2015 Silverado LS 5.3l exhaust upgrade

[2003Cobra]

Any recommendations for aftermarket exhaust for the 5.3l that has the best fuel economy? Also any other suggestions for easy upgrades to increase fuel economy?

Thanks, Sam

[newdude]

GM Borla or Corsa. Both are well worth the $$$. MPG gain? 0-whatever you notice if any.

[redwngr]

Drive smoothly, anticipate traffic and reduce speed. Pretend there is an egg between your foot and the skinny pedal.

 

Set the screen to fuel economy and work to try and beat you previous 'best' numbers.

 

Hate to say it, but as important as fuel economy rating is to the manufacturers, if it was as easy an exhaust mod, it would already have been done.

 

If fuel cost is an issue, the other way to save is to combine/plan trips to minimize the number of miles that are driven.

[topshelfproducts]

 

Swapped in a flowmaster and deleted the resonator for under $100 at a local exhaust shop, love the sound, my smartphone mic does it no justice but it sounds deep and no annoying inside cab drone.

[fondupot]

Here is my Corsa. No change in MPG.