I have a 98 F150 Scab with the 4.6. I am looking for an exhaust that makes hardly any noise inside but maybe a slighty deeper tone outside. My main benefit im looking for is an increase in gas mileage. Any suggestions?

 

Hello rebus20,

I selected DynoMax Hemi Super Turbo mufflers for the same reasons. You can pick them up for around $50. each.

tak250

 

How much of an improvement did you see on your gas mileage? No noticeable sound increase?

 

I used 2 Dynomax Super Turbos on my 97 with the 4.6. They were mellow. Before that I used an Edelbrock RPM series muffler. It was quiet too.

 

Hello again rebus20,

My DynoMax Super Turbos' are not up and running as yet. I should have mentioned that I am also installing an H-Pipe (cross over). This tends to quiet things down also. I'll keep you updated.

tak250