Straight pipe experiment

[Mark Rinker]

Decided to cut out the old 'Electrolux' muffler from the 2001 LB7 and replace it with a chunk of 3.5" straight pipe.

Sound at idle and cruise is barely louder than stock. Under full acceleration, there is a nice throaty exhaust note, but nothing that draws attention to the truck.

Wondering if I'll see any mileage gain...the 'experiment' will begin next week!

[Kennedy]

My prediction: It will be neat for a while and then you'll get sick of it and would never even consider doing it again...

[ronniejoe]

A friend of mine has been running his 01 that way since it was new.

[Mark Rinker]

Admittedly, I haven't heard the drone with a trailer in tow. I have a feeling it might get tiresome under those conditions.

As stated, an experiment...a 4" complete system will likely follow.