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SportTrac Discussion
Engine & Drivetrain
Exhaust Blown Out
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<blockquote data-quote="Mark k 4" data-source="post: 994176" data-attributes="member: 70347"><p>I would try and find a Borla. What size piping is the exhaust currently? It sounds fishy that you are burning out mufflers out at 5000 miles. You might be running too rich.</p><p></p><p></p><p></p><p>I asked about the piping size because I wonder if you have too much back pressure. I know that the popular belief is that 3" is needed for FI setups. I know I was running 2.5" on a 2.0 turbo and that was perfect. Since you are most likely running a 4.0 on 2.5" I would say you might want to look into running 3" with a nice Borla muffler since they are warrantied for a million miles.</p></blockquote><p></p>
[QUOTE="Mark k 4, post: 994176, member: 70347"] I would try and find a Borla. What size piping is the exhaust currently? It sounds fishy that you are burning out mufflers out at 5000 miles. You might be running too rich. I asked about the piping size because I wonder if you have too much back pressure. I know that the popular belief is that 3" is needed for FI setups. I know I was running 2.5" on a 2.0 turbo and that was perfect. Since you are most likely running a 4.0 on 2.5" I would say you might want to look into running 3" with a nice Borla muffler since they are warrantied for a million miles. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Exhaust Blown Out
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