M52Cat

thanks Renesis ill probably just take the walls off and leave the screens for the sake of the MAF

LoudxB

Walls out, screen AFTER MAF removed, K&N filter + Reset. No problems at all with idle. Not much of a change in sound... maybe a bit more "sucking". Rev's are smoother and faster though. The butt dyno says it feels better but i can't tell on power. Do this mod! Its free .

henrijr

Did this mod yesterday. Real quick and its only about a 5 min job. Uhm... From what I can tell no to much different than stock but just probably a change in sound. Its free so just try it!

jea1989

while i didnt notice an increase in power or sound i did get an extra 10miles to the tank so nothing HUGE but still a free mod that couldnt hurt-- do it!

(removed both baffles and both screens, dropped in k&n filter)

henrijr

sorry forgot to add i didnt take out any screens, and after a day driving i notice no difference in sound... It was cool here yesterday night so it might of been the weather. lol...

Kafka

Bump for a GREAT mod! I even ask my dealer's rx8 technician to do it when i buy the k&n filter from them too LOL

Scarboro Mazda FTWFW!

delhi

can this be done without removing the box from the engine bay? It looks like a matter of unscrewing the screw to remove the two plastic walls.

longpath

iTrader: (1)

Yes, at least the removing the baffles part. I had trouble getting my airbox out so I just opened it wide enough to get the baffles unscrewed and out. In the interest of full disclosure, I did manage to cut up the back of my hand for my trouble, so I think it's a lot safer (for your hands) to take out the airbox and then do the modification. If I could have figured out what I was doing wrong that kept the airbox from coming free, I'd have going that route. I'd wanted to take out one of the screens; but with the meagre opening I was able to achieve there was no way I was risking the car ingesting a screw or other metal part.

alnielsen

iTrader: (4)

You just have to push the box back with a little more force. It will come up and allow you to remove the filter & the panels easier.

exsequor

iTrader: (1)

what's so hard with getting the air box out? I popped it out in like 2 seconds today literally. Just takes some man strength. Thanks for the mod though

shaunv74

The trick is to pull up the back of the airbox first to pull it out of the grommets underneath. Then push it back towards the throttle body.

Jpaul26

Okay so Renesis and Cheterick and everyone else I appreciate the thread, lots of help for a broke college student tryin to finally mod SOMETHING on his 8. But can I PLEASE see a video (decent quality) of the way this mod sounds under a load?

I saw one on YouTube but the guy even admitted to it being done with his cell phone, so it's obvious the deep horrid sound wasnt wat it really sounds like. Please and Thanks, guys.

cjkim

are you talking about the video of the dude taking out the bottom half of the intake box?
if so, this isn't the same "mod"

taking out the baffles/screens will have VERY little sound difference.

Jpaul26

Basically what I did was use a metal pipe or crobar... I mean leverage.... gotta love it..

Jpaul26

.... So I just dewalled my intake box and took it for a spin.... not really much difference. Im starting to think it is just in our heads.. I mean to me, my car sounds nice at high revs anyway, but tomorrow Im gonna try removing the VFAD I guess, cuz I just want it louder at take off... Any other suggestions?

cjkim

removing vfad will definitely make it louder under heavy throttle.

shaunv74

So...has anyone done a before and after on the actual airflow with this mod?

The Racingbeat airbox had an 8%-10% increase in airflow in the logging I did relative to stock.

warren(silver-roxy-8)

this is good stuff

NACer4lyf

iTrader: (1)

nice DIY it was quick and i did it in 5 min.

NACer4lyf

iTrader: (1)

exactly!

learycd

iTrader: (1)

when was noobing it look me forever to get the air box out, hint to those looking to do this, drive the car around for a little so the rubber grommets warm up.

04-Rx8

Did the mod today. I notice better sound and power at higher RPM's.

JKRX8

Well I removed the 2 panels, but then when it came to resetting the ecu...i have absolutely no clue how to do that i have no idea where the odometer reset button is or how to disconnect the negative battery cable...

shaunv74

So did anyone with a Cobb AP record before and after mass airflow readings to see if this does anything besides sound better?

9krpmrx8

iTrader: (46)

I was cleaning my K&N and decided to remove the walls. I have not noticed a difference in sound or power.