Modified Stock Air Box

Would i install it after having the experience of driving it eh maybe not in hindsight.

Modified stock air box.

Recently bought a 2012 civic si coupe. Slightly better but still disappointing. We start by removing the stock air filter from the filter box. Last weekend i had some extra time so i blocked off the stock intake path that snakes from the top of the airbox around its back.

Alot of great info on here and wanted to see what you guys think. Remove the prefilter by simply sliding it off in one piece. Installing an air filter adapter and high flow air filter is the best alternative however if you have to keep the stock air filter box for whatever reason it is possible to modify this setup for better air flow. As already stated it took 5 minutes and weather stripping for me to seal my stock box to the front frame rail.

Here is a link which includes dyno results on a sc d tundra. Earl s rear seat storage dex s stock air box mod tundrageeks. Before the 4in intake made 918hp. Modified stock air box.

It would not be crazy difficult to weather strip the cut bottom boxes that are popular now. While i was doing my high and low boost maps i figured i would compare a stock airbox vs a 4in intake. I have modified my stock airbox by cutting out the bottom of it saving only the 3 fastening points to the bottom tray i stopped the cut right before the bottom of the filter i used a small cut off wheel and saw i also saved the fender ports too it works great and now i just installed a r air hood so now i m gonna cut the top out and install a second air filter for the hood air so cold air. On a sc d tundra it s probably a 8 1 increase.

Do i regret installing it no. Added a k n drop in too. Let s me note this here the stock air box was 895hp. Modified stock air box i mean maybe drilled some extra strategicly placed holes possibly on the side facing the front of the car where some extra cool air could be pulled in.

Any forward progress puts outside air into the box stock or modded. Discussion in bolt ons and all motor started by turkeyfeast123 sep 8 2016. I havnt had a chance to pull mine yet and look to see. I ve seen other forums where people have swiss cheesed the box with 1 holes.

I had started off by removing the air resonator hoping for some good growl woooosh sounds. Page 1 of 2 1 2 next turkeyfeast123 well known member. I m happy enough with the results. 2016 to 2017 stage 1 fbo ported msd 103 tb e85 2018 stage 2 p1c 4 0 pulley pray ported heads pray stage 1 blower cam txspeed valvetrain katech ported 87mm tb ported msd 1 and 7 8 headers.

Wanted to know see if anyone has modified their stock airbox to bring in more air along with a high flow drop in filter.