Old 550 exhaust vs. sport LCI exhaust
04-25-2007, 06:17 AM
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My Ride: 07' 550i sport; Sapphire Black/Auburn; sport package; steptronic; navigation with R.T.T.I.; heads up; cold weather package; Logic-7; BMW MOST ipod kit; Motorola V3 snap-in adapter; rear heated seats and rear shades; anthracite headliner; sirrius sat. radio; M-aero kit; OEM style 166 Wheels with 245/35-19 front and 285/30-19 rear Michelin PS2s.
I drove a Carrera S with the sport exhaust last weekend and it dawned on me, wouldn't it have been easy for BMW to do essentially the same thing? The old exhaust was dual chamber with an electronic (or maybe vaccum) controlled valve that opened the second chamber at a predetermined rpm. Why couldn't we just have a switch to keep the valve open for when we want sport exhaust, and closed up to whatever rpm when we want civil quiet mode?
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04-25-2007, 02:40 PM
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My Ride: '05 545i - scheduled for ED pickup in Munich on 7/22!
well that'd cost a few extra $, and i'm sure bmw's bean-counters would've voted against it.
anyway, just go to your mechanic or exhaust shop and tell 'em to put an electronic switch in the cabin, connected to the butterfly valve (or a new solenoid if the current valve won't do) on the exhaust.
anyway, just go to your mechanic or exhaust shop and tell 'em to put an electronic switch in the cabin, connected to the butterfly valve (or a new solenoid if the current valve won't do) on the exhaust.
04-25-2007, 03:04 PM
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Originally Posted by jet190rs' post='417815' date='Apr 25 2007, 06:40 PM
well that'd cost a few extra $, and i'm sure bmw's bean-counters would've voted against it.
04-25-2007, 03:20 PM
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Originally Posted by jet190rs' post='417815' date='Apr 25 2007, 05:40 PM
well that'd cost a few extra $, and i'm sure bmw's bean-counters would've voted against it.
anyway, just go to your mechanic or exhaust shop and tell 'em to put an electronic switch in the cabin, connected to the butterfly valve (or a new solenoid if the current valve won't do) on the exhaust.
anyway, just go to your mechanic or exhaust shop and tell 'em to put an electronic switch in the cabin, connected to the butterfly valve (or a new solenoid if the current valve won't do) on the exhaust.
04-25-2007, 06:01 PM
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My Ride: 08 550i Titanium Silver, Black interior, sport package, steptronic
Heard the sport exhaust on a 550i sport this weekend at my local dealer The car sas at idle and then revved a bit when stationary. Could not drive the car as it was already sold. In my opinion the exhaust is pretty tame.
04-26-2007, 01:31 PM
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My Ride: '05 545i - scheduled for ED pickup in Munich on 7/22!
Originally Posted by DINAN530i' post='417829' date='Apr 25 2007, 07:20 PM
you make it sound so easy, is this mod that easy. Do only the 550i and LCi's have sport exhausts?
now the porsche sport exhaust is different. its a louder muffler and an electronic switch inside the cabin that controls a valve, so you can open and close it whenever you want, depending on if you want loud or quiet.
and to answer the first part of your question, yes, it is not hard to implement something similar to the porsche sport exhaust where you can control the loudness from the driver's seat. in fact, if you're really gung-ho, a good exhaust shop can fabricate you an "exhaust cut-out" - where you can bypass the muffler alltogher at the press of a button.
04-27-2007, 12:17 PM
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My Ride: 545i SE Oct 03 (53 plate) 19" Alpina Classic rims
Originally Posted by jet190rs' post='418310' date='Apr 26 2007, 10:31 PM
only the usa 550i sport has the sport exhaust, but we still haven't confirmed exactly what the new sport exhaust is. some have speculated that its simply the same old exhaust on pre-LCI v8 cars, but with the butterfly valve permanently open.
now the porsche sport exhaust is different. its a louder muffler and an electronic switch inside the cabin that controls a valve, so you can open and close it whenever you want, depending on if you want loud or quiet.
and to answer the first part of your question, yes, it is not hard to implement something similar to the porsche sport exhaust where you can control the loudness from the driver's seat. in fact, if you're really gung-ho, a good exhaust shop can fabricate you an "exhaust cut-out" - where you can bypass the muffler alltogher at the press of a button.
now the porsche sport exhaust is different. its a louder muffler and an electronic switch inside the cabin that controls a valve, so you can open and close it whenever you want, depending on if you want loud or quiet.
and to answer the first part of your question, yes, it is not hard to implement something similar to the porsche sport exhaust where you can control the loudness from the driver's seat. in fact, if you're really gung-ho, a good exhaust shop can fabricate you an "exhaust cut-out" - where you can bypass the muffler alltogher at the press of a button.
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