HKS makes an exhaust for the non-turbo Juke, assuming you have the model with the HR15DE engine. I believe there is also a diesel version in some markets which would be different. Part number is 32021-AN003 ($480 USD)
If you contact your local HKS dealer you should be able to order this part. It looks to be very similar to the turbo version, but we do make it as a different part number, so there must be a slight difference between the two kits. Since the U.S. doesn't get the non-turbo version of the Juke, it's not a part that we're all that familiar with.
The intakes are also different. HKS also makes an intake for the non-turbo Juke as well. Part number is 70020-AN018 ($565 USD).
Stillen and Injen are both U.S. companies so they are not likely to know anything about the non-turbo Juke since it is not available in the local market. You can contact HKS Europe at +44 (0) 1480 431604 and they should be able to tell you more and how to order. You can also email them by using the form here: http://www.hkseurope.com/contact-us.html
Here are the diagrams of the HKS exhaust and intake for the non-turbo Juke: