I have a 2004 Ford crown victoria dual exhaust with no mufflers?

Shaun

New member
I get better gas mileage 298 per tank (16 gal) as posed to 237 per tank.

But what am mostly concerned about is the engine life, is it better for the car to be free flowing instead of going through a muffler all 4 cats are still intact and to me the car is running better then ever.
thank you in advance for answers.
 
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