4in turbo back

powerstrokin87 · #1 (**permalink**) 01-12-2007, 03:04 PM

Has anyone out there with a 4in turbo back straight pipe noticed a power or fuel milage difference?

**pipelayerjdh** · #2 (**permalink**) 01-12-2007, 04:43 PM

There is definatly more power with 4" than stock. As far as straight pipes go, I like the way my truck runs with a muffler better than straight. It has more low-end power and spools up better. Any good 4" muffler will be better than the stock exhaust. Milage will probable go down because when you can here the truck, you want to push it harder. If you can resist, you should get considerable milage improvements.

**stump0331** · #3 (**permalink**) 01-12-2007, 05:07 PM

i didnt notie any thing when i deleted my muffler

**vitalidle** · #4 (**permalink**) 01-12-2007, 05:29 PM

Just installed mine today. It seems to have more low end response! I don't know about the mileage yet, but I will keep ya posted. I got a little better then 19 running 72 on the freeway stock, but I have made some changes since then, so its time to check the mileage again

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