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Old 05-26-2013, 09:17 PM   #1
LOW
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glass pack vs resonator

ok so my 318ic (m42) is straight piped to muffler but is way too damn loud, what will quiet it down and not make it sound like a ricer, which will sound better? a glass pack or resonator?
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Old 05-27-2013, 09:11 AM   #2
BMe30
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18" resonator will be perfect
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Old 05-27-2013, 09:19 AM   #3
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a resonator will slightly quiet it down. the cat is what really blocks all the noise. I have dual 18" resonators on my car and its still pretty damn loud.
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Old 05-30-2013, 09:38 AM   #4
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Do you still have the stock catalytic on the car?

A good quality glasspack with large louvers inside will only restrict the flow a little but catch some of the raspy noise. 318's will still drone at lower RPM and on the highway. I've tried 4 different exhaust on my car including uninsulated resonators and mufflers that from my experience, sound very raspy and "throaty".

Try and fit the longest possible glasspack and muffler, even if you have to weld two 12" together or something along those lines. You wont lose any performance by giving the M42 a little back pressure and going with 2" pipe, high RMP power is all in the cam timing and chip tuning.

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Old 05-30-2013, 05:47 PM   #5
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Quote:
Originally Posted by Steve30 View Post
a resonator will slightly quiet it down. the cat is what really blocks all the noise. I have dual 18" resonators on my car and its still pretty damn loud.
Gorgeous noise, but yes it is loud. I have a Magnaflow 2.5" cat and straight through muffler with my S52 and its pretty quiet while driving "normally".
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Old 06-03-2013, 06:56 PM   #6
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yeah ok i have a resonator on order, if worse comes to worse i will grab another if its too loud. spent about $2000 today on parts for the project, everything from exterior/interior to exhaust and power train... oh and some suspension, hould keep me busy for a bit.
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