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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Exhaust and Cutouts Discussion [GEN 1]
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<blockquote data-quote="NC Raptor" data-source="post: 1007202" data-attributes="member: 12444"><p>Definitely do the 1-3/4 if you want to get the most out of it...</p><p></p><p>I looked into this when I wanted to get headers, (still may, but I decided to pursue fenders, 37s, bumpers, and a winch first) and even though lots of people have the 1-7/8, it seems like 1-3/4 is a better choice because it gives these 6k pound plus trucks the power down low where they really need it.</p><p></p><p>Look around, I remember seeing a similar post where JDM chimed in about this and said that 1-7/8 with a supercharger makes only a few more horsepower at peak RPM (you may even loose power NA), and the overall power band with the 1-3/4 is better (you don't tend to drive these trucks at peak RPM), even with a supercharger.</p><p></p><p>I believe they also said that their calculations indicated that 1-3/4 would be sufficient up until like 600 wheel horsepower (off the top of my head that's probably 775+ at the crank), which would most likely require a fully built motor in addition to the supercharger to achieve...</p><p></p><p>Also, if their is even a minuscule chance you may add a supercharger, your safest bet will be to get the Kooks; as the cats can break apart under the high stresses from the supercharger, and they use a different type of material in their cat that will break up and blow out the exhaust instead of possibly balling up and blocking the exhaust (I've only heard of this ever happening once or twice, but better safe than sorry)</p><p></p><p>Maybe look into the full Kooks setup while your at it...</p><p></p><p>It's expensive but the feedback on here seems to show that it's a really nice setup that gives a nice power boost and is pretty tame when cruising, but comes alive easily.</p></blockquote><p></p>
[QUOTE="NC Raptor, post: 1007202, member: 12444"] Definitely do the 1-3/4 if you want to get the most out of it... I looked into this when I wanted to get headers, (still may, but I decided to pursue fenders, 37s, bumpers, and a winch first) and even though lots of people have the 1-7/8, it seems like 1-3/4 is a better choice because it gives these 6k pound plus trucks the power down low where they really need it. Look around, I remember seeing a similar post where JDM chimed in about this and said that 1-7/8 with a supercharger makes only a few more horsepower at peak RPM (you may even loose power NA), and the overall power band with the 1-3/4 is better (you don't tend to drive these trucks at peak RPM), even with a supercharger. I believe they also said that their calculations indicated that 1-3/4 would be sufficient up until like 600 wheel horsepower (off the top of my head that's probably 775+ at the crank), which would most likely require a fully built motor in addition to the supercharger to achieve... Also, if their is even a minuscule chance you may add a supercharger, your safest bet will be to get the Kooks; as the cats can break apart under the high stresses from the supercharger, and they use a different type of material in their cat that will break up and blow out the exhaust instead of possibly balling up and blocking the exhaust (I've only heard of this ever happening once or twice, but better safe than sorry) Maybe look into the full Kooks setup while your at it... It's expensive but the feedback on here seems to show that it's a really nice setup that gives a nice power boost and is pretty tame when cruising, but comes alive easily. [/QUOTE]
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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Exhaust and Cutouts Discussion [GEN 1]
Another header question
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