I have personally not used these filters on my cars,but i have used friends cars with these filters,the green is quite silent and k&n even the replacement ones give u a slight wizz sound(Petrol cars,no idea abt diesels),u need to get a tune up done,cos air to fuel ratios change once u install these filters(air mass meters are sometimes contaminated),no matter what life is claimed,its better to get them cleaned every 8000 kms,still if you want a good sound its better to go for K&n.
I have driven swift 1.3 with green filter,quite silent under the hood, k&N have always been kinda vocal which gives you a thrill though.
End of the day these replacement filters dont really do much unless your engine is turbo'd or you have a high performance liter to power ratio machine like super bikes.
In regular Indian petrol cars cat con(Environmental) itself restricts the engine so much that these air filters look very pointless.