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will new exhaust help my v10 for more mileage
I have a 99 f250 crew cab with a V10, I am thinking about getting an exhaust system on it. The guy at the muffler shop said that the factory system is to restrictive and that his system will be bigger and will let the engine breath better and give it better fuel mileage and more power. Has anyone had an aftermarket exhaust system put and on and had better mileage? thanks
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