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Timbo · 07-21-2016, 03:08 PM

Just installed the HPS post-MAF tubes and K&N drop ins. Butt dyno as expected; no detected bump. It does seems to ramp up quicker from 4K RPM up and throttle response seems a little sharper. Install was 40 mins even with messing with the passenger side PVC tube (seems the mold to pointed too far toward the firewall side), also needed to trim 1/4" off the airbox end of the driver side tube. I looked at the long tubes, but like the near-OEM look, didn't want to mess with nose removal for filter cleaning and didn't care about intake whoosh. All in all, 2 bills well spent. Goes well with Stillen cat-back I bought the car with. Next up, high flow cats.

07-21-2016, 03:08 PM	#1 (permalink)
Timbo Base Member Join Date: Jul 2016 Location: NH Posts: 16 Drives: 2012 370 Touring Rep Power: 9	HPS/K&N Installed Just installed the HPS post-MAF tubes and K&N drop ins. Butt dyno as expected; no detected bump. It does seems to ramp up quicker from 4K RPM up and throttle response seems a little sharper. Install was 40 mins even with messing with the passenger side PVC tube (seems the mold to pointed too far toward the firewall side), also needed to trim 1/4" off the airbox end of the driver side tube. I looked at the long tubes, but like the near-OEM look, didn't want to mess with nose removal for filter cleaning and didn't care about intake whoosh. All in all, 2 bills well spent. Goes well with Stillen cat-back I bought the car with. Next up, high flow cats.