Ok the Tenere DNA filters are splitted in 3 stages.

You have the main filter the one that looks like a bog roll, lets call that one Stage 1

Then DNA pioneered and designed a top cover filter which replaces the snorkle allowing yet more air in the airbox, that would be Stage 2

Then they have developed an additional filter which has shown sensational results and that is the side cover filter Stage 2(3) the (3) between brackets means it will only give stage 3 performance when used in conjunction with the other 2.

So if you want top performance you need all 3.

Now onto the shipping costs when ordering multiple items. I have myself questioned DNA hoping to obtain a reduced cumulative shipping price when multiple items are ordered however Mr. Nikolaidis put me on the spot when he explained that each item is shipped by UPS Courier Worldwide and each is priced in relation to their bulk sized box and weight and if you throw all 3 in the same box you end up nonetheless with a great big box which weights a lot.

And that my friend is nothing I can do about it, however, DNA do throw some case candy in the bargain allowing you to buy a much needed cleaning kit containing 2 bottles one is the cleaner and the other is the reactivator oil, at half the normal i.e. €5.50 as opposed to €12.

And finally don't forget that if you buy from me privately and not from the e-dna website, you will receive a forum discount of 10% over the retail price of each item.

The choice is yours.

If you buy the stage 2(3) filter you also get 2 power commander maps one for standard exhausts and the other for aftermarket ones like Akrapovic etc.