Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Does Exhaust Noise Play a Role in Fuel Economy?

RobertSmalls · 07-12-2009, 10:08 PM

I've heard conflicting things over the years. If no ECU modifications are made, will a car get better FE with reduced exhaust backpressure? Is backpressure ever desirable?

07-12-2009, 10:08 PM	#14 (permalink)
RobertSmalls Left Lane Ecodriver Join Date: Aug 2008 Location: Buffalo, NY, USA Posts: 2,257 Prius C - '12 Toyota Prius C Thanks: 79 Thanked 287 Times in 200 Posts	I've heard conflicting things over the years. If no ECU modifications are made, will a car get better FE with reduced exhaust backpressure? Is backpressure ever desirable?