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This is an aluminum charge pipe kit for BMW B58 engines, replacing the factory plastic pipe that is known to crack under boost. It includes a 4-ply silicone coupler, T-bolt clamps, and a new O-ring and C-clip for a sealed, leak-free fit. It suits tuned or high-boost B58 owners and anyone who has already split a stock pipe. Against OEM plastic, the metal pipe trades a little weight and cost for durability; it is a supporting part, not a power adder on its own.
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Lowest price we've seen: $329.99 on Nov 13 at ApexBuilt. Tracked across 1 store since Nov 13.
B58 owners generally rate aluminum charge pipe kits as a sound preventive upgrade, with the metal pipe and silicone coupler holding boost where the stock plastic has failed. Complaints center on fitment on some chassis and on clamps that need careful tightening to stay leak-free.
The BN B58 Aluminum Charge Pipe Upgrade Kit replaces the BMW OEM plastic charge pipe on B58 engines. It is made from aluminum and is built to handle high boost without cracking.
The kit includes a 4ply silicone coupler and T-Bolt clamps for a secure, leak-free connection. A new O-ring and C-clip seal the joint to help hold boost. Three 1/8 NPT ports allow add-ons such as pressure sensors, methanol or nitrous.
It fits all B58 engines. Fitment comes in a 3-bolt (Gen 1) or 2-bolt (Gen 2) version. To confirm which you need, count the bolts that hold your charge pipe to the throttle body.
