Cabin Air Filter Replacement


Two filters – part # 80292-T6N-A01 x 2


  • JIS #1 and #2 screwdriver; I bought mine on Amazon. (You can use Phillips screwdrivers in a pinch, but run the risk of stripping screw heads. Don’t say I didn’t warn you.) All Hondas, and apparently most/all Japanese cars, use JIS screws instead of Phillips, so it’s worthwhile investing in the proper tools.
  • 8mm socket and driver/ratchet
  • Hook pick (optional but recommended)
  • Headlamp (optional but recommended) or other light source.


  1. Remove passenger dashboard undercover by removing 3 clips with JIS #1 driver.

Turn the centre of the clip a quarter-turn until it pops up, then pull out clip. If the entire clip turns, hold the outer edge with your other hand to keep it from turning.

  1. Disconnect the 3 electrical connectors on the right side of the Telematics Control Unit (arrow). Using JIS#2 driver, unscrew 3 screws securing the unit and remove.

  1. Use 8mm socket to remove the 4 bolts securing bottom of glovebox.

  1. Open glovebox and unscrew the 3 screws along top edge using JIS#1 driver.

There are 4 clips on the back of the glovebox holding it in place. Pull the glovebox out to disengage those clips. You can’t pull it out all the way: Note the USB port and the 2 switches on the left hand side of the glovebox. You will deal with those next.

  1. There are 4 electrical connectors on the back, corresponding to the USB port and switches. Disconnect them. Note which connector goes where (take photo for reference).

There is also a harness holder on the back right hand side of the glovebox that you need to unclip. It slides off, but the top of the clip really grips the tab on the glovebox. I used a hook pick to lift the top part. It slid off easily after that.

  1. The glovebox should now slide out.
  2. The right filter cover is visible, but the left is blocked by the Climate Control Unit.

Disconnect the 3 electrical connectors (arrows). Using JIS#2, remove the 2 circled screws. Remove unit.

  1. You have FINALLY reached the filters! Remove the 2 covers by pressing the tab on the right side of the cover (arrow), then swinging it out to unhook the left side of the cover.

The two filters are exposed. Note the airflow direction on them (arrow should point down).

Remove and replace with new filters, making sure they are oriented properly. Those old filters were in the car for 3 years and 20k miles. They were definitely in need of replacement.

  1. Re-install everything in reverse order: Filter covers, CCU, glovebox connectors and harness clip, glovebox, TCU, dashboard undercover.

When re-attaching the undercover, note that there are two studs that go into the two holes at the back of the cover.

  1. Check that the rear trunk button and door handle pop out still work. Also ensure that USB port works.

Track Day experience & feedback

Every wonder what the car really does “on track”?  I  did?

Update this post with 2nd track event data

181001 NSXPO HPDE Track Test Days at Thunderhill

First Test Day

161231 Summary of Track Test Day at Thunderhill




We read how fast everyone is or how great the NSX performs on track, but yet there seems to be little empirical data to help those of us that would like to do this optimize the experience.

I wish we could generate a database.

I’ve found minimum information to optimize the NSX experience… to get the most out of the car. I raced in SCCA prototype classes for over 25 years. I’ve was fortunate to race at every major road course in the US that existed before 2005. I’ve track tested a couple thousand miles & raced 300+ events.  I know how to optimize on track performance. Three key things: It takes time, and money, and equipment.

I track tested the NSX one time, 12/31/2016. I had a great time. I had never drive a 600HP/4000lb street machine on track. It’s addictive. It also uses up equipment at a 10:1 or 20:1 ratio to driving around on the streets. I no longer have the tools or equipment  or resources (people & equipment) to go track testing in earnest… think I would like to but know I won’t.

Some lessons learned:

Brakes – CF brake pad monitoring & maintenance – Extremely important. (I would go through a set in a 2 day, 6-8 session track weekend – 150-200 miles.) Rear brake pad taper is a big problem. I think they are undersized, and lack sufficient cooling!  Wish I didn’t have CF for this function – not an option at time of my purchase.

Gas-Always start a session with more than a 1/2 tank of gas. I didn’t, and ran out – not a fun experience.

Tires – Stock Conti’s seemed to work quite well, in spite of what you read. Yes, I believe there is multiple seconds to be gained with other choices… probably ending up with a sticky set of Hoosiers on 19″ rims… The point is you can track your car and really enjoy the day, without the Oooie Goooie stickiest tires available.

Tire Pressures & wear – Measure your TP’s before your go out, and measure ASAP when you come off track. I picked up 11 PSI from cold to hot. I ran 41 PSI hot and the tires looked pretty good. Feel the cross section tire temp. (A tire pyrometer would be the best. An IR gun will give you a relative reading by surfaces cool rapidly.) Inspect your tire wear.  It will tell you a lot. (And the outside edge will see the most abuse.) My Conti’s held up very well on my 1 track day.

Trunk – Take every out, even the Styrofoam  container… It will melt.

Consumables – If you go for a weekend track testing in earnest, count on a $1200 set of CF pads, and a new set of tires, if you go really fast.  You don’t have to, & 9/10ths is still really fun! Who cares anyway. It isn’t set up in GT-3 Trim and you most likely don’t have a crew of 10 to take care of it all weekend…

Just go have fun.

And it would be really great to get a collection of “data points” so that  when we have a chance to “track” out NSX, we can start with the right settings for the best experience. We can learn from each other!

I’ve attached my “Track Day Summary”

Initial Track Day NOtes 12/31/2016

Summary of Track Test Day at Thunderhill Raceway Park December 31 – Copy