Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 2
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 3
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 4
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 5
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 6
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 7
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 8
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 9
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 10
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 2
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 3
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 4
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 5
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 6
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 7
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 8
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 9
Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0, product view 10

Fabspeed GT4 RS-Style Exhaust Conversion for Porsche 718 4.0

SKU: FS.POR.718GT4.RSVLV

$6,595.95 Sale
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Product details

Install a matched GT4 RS-style valved rear exhaust on a supported 718 GT4, GTS 4.0 or Spyder. This conversion combines the required 4.0-to-RS over-axle pipes with the selected stainless or titanium rear system. Fabspeed Motorsport, based in Fort Washington, Pennsylvania, develops exhaust systems, air intakes and ECU tuning for sports cars including Porsche. Its development work uses dynamometer testing, road evaluation and racetrack testing.

Before you order

Confirm the selected tip configuration before ordering. The conversion description rejects original-tip reuse while some selections still offer it; those selections need a supplied-hardware check. EU/GPF cars also require an application check.

Technical Details

  • For the listed naturally aspirated 4.0-litre 718 models; not four-cylinder 718s.
  • Includes conversion over-axle pipes and selected rear valved system.
  • Stainless or titanium rear-system choice determines the supplied construction.
  • Helical valves retain compatible PSE control.
  • Choose the listed tip configuration. Confirm compatibility before selecting Re-use Oem Tips for the conversion; the conversion outlet interface must match.
  • Fabspeed reports 25 wheel hp and 19 lb-ft at 7,500 rpm on its development setup, not a guaranteed output for every car.
  • No cutting or welding specified.
  • EU-market/GPF configurations require application review.
  • Covered by the Fabspeed Lifetime Warranty, subject to its terms and exclusions.

Use restrictions

Retain required emissions equipment and confirm the exact vehicle market and installation requirements. Catalyst or filter changes require application-specific approval; no universal road legality or fault-light guarantee is implied.

PMB Performance brings over 20 years of parts and fitment experience. Send your VIN and photos or references for the component being replaced for help confirming the correct configuration.

Fitment & Compatibility

Use the application details below together with the original component and any existing modifications.

Vehicle applications
Years Make Model / chassis Version / application Fitment notes
2020+ Porsche 718 Cayman GT4 / Boxster Spyder Naturally aspirated 4.0; matching PSE layout Conversion package required; the RS rear exhaust alone is not equivalent.
2020+ Porsche 718 Cayman / Boxster GTS 4.0 Naturally aspirated 4.0 only Exclude earlier 2.5 GTS. Confirm manual/PDK, market and original filter/valve arrangement.