1st Gear Member
Join Date: Apr 2006
Location: Near New Brunswick, NJ
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Ebay CAI Review, Bought and Installed
I just recently bought a generic CAI from a eBay vendor "trackracing". I paid approximately $125 for it, shipped to my door.
The quality of the pipe was OK and the filter was a KNN filter. Unfortunately, the vendor included parts I did not need and did not include a part that I did need. The part not included was a vacuum plug, used to seal a hole in the pipe. I went to my local parts store, purchased a $2 rust proof bolt and fitted it through the hole via the provided rubber grommet.
After this, I preceded to install the CAI in parking lot of the parts store. It took a whole 10 minutes.
My immediate impression:
-a sound difference that is noticeable in 1st and 2nd gear at WOT, but thats about it
-little to none power increase
My impression, after driving 500 or so miles:
-sound difference much more noticeable, in all gears at WOT or close to WOT
-maybe 2-3hp gained, something definitely got better (my ego? maybe)
My priorities were to add a bit more bark for my 540i... and this product succeeded in doing so. I just wanted to add more sound and my only power related requirements was that this product should not make my car slower... (and I feel it did not from my "seat of my pants" meter).
If you want the most HP gain, this is not the product for you.
I will post some sound clips and pictures I get a chance...