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SportTrac Discussion
Engine & Drivetrain
Exhaust Temp at Tailpipe
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<blockquote data-quote="Shawn White" data-source="post: 995000" data-attributes="member: 70197"><p>A few things I wish I would have done different with the dynomax were to place the muffler as close to the middle pipe hanger as possible. Mine was welded where the stock muffler started and then added a small section behind the dynomax. I also would have run the 2.5 inch pipe back from the muffler straight back, instead of using the stock pipe and dumping it to the side. That's the intersting thing about harmonics, small changes make or break the drone "lock on" frequency. If I had a welder and time I would have messed around with the placement a bit. </p><p></p><p></p><p></p><p>At 68 to 75 MPH the drone got old on a 4 hour rode trip.... But the dynomax had a great tone at idle and when you floored it. </p><p></p><p></p><p></p><p>The new set up isn't 100% stock, it has no resonator and has muffler that is oval like the dynomax, but its about 1.25 times longer. The new muffler is still a good bit smaller than the OEM. No drone and has a really minor amout of tone when you floor it. So far I didn't notice any change in fuel economy on a 45 mile drive.</p></blockquote><p></p>
[QUOTE="Shawn White, post: 995000, member: 70197"] A few things I wish I would have done different with the dynomax were to place the muffler as close to the middle pipe hanger as possible. Mine was welded where the stock muffler started and then added a small section behind the dynomax. I also would have run the 2.5 inch pipe back from the muffler straight back, instead of using the stock pipe and dumping it to the side. That's the intersting thing about harmonics, small changes make or break the drone "lock on" frequency. If I had a welder and time I would have messed around with the placement a bit. At 68 to 75 MPH the drone got old on a 4 hour rode trip.... But the dynomax had a great tone at idle and when you floored it. The new set up isn't 100% stock, it has no resonator and has muffler that is oval like the dynomax, but its about 1.25 times longer. The new muffler is still a good bit smaller than the OEM. No drone and has a really minor amout of tone when you floor it. So far I didn't notice any change in fuel economy on a 45 mile drive. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Exhaust Temp at Tailpipe
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