I have this exact exhaust and picked up 1-2 mpg along with a K&N drop-in filter. Also depends on how you drive, lets just say I didnt gain any mileage until the novelty of the louder exhaust wore off.

 

does that exhaust create a nice tone?????not ricey?

 

I would like to know this too. How does it compare to the tone and noise level to the 40 serias?

Also is there any power gain with this? Does anyone have any pictures of this installed on their Blazer?

 

Ok everyone recomends Dynomax but no one can answer my questions?

 

as far as mpg goes my brother put some of the dynomax on his 4 door 4x4 late 90's blazer, its like a 98 or something but im not sure. anyways he said he got 1-2 miles but his wife got 4-5. both highway by the way. it really depends on how you drive is what he said.