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|3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.|
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Originally Posted by Starmavin
If you remove or gut your cat you'll get more of a Blahhh sound (think annoying punk honda). I just put a basic thrush turbo on (about $20) in place of the muffler and now it's got a decent growl. When I go turbo, I'm getting a high flow cat, I'd just as well have my car run cleaner anyway.
P.S. It is against federal law to gut or remove your cat. Junk yards can be fined up to $50,000 if they get caught selling a use one.
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