Looking for a place to buy a custom sized air filter

[CVD]

I have a 4" intake pipe and no MAS on the colt so it seems a shame to have to neck down to fit an air filter. Anyone know where I can buy a decent quality K&N style air filter? Not some cheap POS that's going to have its guts sucked into the turbo either.

[goodhart]

I believe K&N makes custom ones you can order.

[CVD]

Cool, thanks. Just picked one out from their website.