Fabspeed Maxflo X-Pipe Exhaust for Porsche 911 with SSI-Style Headers

Replace the banana-style muffler on a classic 911 already fitted with matching SSI-style dual-inlet headers. The X-pipe system uses two-bolt inlet flanges and dual outlets, so header geometry and rear-valance clearance must be checked together. 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.

Technical Details

• Manufacturer product reference: FS.POR.911.SSIX.
• For matching SSI-style dual 2-bolt header flanges.
• T304 stainless construction.
• Investment-cast X-pipe merge.
• Dual-inlet/dual-outlet rear-exhaust arrangement.
• Described installation hardware included.
• Second right-side outlet may require valance clearance; specified turn-down arrangement is an alternative when suitable.
• Headers/heat exchangers are not included.
• Not a direct replacement for a single-inlet original exhaust.

Use restrictions

Retain any required emissions equipment for the complete vehicle configuration and confirm applicable sound requirements.

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.