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so, i pussed out, if you wanna call it that.
after 10k+ miles (of the 14k since I bought the truck), i decided to be a little nicer to the neighbors... okay, it was really more for when we're sleeping in the back seat on road trips... but i put the muffler back on in front of the stack. without metering, i'd subjectively guess it's about 6dB quieter (1/2 volume) than it was straight. the full exhaust brake whistle is still almost as loud as before, but it's toned down a bit, too.
as you can see, there's still enough room before the axle - i just had to turn it down instead of 45°ed out.
makes for a bit quieter cruising with the same deep rumble i liked about it before. approaching 2000rpm, it gets a bit louder.
the addition of an S475 tamed it down a little more, as expected.
now that the new tune also keeps the VGT open during warm-up unless i specifically keep the exhaust brake on, i think it's finally just about right.
10-24-2021, 01:58 PM
