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Old 05-02-2016, 01:26 AM   #23
vectorit
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Join Date: Jun 2007
Location: Southern California
Posts: 7,617
Re: How much sound insulation?

Quote:
Originally Posted by Bigdav160 View Post
The magnaflows made a HUGE difference. I was so glad to get rid of the flowmasters
I tend to believe this.
I run twin FM series 70's, and they are nice at idle.
But at highway speed, they tend to drone.

I would like to replace them with a same size muffler from Magnaflow, but it seems all they make are much smaller mufflers even if they are quieter.
Trying to avoid making my exhaust system look like a patch work of welds.
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1968 K20 Suburban
1972 K10 LWB PU
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