a std air box or induction kit on my ERST?its std airbox at the mo,should i bother changing it?

cheers

 

Are you running standard management?

If so, then i always got told to run standard air box. I just cut the front off mine and use a standard ford paper air filter, works a treat

However i think the difference, performance wise, between using a standard air box and cone filter is so minimal, its not worth worrying to much about

 

ive got a chipped ECU if thats what you mean?

 

Use standard drilled airbox with K&N/Piper X panel filter