What is the difference between an s5 and s4 intake. I know the sensor is all weird but what is the main reason that most companys don't make a intake kit for it?


(I searched and sisn't find it)

 

Do you mean the airflow meter? The S4 AFM is made of aluminium and uses a swinging flap to measure airflow, and the S5's is plastic and uses a sliding cone. There's nothing weird about it, it's a fairly common design. They both work in basically the same manner and do the same thing.

There are plenty of pod filters that will fit the S5 AFM. Anything with a 2.5" neck ID will fit right on. No "kit" is required.

 

Thats what I thought , but why then do they make an Apex'i filter for the s5 and not the s4 ?

 

ever try to put a squar block into a round hole

 

the s5 filter will work on the s4, u just need the 3 dollar adaptor plate off ebay.

 

s4s need a square to round adapter. Can get those with just about any cone filter kit on ebay

 

so I can just use an ebay adaptor and get a filter to fit ,but why doesn't companies like apex'i just make them if all it is ,is an adaptor?

 

Companies like Apexi do, just not Apexi. HKS for example.

Be careful of those ebay adaptors. Most are just a peice of pipe welded to a plate with a square hole, and flow like ****. Get a cast one like the one on this page instead, which has a properly shaped transition.