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1995 993 C4 horsepower increase

Engine

Vehicle Information: Model: 993 C4; Year: 1995; Body Type: Coupe; Total Mileage: 68000;

Knowing that horsepower gains are exaggerated by suppliers I would like to know what you think is a realistic total for the performance chip, modified air box (motorsound cover) and fabspeed mufflers I have added?I made the same mods to my 964 and was very happy with them.Thanks

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