Catalytic Converter Length

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04-17-2013, 02:50 PM

Midtenn

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Catalytic Converter Length

I am going to making my own cat for a 3" system and unfortunately I shipped out my old cat before measuring it.

Can anyone tell me what the length is of a 1.8L NA cat so I can make sure I have enough 3" pipe ordered? Thanks.

04-17-2013, 03:59 PM

Leafy

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How do you make your own cat?

04-18-2013, 12:46 AM

motormechanic

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The flanges are angled, but I'd say at the longest it is 17".

04-18-2013, 08:32 AM

Midtenn

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Thanks.

04-18-2013, 03:21 PM

curly

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I think he means test pipe.

04-18-2013, 05:27 PM

Midtenn

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Well it is a "cat" because we have visual inspections here (sniffer too, but I know I can pass that part with a little laptop time). Bought an "all-flow" cat from Silicon Intakes but it is only 13" long. I needed to know how much 3" pipe I needed to search for. Plan on modifying the downpipe and exhuast with v-band ends to make things easier down the road.