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#1
06-10-2007, 05:09 AM
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straight pipe question
Should it be OK to straight pipe my Merc, and ship it to the states from Hawaii. Will they flip out over emissions and whatnot?
77 300d non turbo
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1977 300D 1986 BMW 528e 
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#2
06-10-2007, 05:35 AM
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the older diesels have no pollution devices in the exhaust. excepting a few years around 86 87.
none of the 123s did. so yours needs none for pollution. it will be a noisy bear though with nothing. the turbo motors are silenced to a good extent by the turbo. tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#3
06-10-2007, 09:38 AM
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I am on straight pipe, all I can say is that there has been a little gain in noise, it has turned more aggressive for sure, but the EGT also has gone down and the turbo response is way better.
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99 Gurkha with OM616 IDI turbo 2015 Gurkha with OM616 DI turbo 2014 Rexton W with OM612 VGT
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#4
06-10-2007, 12:09 PM
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A 77 is non-turbo so it's going to be EXTREMELY loud. The reason us turbo guys can get away with straight pipes is because the turbo works as a muffler through exhaust restriction and expansion.
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#5
06-10-2007, 12:18 PM
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Quote:
At idle it resonates a bit, and outside during heavy acceleration you'd think a single engine plane was flying by.  Inside its pretty much the same volume as with the exhaust system still on. On the freeway you can't tell, as the engine is loud anyways.
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-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#6
06-10-2007, 12:22 PM
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I'm still waiting for my exhaust to fall off so I can just put a 2.5" pipe out the side
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