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E90/E92/E93 · Power
E90/E92/E93 Intercooler
Your E90/E92/E93
Pick your year to see what fits.
This page covers the US sedan, coupe and convertible. It doesn't cover the 335d diesel or the E91 wagon.
+5–20 whp (est.)
Hard$350–$6003–4 hrs
Why do it
The factory intercooler heat-soaks fast. A bigger one keeps the air cool, so power stays consistent on repeated pulls.
Tools you'll need
- Jack and 2 jack stands
- Socket set
- Torx bits
- Trim tool
- Flathead screwdriver
Starting out? See our budget tool list.
Parts to buy
- VRSF 10903070 5" intercooler kit Keeps intake temps down on hard pulls. The same brand as our video.Fits 2007–2013 · 335i (N54), 335xi (N54), 335is, 335i (N55), 335i xDrive (N55)
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Before you start
- Give yourself a clean space, since the front bumper has to come off.
Steps
Remove the bumper
- Raise the front, remove the under panels and take off the bumper.
Remove the stock intercooler
- Disconnect the pipes and unbolt the stock intercooler.
Test-fit the new one
- Offer up the new intercooler and see what needs moving.
Change the piping
- Fit the new couplers and piping, and move the fan if needed.
Install it
- Bolt in the intercooler and tighten every clamp.
Reassemble
- Refit the bumper and the panels.
How to know it worked
- No boost leaks.
- Bumper lines up and doesn't rub.
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Safety first
- Park on flat ground, set the parking brake and chock the wheels.
- Never get under a car held up only by a jack. Use jack stands.
- Let the engine and exhaust cool first.
- Disconnect the battery before unplugging electrical parts.
- Wear safety glasses.
- If something doesn't match your car, stop and ask a shop.
Follow your part's instructions and your service manual's torque specs.