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: Downpipe aketay 10-23-2003, 09:52 PM Eric, Banks is advertising a new 4" downpipe for about $150.00. My question is does the downpipe make that much of a difference? I am still running the stock system as my wife still hasn't gotten over what I did to the previous 6.0L in the old Chevy. Boy did that truck sound good!! Also, do you have any good info on a free flowing replacement muffler?(Quiet one.) dmaxalliTech 10-23-2003, 10:25 PM parts are cheap. labor to install it is another question...... I am sure it would help, that is a restrictive part of the system. But the labor to install it might be scary! Dont know of any aftermarket exhausts with out side effect of noise or drone at certain rpms' they all do it to a point Eric aketay 10-24-2003, 08:39 AM Thanks for the insight. | ||