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06-29-2008, 01:05 AM
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Mufflers
My Jimmy needs a new muffler this summer.
A single Magnaflow may be nice. I noticed the pipe goes down from 3" to 2.5" or 2". I can't remember if the down size is infront or behind the catalyst converter. I may go 3" all the way out. What do you have on your 4.3 motors? Anyone have a suggestion? A new highflow muffler is my final step to pick a little more MPG. The Jimmy already has a nice throaty sound at idle and off idle. |
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