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Old 02-11-2012, 12:18 AM   #1
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New cats

I high flow cats make a difference?

---------- Post added at 12:18 AM ---------- Previous post was at 12:18 AM ----------

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I high flow cats make a difference?
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Old 02-11-2012, 12:44 AM   #2
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High flow cats will make a difference, they will relieve back pressure thus increase top end horsepower. Be careful because there are myths out there that you want NO back pressure and you actually need a little bit, if you have none you are going to lose low end torque. Stock cats in a 5.0 are 500-600 cell per inch and most aftermarket ones (like SLP) are 200 cell per inch so you are still "legal" but have a more free flowing exhaust. Pull off your stock mufflers and your gonna see a big difference. Those things are very restrictive and hold back that 5.0 sound we all know and love. Hope this helps.
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Old 02-11-2012, 12:48 AM   #3
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Originally Posted by SkoSter06
High flow cats will make a difference, they will relieve back pressure thus increase top end horsepower. Be careful because there are myths out there that you want NO back pressure and you actually need a little bit, if you have none you are going to lose low end torque. Stock cats in a 5.0 are 500-600 cell per inch and most aftermarket ones (like SLP) are 200 cell per inch so you are still "legal" but have a more free flowing exhaust. Pull off your stock mufflers and your gonna see a big difference. Those things are very restrictive and hold back that 5.0 sound we all know and love. Hope this helps.
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Old 02-11-2012, 01:04 AM   #4
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Thanks I have already change complete exhaust from actual cat back with x pipe and no resonators with no muffler. But thanks for the info, know where and how much they cost along with how much they cost to install?
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Old 02-11-2012, 04:11 PM   #5
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Quote:
Originally Posted by Redstang1
Thanks I have already change complete exhaust from actual cat back with x pipe and no resonators with no muffler. But thanks for the info, know where and how much they cost along with how much they cost to install?
Sorry man I'm not sure how much they cost to install, mine came in the kit through SLP I self install everything in my car so I know it's done right! Keep us posted
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Old 02-11-2012, 04:15 PM   #6
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Ok I'll start checking around
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