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04-03-2024, 11:46 AM | #1 |
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Catless downpipe
If I live in a state without emissions testing (TN), is there any downside to installing a catless downpipe? It looks fairly straight forward to do myself with a lift.
If I decide to sell down the road, is it best to put it back stock or leave it in? |
04-03-2024, 11:56 AM | #2 |
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I'm catless and live in a non-testing state. Other than the smell (ethanol eases the smell), no downsides. Plus side is more spooly boi noises . Adding it back on likely depends on whether you sell privately or trade into a dealer. A dealer will likely want the stock downpipe (exhaust is questionable).
Last edited by B58-M340iX; 04-03-2024 at 02:04 PM.. |
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04-03-2024, 11:59 AM | #4 |
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Down side is that you will have a gas smell in the cockpit. Get a catted downpipe.
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04-03-2024, 04:57 PM | #6 |
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Gain a lot of extra engine sound.
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04-03-2024, 05:42 PM | #7 |
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There's a massive gain in flow from the turbo through the exhaust by deleting the cat, its only common sense.... with a tune, more like 20-30 whp gain. If you're not going to run a flash tune, don't bother. Cold start delete is a must.
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04-03-2024, 05:47 PM | #8 |
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