
07-20-2009, 03:39 PM
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Senior Club Cobra Member
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Join Date: Feb 2006
Location: Quincy,
CA
Cobra Make, Engine: Unique #9159 428 FE 614HP by FE Specialties
Posts: 257
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Not Ranked
When I had my engine rebuilt by FE Specialties in Sacramento, Tom changed the core muffler...from 2.5 to over 3" ...mine was loud and had good performance before but you could drop a baseball in the new pipe and it is a little louder...for a 428 with 614hp. Call him...he can give you some figures.
Tom
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