Well i tackled one of the first mod's for my RX-7 today. I am more of a DIY person so you will see alot of homemade how-to's from me and this seems like a good place to start. I decided i wanted to add a cone filter to the car as the stock airbox takes up alot of room, the filter is reusable, and it lets the rotary growl out a little more...i possibly add HP too but its debatable since the stock MAF is the bottle neck in the system (Mazda had some crap MAF designs back in the day)
First off this is for Series5 RX-7's only as the S4 used a VAF design and requires only an adapter plate (found out autozone has them) and a 3"cone filter.
Parts needed:
2.5"-3" silicon connector
3" intake tube
3.5" Cone Filter
Breather filter (only needed if you are running an airpump)
Tools:
Flat head screw driver
Phillips screwdriver
10mm ratchet
Step 1:
Remove your stock airbox and Maf. I left the snorkle on the engine so it will feed some cooler air to the filter.
Step2:
Gather all the parts. All the parts used i was able to find at autozone and are made by spectre. Paid $17 for the coupler and tube and $26 for the filter (they have a $10 rebate going on until 3/31/09). The only modification i may make later is to shorten the chrome pipe about 1.5" so its not all the way up in the filter.
Step 3:
In order to have enough room with this configuration the filter will need to be tightened around the outside of the silicon coupler. Before installing the assembly back in the engine bay there is a silver bracket that needs to be removed and relocated. Its behind the headlight. In the last picture i circled where this used to bolt to and you can see where i relocated it to. Also in the pics if have a red rag on the air pump hose since the air pump will be coming out soon and i didnt have breather filter. But if you plan on keeping it i suggest adding a breather to it.
First off this is for Series5 RX-7's only as the S4 used a VAF design and requires only an adapter plate (found out autozone has them) and a 3"cone filter.
Parts needed:
2.5"-3" silicon connector
3" intake tube
3.5" Cone Filter
Breather filter (only needed if you are running an airpump)
Tools:
Flat head screw driver
Phillips screwdriver
10mm ratchet
Step 1:
Remove your stock airbox and Maf. I left the snorkle on the engine so it will feed some cooler air to the filter.
Step2:
Gather all the parts. All the parts used i was able to find at autozone and are made by spectre. Paid $17 for the coupler and tube and $26 for the filter (they have a $10 rebate going on until 3/31/09). The only modification i may make later is to shorten the chrome pipe about 1.5" so its not all the way up in the filter.
Step 3:
In order to have enough room with this configuration the filter will need to be tightened around the outside of the silicon coupler. Before installing the assembly back in the engine bay there is a silver bracket that needs to be removed and relocated. Its behind the headlight. In the last picture i circled where this used to bolt to and you can see where i relocated it to. Also in the pics if have a red rag on the air pump hose since the air pump will be coming out soon and i didnt have breather filter. But if you plan on keeping it i suggest adding a breather to it.
