Side pipes

I was talking to someone about a 379 I saw with sidepipes that looked pretty good, but legality was questioned....anyone know about that?

 

Rule of thumb for inspections here in Maine (unless we can get Dieselbear to weigh in on this). Personal vehicle required that the exhaust tip on pickups was at least 1.5 feet from back of cab. Personally I would try to get it to the drives or the other side of myself.

 

only trucks I've really seen with side pipes are some show trucks. The only thing I liked about them were that they were different, other then that I think trucks looks better with vertical stacks

 

i've seen quite a few of these newer aero trucks with a single side pipe on the passenger side it pokes out right before the drive tire...




American Trucker

 

Not sure about the feds but many states require heat shields on all exposed pipes...

 

§393.83 Exhaust systems.
(a) Every motor vehicle having a device (other than as part of its cargo) capable of expelling harmful combustion fumes shall have a system to direct the discharge of such fumes. No part shall be located where its location would likely result in burning, charring, or damaging the electrical wiring, the fuel supply, or any combustible part of the motor vehicle.

(b) No exhaust system shall discharge to the atmosphere at a location immediately below the fuel tank or the fuel tank filler pipe.

(c) The exhaust system of a bus powered by a gasoline engine shall discharge to the atmosphere at or within 6 inches forward of the rearmost part of the bus.

(d) The exhaust system of a bus using fuels other than gasoline shall discharge to the atmosphere either:

(d)(1) At or within 15 inches forward of the rearmost part of the vehicle; or

(d)(2) To the rear of all doors or windows designed to be open, except windows designed to be opened solely as emergency exits.

(e) The exhaust system of every truck and truck tractor shall discharge to the atmosphere at a location to the rear of the cab or, if the exhaust projects above the cab, at a location near the rear of the cab.

(f) No part of the exhaust system shall be temporarily repaired with wrap or patches.

(g) No part of the exhaust system shall leak or discharge at a point forward of or directly below the driver/sleeper compartment. The exhaust outlet may discharge above the cab/sleeper roofline.

(h) The exhaust system must be securely fastened to the vehicle.

(h)(i) Exhaust systems may use hangers which permit required movement due to expansion and contraction caused by heat of the exhaust and relative motion between engine and chassis of a vehicle.

Here's the interpretations:

§393.83 Exhaust System

Question 1: Is a heat shield mandatory on a vertical exhaust stack?
Guidance: No. However, §393.83 requires the placement of the exhaust system in such a manner as to prevent the burning, charring, or damaging of the electrical wiring, the fuel supply, or any combustible part of the CMV.
Question 2: Does §393.83 specify the type of exhaust system, vertical or horizontal, to be used on trucks or truck tractors?
Guidance: No.

However, many State laws mandate heat shields, also where and how the exhaust must discharge. So the best advice is contact your local authorities where the vehicle is registered and inquire with them what your intentions are and see if the are legal. Hate to spend that much money, just to rip it off and fix.

 

I saw a set on a 379 a few years ago. The truck was very tricked out and, like Underpsi said, they looked interesting because they were different.

I think you might have some issues keeping your wheels clean also, lots of soot!

Bill