When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
would the lack of back pressure cause bad gas mileage?
in theory yes. no back pressure would cause the motor to run poorly which increases the need for fuel to make power. how little back pressure are we talking about?
haha well i had no mufflers w/ cats and as of last night i now have no mufflers or cats. i get paid next fri so im looking to put some mufflers on after that