Spkspk67

Found it.


http://youtu.be/4DTX8H0KxTA

Its from another guy on here, he did a good write up on it.

Centexguy

I've seen it posted on this board from several members. And with the muffler being straight through from the factory and the resonator being straight through, there's just no where that I can see a cat back exhaust offering any benefit other than noise.

And is that 3mpg hand calculated or by the computer? I can lift two of my toes off the accelerator pedal and bump my mileage up according to the computer.

Now a new y-pipe I'm sure will help out with power.

93Cobra#2771

iTrader: (2)

Both by hand and computer. I got tired of comparing the two as they were within less than a tenth.

And this was a 120 mile trip that I regularly do.

Centexguy

Hmmm. Quite interesting.

mr_diggs

I'd like to see what the MPG difference is when the truck is tuned, both stock exhaust and modded. It *seems* that most hardware upgrades make the biggest improvement on a stock-tuned setup. I gained about 2-2.5 mpg avg going to my LMS 91 tune.....if I could squeeze a bit more with exhaust....I'd do it.