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hyperyaris · 07-28-2009, 01:23 AM

A more free flowing exhaust gives better power but less fuel effieicney, and vice versa. You could block up your exhaust lol.

07-28-2009, 01:23 AM	#2 (permalink)
hyperyaris EcoModding Apprentice Join Date: Jun 2009 Location: French Louisiana Posts: 123 Yaris - '07 Toyota Yaris Liftback Thanks: 0 Thanked 0 Times in 0 Posts	A more free flowing exhaust gives better power but less fuel effieicney, and vice versa. You could block up your exhaust lol.