Racing Exhaust System with "Big Bore" Heat Exchangers | Porsche 911 1963–83 | SSI

Ultimate racing exhaust set including original SSI “Big Bore” heat exchangers with 41 mm pipe diameter. Made from titanium-stabilized stainless steel (AISI 321) for superior power output and heat resistance.

• Fitment: Porsche 911 (1973-83) 2.7L/3.0L, 911 S (mechanical injection), 911 T/E/S (up to 1973)
• Advantage: Maximized exhaust flow for naturally aspirated engines and race car conversions
• Note: For 2.7L/3.0L models, additional oil lines and removal of the lower rear panel are required