Wagner Competition Intercooler
The largest 335D intercooler currently available on the market!
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One of the best things I've done for my 335d! Fits perfectly with zero issues
Wagner Competition EVO III. 2009 335d JR 2.8 tune, stock air intake, stock turbos. The Wagner intercooler was well worth the wait. The materials and build quality are superb. It is a large intercooler with significant performance improvement over the stock intercooler. Aluminum charge pipe and silicone inlet/outlet hoses are larger diameter than stock. High quality hose clamps. If you register intercooler with Wagner online you get +2 years added to warranty (48 month total). I had a minor issue with fitment of OEM clip onto the Wagner aluminum turbo adapter but AAR staff promptly resolved the issue with me. The AAR tech I spoke with was very helpful. Installation was otherwise uneventful. For installation I cut the core support exactly as shown on the Wagner website. It’s a large section to cut out, but trust yourself it will fit like a glove. A piece of fiber board placed between core support I was cutting and radiator was helpful. The cutting will be only an inch or so away from radiator in places. The ambient temp sensor will need to be relocated (it is mounted to core support you’ll be removing). I relocated temp sensor to air ductwork intake on passenger side into a “V” slot I cut per suggestion from AAR tech. I used a long 1/4” drill bit to remove rivets from crossmember behind front bumper to allow removal. Engineering for fitment of this intercooler is excellent.