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2015+ S550 Mustangs
2015+ S550 Mustang Talk
15GT going sink 12/13 boss values?
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<blockquote data-quote="jes_csx" data-source="post: 13723593" data-attributes="member: 53263"><p>Heads are also revised and better flowing, plus 2mm more lift on exhaust side. I agree on the IM though.. definitely the bottleneck, but who knows how much. I'm surprised they didn't up the redline a few hundred RPM. I'm guessing its because it won't matter with the new IM. I think its going to be close to the boss as-is, but an IM swap should really make it shine and will probably be the hot mod and show bigger gains then exhaust changes.</p><p>Then again it may be putting down similar #'s as the boss at the wheels and making up for the drivetrain losses by making more at the crank. I'm really curious to see advertised vs rated #'s.</p></blockquote><p></p>
[QUOTE="jes_csx, post: 13723593, member: 53263"] Heads are also revised and better flowing, plus 2mm more lift on exhaust side. I agree on the IM though.. definitely the bottleneck, but who knows how much. I'm surprised they didn't up the redline a few hundred RPM. I'm guessing its because it won't matter with the new IM. I think its going to be close to the boss as-is, but an IM swap should really make it shine and will probably be the hot mod and show bigger gains then exhaust changes. Then again it may be putting down similar #'s as the boss at the wheels and making up for the drivetrain losses by making more at the crank. I'm really curious to see advertised vs rated #'s. [/QUOTE]
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15GT going sink 12/13 boss values?
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