Re: Air filter options?
What happened to your existing airbox?
Is it not repairable? A bit of fibreglass tissue, resin & P40 can fix virtually any airbox damage. Just clean the plastic with dilute washing up liquid and rub down with 80 grade before applying any resin / P40 and it's really a doddle & would save a fortune. The P40 can be used to build up and reinforce flanges, or fill cracks before covering with tissue inside & out.
Even if the airbox is totally mullered, you could recover the inlets, outlets, flanges and fixings and spend a Sunday replicating the original housing...
If you've got any piccies i could give you a repair plan.