Today I removed the lower airbox / intake resonator. I used RJO89's instructions from
HERE (Post #20 - Thanks mate!)
Here are my experiences:
First you have to jack up the car, then remove the plastic lining of the wheel arch, passenger side headlight & fog light (if fitted):
After taking out the 3 screws holding it in place, you can rip the whole thing right out (for what it actually does it's huge!)
My mate and I then routed a 3-inch flexipipe from under the wheel arch, right up to the pod filter:
The smaller pipe here is the one that you get in the K&N Kit. It comes from in front of the radiator:
Finished:
The result:
- Better fuel efficiency! It's dropped from 12.0L/100km to about 8.5L/100km (90% of my driving is done in peak hour)
- Very slight increase in power, especially lower down and at the very top end of the range.
My overall impressions:
After several months of running the K&N setup, I think it has two major downfalls - no heat-shielding & lack of proper cold air flow (especially with the single flexi-tube provided in the kit). It's only now, after running this second tube that I am happier with the performance.
I think you'd be better off following this approach
HERE