Fabspeed Titanium Rennsport Muffler for Porsche 997 / 991 GT3

Replace the matching GT3/GT3 RS center muffler with a titanium Rennsport unit retaining compatible original valve operation. The internal chamber arrangement supports a restrained closed-valve path and a more pronounced open-valve exhaust note. Based in Fort Washington, Pennsylvania, Fabspeed Motorsport designs exhaust, intake and ECU-tuning products for Porsche and other sports cars. Development includes evaluation on a dynamometer, on the road and at the racetrack.

Technical Details

• Titanium center muffler with cast X-pipe.
• 70 mm valve-open tubing.
• Retains compatible factory exhaust-valve/PSE operation.
• Select the supplied tip configuration.
• Reuse the specified original gaskets, straps and hardware if serviceable.
• If needed: two band straps 99711111970, two strap bolts 90006736201 and the required gaskets 99711156390 / 99711156190.
• Side-muffler bypass pipes are separate.
• Confirm original center-muffler joints and mounting arrangement.

Use restrictions

Retain required upstream catalysts and filters and confirm applicable sound requirements. Match the exact market and original exhaust connections.

Product Videos

Demonstration cars may have additional modifications. The selected configuration determines what is supplied; a video does not establish another vehicle’s fitment or guarantee identical sound or output.

With over 20 years of parts experience, PMB Performance can help check the application. Share your VIN and photos or references for the component being replaced before ordering if the match is uncertain.

Fitment & Compatibility

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