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CSF Gen 2 B58 Race X Charge-Air-Cooler Manifold (Part# 8400)

If you are pushing your B58 engine with an upgraded turbo or a custom tune, the stock plastic charge cooler is basically a ticking time bomb. We see it all the time—the plastic tanks eventually crack under high boost, or the core just can't keep up with the heat, which kills your timing and costs you power. This CSF Gen 2 Race X Manifold (Part# 8400) is the fix. It’s a massive billet aluminum piece that’s built to handle whatever you want to throw at it.CSF didn't just make it look cool; they totally redesigned the airflow inside. It uses a much larger core than the factory setup, so your intake temps stay way lower, and the car doesn't feel "tired" after a few hard pulls. Plus, since it’s billet aluminum, it’s not going to split open like the cheap factory plastic unit ever will.

why this cooler is the real deal:

  • raw billet aluminum: this isn't just a basic upgrade. it’s CNC machined and built to be practically indestructible under high boost.
  • massive core: the core is way bigger than stock. it keeps your intake air temperatures (IATs) low so you don't lose power on a hot day or at the drag strip.
  • better airflow: the internal design helps air get into the cylinders more smoothly. it's all about keeping the pressure steady.
  • built-in port injection: it comes ready to go if you're planning on adding port injection later. it saves you a lot of headache down the road.

what it fits

this is for the B58 engine platform. it’s a direct replacement, but it’s a big unit.
  • fitment: fits a wide range of B58-powered BMWs.
  • note: this is the raw billet finish. it’s ready to bolt on, but it definitely looks like a racing part under your hood.

stuff people always ask:

is this hard to install?
it’s not a 10-minute job. you’re swapping out a manifold, so you’ve got to clear some space. if you’ve done work on a B58 before, you’ll be fine. if not, have a shop do it so you don't mess up any sensors or vacuum lines.
does it fix the heat soak issue?
100%. that’s the main reason guys buy this. the stock cooler heat soaks fast when you’re driving hard. this CSF unit holds way more coolant and has a better core design, so it stays cool way longer.
will it fit with my intake?
it’s designed to work with most aftermarket intakes, but because it’s a bigger unit than the plastic stock one, double-check your clearance if you have a really tight intake setup.
do i need a tune for this?
you don't need a tune just to run the cooler, but you're definitely gonna want one to take advantage of the better air density and cooler temps. this manifold is made for people who are already tuning their cars. 

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