big thanks to big wig for the airbox
Now what mods do I do(STD yb)drill where?pics please

 

Just like this m8

 

Think i follow your question??

Dont have any pics to hand as kept mine out of sight - to look more original. (standard rs500 top of box) I ran a 3/4 inch drill up and down the front face of the lower section of the airbox (in a series of holes) and opened up the side where the square section normally connects to the inlet pipe. Seemd to increase airflow quite a bit and I even had my pipercross air filter get sucked out of its mountings and into my turbo intake pipe. Luckily it didn't reach the turbo itself!

K n N jobbie in there now so problem solved.

On a T4 I got around 450 bhp without any difficulty using this technique to let the air in

Just seen KSAs post - maybe I misunderstood the question

 

you got it ok then fella?my mrs sent it off and reckoned she might have accidentally put a comb in the box too?lol.
glad to see its gonna get used for decent power again!

 

cut the full front off it!

 

That is what I've done to mine and it works very well. You get quite a bit of induction noise too without the drawbacks of a cone filter

 

as euan says cut the whole front of it

 

pictures?

 

trotter, "lightly modded" sierra so why bother, leave it be!