

Benefits:

• Authentic Fabspeed quality and craftsmanship

• Lightweight and corrosion-resistant

• Sharper sound, more power, and smoother delivery

• Perfect fitment — no tuning required

Overview:

These Fabspeed headers and OAP for the 4.0L boxer engine represent one of the best bolt-on exhaust upgrades for the modern GT3 or GT3 RS. Combining performance gains, aggressive tone, and premium construction, they’re ideal for anyone looking to elevate their Porsche’s sound and responsiveness — with components that look as good as they perform.