Tell me this isn't the most pointless mod ever...

[Rev_D21]

Really? Dual Air Filter Action?!?

Seriously this truck is killing me ...85PSi Fuel Pressure????

[SEV6]

That had to AT LEAST give him a solid 30 HP.

Sidenote: You arent making your D21 a lowrider are you?

[Rev_D21]

Nope, she'll be lowered a little for handling but not going for what everyone else is going for.

[bigred240sx]

that small filter is a breather filter... its not sucking air it relieves the crank case and doesnt run it back into intake its really for looks only no performance gain at all just less dirty air going into engine

[Rev_D21]

So why the extra air filter at the end of the air intake? I am not talking about the Autozone PCV filter. MAF?

[Desert Rat]

That would also cause a visual inspection failure in the emissions line here in AZ.

And I'm disappointed.

I thought I was the most pointless mod?

[Rev_D21]

You have been slipping?

[brainguyus]

At least it's a red one! The red ones add 10hp. The blue ones only add 7hp.

[95hb]

thank you big red 240sx is the only one that knows y people do that. its to keep **** from the cumbustion prosses out keepint the intake manifod clean

[rye1988]

and i don't think he is running two air filters he probably took the bowl filter out, but if you want to see some insane airflow just take the top of that bowl right off and put a k & n air filter in, if its like my 93' HB you will get even more flow than your cone lol and ya why the maf?

[white90esex]

yeah, if you look at alot of 240sx's you will see that filter. Heppens alot with aftermarket intake sytems and stuff.

I dont know why he has 2 Air filters though.... that sure does confuse me.