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Job of the Flex pipe on downpipes

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Old 10-17-2009, 05:37 PM
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Default Job of the Flex pipe on downpipes

new to F/I just curious what the flex pipe is for?
Old 10-17-2009, 05:40 PM
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Default Re: Job of the Flex pipe on downpipes

Well the name speaks for itself, but it allowes more movement of the exhaust which puts less stress on welds. Not only used for forced induction by the way.
Old 10-17-2009, 06:35 PM
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Default Re: Job of the Flex pipe on downpipes

so i can crack a weld by not having a flex pipe on?
Old 10-17-2009, 06:41 PM
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Default Re: Job of the Flex pipe on downpipes

yes or break bolts/nuts/studs... especially if you're on stock mounts... solid or even rigid aftermarket one's won't allow the engine to move as much.. but it's still good insurance...

stock exhaust on most honda's use the spring compressed bolts on the car to allow for engine movement... but if you're making decent power you probobly want a flexpipe in there for peace of mind.
Old 10-17-2009, 06:46 PM
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Default Re: Job of the Flex pipe on downpipes

Originally Posted by 092eg6
so i can crack a weld by not having a flex pipe on?

thats a 10-4
Old 10-17-2009, 10:50 PM
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Default Re: Job of the Flex pipe on downpipes

plus if your slammed or just semi-low and are running 3 inch or larger you will rub your downpipe or exhaust some, especially if you are on bumpy roads at a good speed, it happens all the time to me
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