![Spool Charge Pipe Upgrade Kit | [B58 Gen 1 & B58 Gen 2] Model:B58 Gen 1 M3 and M4 as well](https://cdn.shopify.com/s/files/1/0023/6109/8353/files/chargepipesforb58.png?v=1778875308)
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M3 and M4 as well as F9x X3M and X4M
The oil cap and coolant bleeder screw are full replacements
preventing slippage under the extreme forces generated by high-horsepower launches
Spool B46/B48 Downpipe
The inlets integrate directly with the Eventuri carbon intake system and maintain the smooth
Spool Charge Pipe Upgrade Kit | [B58 Gen 1 & B58 Gen 2] Model:B58 Gen 1 M3 and M4 as wellSpool Performance Charge Pipe Upgrade Kit For 20162024 F & G Series M140i, M240i, 340i, 440i, 540i, 740i, X3 & X4 BMWs with the B58 Engine Gen 1 & Gen 2 Give your B58 the performance and durability it deserves with the Spool Performance Charge Pipe Upgrade. Designed to improve throttle response and reduce turbo lag, this charge pipe is a must have for both stock and tuned engines. The stock charge pipe is known for cracking under pressure, and this
