Porsche SSI Racing Exhaust Set - 911 41mm | 1965-1983 92-294SSI 914-423-227-02 The smallest hole or excessive

The smallest hole or excessive stretch in the diaphragm or membrane can cause rough idle

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Porsche SSI Racing Exhaust Set - 911 41mm | 1965-1983 92-294SSI 914-423-227-02 The smallest hole or excessivePorsche Racing exhaust set including "Big Bore" heat exchanger with 41 mm tubes. For 2. 7 3. 0 models also add oil tubes and remove lower rear panel For 911 T E S (1965 1973), 911 (1973 1983).