01-06-2024, 11:40 AM | #1 |
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Catless downpipe power gains - what to expect
Guys, I would like to know what to expect in terms of HP and TQ gains with the addition of a good catless downpipe in the b48 engine (320i/330i/330e) that only have a k&N inbox air filter and jb4 filter (map2 or 3).
I would also like to know in which rpm range the gain comes. I think the car needs more power in the high rpm range. Will it help? |
01-06-2024, 01:10 PM | #2 |
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~ 20 whp
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01-08-2024, 05:44 AM | #4 | |
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Drives: BMW 330e 2021
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01-15-2024, 08:55 PM | #5 |
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20whp gains are definitely valid with the use of a piggy back or tune.
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