Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 2
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 3
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 4
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 5
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 6
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 7
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 2
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 3
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 4
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 5
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 6
Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS, product view 7

Fabspeed Side Muffler Bypass Pipes for Porsche 997.2 GT3 / GT3 RS (2010–2011)

SKU: FS.POR.9972GT3.SMB

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Product details

These Fabspeed Side Muffler Bypass Pipes replace the side silencers on the 2010–2011 Porsche 997.2 GT3 and GT3 RS. A valved version retains a flow-control element, while the non-valved version uses an open bypass arrangement; the selected configuration determines the control requirements. Based in Fort Washington, Pennsylvania, Fabspeed Motorsport designs exhaust systems, air intakes and ECU tuning for sports cars including Porsche, with development informed by dyno testing and road and track evaluation.

Technical Details

  • Product family reference: FS.POR.9972GT3.SMBX
  • 14–16-gauge T304 stainless steel.
  • Valved or non-valved configurations.
  • Valved version uses Helical exhaust valves with pneumatic actuation.
  • Bolt-on side-muffler replacement.

Installation Resources

Videos

Fitment & Compatibility

Vehicle applications
Years Make Model / chassis Version / application Fitment notes
2010–2011 Porsche 911 (997.2) GT3 / GT3 RS Match side-exhaust and valve-control layout. Confirm pneumatic/control hardware for the valved option; retain emissions equipment and verify sound limits.

Check the 997.2 GT3 / GT3 RS side-exhaust and valve-control layout. Confirm the hardware and control connections required by the valved option. These parts replace mufflers rather than catalysts, but existing emissions equipment must remain intact. Verify track sound limits.

For help checking your Porsche configuration, contact PMB Performance with the VIN and installed equipment. Our team brings more than 20 years of Porsche parts experience.