Author Topic: Is a sport cat legal?  (Read 896 times)

Offline rcrisp11

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Re: Is a sport cat legal?
« Reply #15 on: May 21, 2018, 06:22:27 PM »
Precat is for German emissions testing which has a cold start requirement.

So yes?! Haha

Offline Pudding

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Re: Is a sport cat legal?
« Reply #16 on: May 24, 2018, 12:41:17 PM »
Probably more for California emissions than Europe but a cat right next to the turbo, plus a second cat, is very common on most turbo cars.   First cat heats up way faster that way and the amount of fuel these engines burn, it needs 2 cats anyway to meet the very tough cal' emissions.

I noticed bugger all deleting the first cat.  It trims EGTs down a bit at the top end but in day-day driving there was nothing appreciable on the butt dyno.
Black Edition 30 with manually selected cogs, a beefier clutch, some extra boost and them Whiteline thingies, otherwise standard.

Offline rcrisp11

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Re: Is a sport cat legal?
« Reply #17 on: May 24, 2018, 08:55:57 PM »
Fair do’s. Thanks for the info :happy2: