Install a Cone air filter on '90 Coupe 7A Engine.

Acer · #1 03-25-2008, 09:17 PM

<This Guide aint written by me, I take credit of Posting here, i dont know who posted it either :P>
Ok Here It Goes:-

Unbolt the MAF from the air box, bolt adapter to MAF (youll need new hardware.. $0.95), clamp filter on adapter.

Some things to remember:

The 7A air box is right next to your exhaust manifold, so you will need to fabricate some heat shielding. Without the shielding you will have a loss in power, and have the temps creeping up in traffic.

7A intake is loud when you get on the throttle. No more sneaky acceleration (all the cops around will hear you WOT).

With the MAF so close to the air filter, I wouldnt suggest using a K&N or any other oil based filters. The oils can collect on the MAF pin causing it to read incorrectly or even gunk it up enough to need a replacement. And paper based filters are about half the price if not cheaper.

"twin air filters" or "Y pipe intakes" are normally for engine compartments with the intake in the front behind the radiator and no room for a filter (chevy LS1, LT1, LS7). It would be pointless to run 2 filters on any other system outside of trying to make it look cool (which it wont).

You will show a drop in mileage if you're a spirited driver. Being light on the throttle saves the mileage but you will need to monitor your throttle usage

Have Fun,
Acer<--