MPG/exhaust

Bigaustin57 · #1 (**permalink**) 02-18-2011, 08:51 PM

I dont know if this has been covered or if there is even a difference but figured I would ask before buying. Is there any MPG or power improvement between a 4" or 5" exhaust? I'm planning to buy the H&S mini maxx and running the tunes that come on it. So what would be better for me?

**late_99_PSD** · #2 (**permalink**) 02-18-2011, 09:01 PM

I believe you won't see any milage differance, since they will both have the same downpipe. I'm goin with the 5" exhaust

laynlow transport · #3 (**permalink**) 02-19-2011, 05:46 AM

08 f350 6" lift 37" tires ...stock 8mpg ....5" no muffler cts s/b intake 15mpg hwy 12 to 13 city ......my buddy has the same truck but with 4" no muffler and he gets the same

laynlow transport · #4 (**permalink**) 02-19-2011, 05:47 AM

p.s the 5" sounds crazy on there i love it

Bigaustin57 · #5 (**permalink**) 02-19-2011, 09:41 PM

Ok, so the H&S mini max, 5" flo-pro, and S&B are on the way. Any tips or pointers on the install? All help is appreciated..

**late_99_PSD** · #6 (**permalink**) 02-19-2011, 09:47 PM

Rip and tear...oh.

Be careful not to break anything so if you have to put your stock setup back on for warrenty issues then you still can.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Remove Advertisements Sponsored Links
Powerstroke.org Advertisement