What is this black box?

[gstjoker]

I guess I'll just leave it there for now but maybe one of these days when I'm really bored, I'll go buy some straight NAPA hose to replace it and see if there's any difference in the car.

[95talonracer]

I have a similar setup on my snowmobile, well it serves the same type of point anyways, and it holds air when crusing so when you hammer on it there is air in the box available to take instead of trying to take all of it through the intake. It is supposed to help with response a bit but didnt notice any difference on my car or snowmobile for that matter.

[92EvilTalon]

My Festiva had one too. I took that off and it did nothing to my car. But ya thats what it is for. Some place for air to go for later. When you get around to it go ahead and remove it. But ya the Chevy trucks have a huge one also....

[Bode]

I had one on my 95 GST, but I took it off when I put my front mount in.

[twack]

My buddy's grand cherokee had what looked like a big airbox but when we put a new intake on that we saw that it was just 90* pipe withan empty box for nothing but looks!

[sleepydsm]

If you ever look at the Spoon S2000, you'll notice they use the factory Honda airbox (yeah yeah, it has a carbon-kevlar intake scoop attached). It's a HUGE big blob of plastic, with a nice large diameter intake tube. The Spoon engineers found that the factory Honda piece was so well designed because it allowed a huge "air reserve" for throttle response, so they left it alone!

[Kracka]

^ The stock S2k intake is a very good setup, the one drawback it has is heat-soak in hot weather and heavy traffic which that Spoon snorkel eliminates. Aftermarket intakes do show slight gains, but mainly you're gaining throttle response which is exactly what my Comptech intake did. My intake pipe has a resonator of sorts in it which basically acts as a "air reserve" to help increase the throttle response. The K&N FIPK is setup very similar to the Comptech but it lacks the resonator box thing and the decrease in response is quite noticable.

BTW: You'd be looking at ~$400 for the Spoon snorkel/filter setup ;)