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02-02-2013, 02:05 PM | #1 |
Second Lieutenant
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Looking for emissions legal throaty sound
I've searched these forums and others and I've had a hard time finding a definitive answer. I came to the M3 from mustangs, which I've owned and driven for 20 years. I love the sound of an American V8 and want something like that from the M3.
I definitely don't like the raspy sound that I hear on Italian cars and it seems that a lot of the aftermarket systems mimic that. Emissions testing here is done annually so it looks like I'm limited to a slip on system. As far as going for a throaty, non-raspy sound I've watched a lot of videos but obviously it's difficult to appreciate what they sound like on my laptop. Gintani seems to be the closest. So am I really limited to a Gintani slip on or cat-back system? Are there full exhausts that are emissions legal? This car is a DD/garage queen but will see track time occasionally (maybe 1-2x per year). Thanks |
02-02-2013, 02:18 PM | #2 |
Mr. Nice Says Hello
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Drives: BMW M3 | X5 xdrive 35i MSport
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You are not limited to just slip on. Depending on how emissions works in TN you might be fine. As long as you run a tune or akra-r to remove the CEL light for no cats you will be fine.
In Chicago, there is no sniffer test, but they hook up to the OBDII port to check if you have any lights on. If it is the same you will be fine. Here is what I am running, the full Evolve E-Tronic Exhaust I love this exhaust because it allows you to have two different exhaust notes for the price of one. But there are plenty of exhaust you can purchase to make the sound change, for example the Eisenmann race which I know is really loud if that is what you are looking to do without having to remove your primary cats |
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02-02-2013, 03:01 PM | #3 | |
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Quote:
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Audi S6 * Audi S3 * Porsche Cayman GTS
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