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Old 09-21-2003, 03:29 PM   #1
kitbar
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Default For an aftermarket downpipe and cat back on do you need to reuse the stock donut?

The rubber donut that goes between the stock downpipe and catback.

I forgot to put it on my HKS downpipe and catback. Do I need it? I don't notice any leaks right now.

thanks!
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Old 09-21-2003, 03:40 PM   #2
mattjk
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No, don't need it for the HKS system.

There are only a few downpipes that use the stock donut, like the Stromung DP and cat eliminator combo, and the PDE downpipe.

Matt
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Old 09-21-2003, 04:57 PM   #3
GravelRash
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...and ProDrive DP and 3rd pipe.
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Old 09-21-2003, 08:02 PM   #4
nhluhr
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and the scoobysport
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Old 09-21-2003, 08:35 PM   #5
Sunrise City Rider
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If there is a flange for a donut gasket, then use it...The downpipes that replace both cats do not have that type of flange...

Zee
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