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BMW F30 340i B58 MaxFlow Downpipe | IRL
$299.99
Sale price
$299.99
Regular price
$399.99
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The IRL MaxFlow Downpipe for the BMW F30 B58 eliminates back pressure so your turbo spools faster and makes maximum power.
Why you need it
IRL lists a 30 hp increase on a tuned B58 with the stock turbo. The flex section reduces stress and unwanted vibration.
Fits
- BMW F30 with the B58 (340i)
Features
- Smooth bends for maximum airflow without drone
- Up to 30 hp on the stock turbo when tuned
- Flex section reduces stress and vibration
Good to know
Intended for off-road and competition use only, not for registered road use. A check engine light may occur. Professional installation is recommended.



