First one is Simota made of gauze paper. Provides good filtration and good air flow
http://i.minus.com/iy30gFWoE9TyJ.jpg
http://i.minus.com/ibcd1SaABSXHyV.jpg
http://i.minus.com/ihmhP1pWdu7Qm.jpg
Price: 15gbp delivered
Second is Blitz made of stainless steel mesh. This one gives best air flow gains (suitable for turbo) while sacrificing filtration.
http://i.minus.com/ibmvbL5D1Bbof8.jpg
http://i.minus.com/iRPhkPGUJ6EvA.jpg
Price: 15gbp delivered
Both no longer available
http://i.minus.com/iy30gFWoE9TyJ.jpg
http://i.minus.com/ibcd1SaABSXHyV.jpg
http://i.minus.com/ihmhP1pWdu7Qm.jpg
Price: 15gbp delivered
Second is Blitz made of stainless steel mesh. This one gives best air flow gains (suitable for turbo) while sacrificing filtration.
http://i.minus.com/ibmvbL5D1Bbof8.jpg
http://i.minus.com/iRPhkPGUJ6EvA.jpg
Price: 15gbp delivered
Both no longer available