Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Exhaust covering: Solid or Perforated metal?

NoD~ · 07-02-2016, 11:28 PM

Curious on this. Is it better to go with a solid meet metal (aluminum or steel)...

or keep it holey?

Seems holey would allow breathing in terms of heat and reduce a tiny amount of weight, but perhaps it would be bad for aerodynamics? Or would it?!

07-02-2016, 11:28 PM	#1 (permalink)
NoD~ Master EcoModder Join Date: Sep 2011 Location: USA Posts: 469 Frogger - '00 Honda Insight Gas Only (unHybrid) 90 day: 68.51 mpg (US) Thanks: 13 Thanked 247 Times in 133 Posts	Exhaust covering: Solid or Perforated metal? Curious on this. Is it better to go with a solid meet metal (aluminum or steel)... or keep it holey? Seems holey would allow breathing in terms of heat and reduce a tiny amount of weight, but perhaps it would be bad for aerodynamics? Or would it?!