Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 2-3mpg with K&N air filter and aftermarket muffler?

Hersbird · 12-10-2021, 04:36 PM

Also know that if Cadillac could have achieved 2-3 mpg better EPA certification from a different muffler and air filter they would have done that in 2012.

12-10-2021, 04:36 PM	#8 (permalink)
Hersbird Master EcoModder Join Date: Feb 2014 Location: Missoula, MT Posts: 2,668 Dark Egg - '12 VW Touraeg Thanks: 305 Thanked 1,187 Times in 813 Posts	Also know that if Cadillac could have achieved 2-3 mpg better EPA certification from a different muffler and air filter they would have done that in 2012.