First you will click on post new thread

Then you will title your new thread with your cars Year Make and Model

Then in the text body section you will put a brief description of your tunes mods so that other users can get a tune that is closely similar to their own setups

Then you will click on the icon that looks like a paper clip(it can be found near the button that changes the color of your font and right next to the smileys button)

Then you will click on the green + button in the upper right hand corner that says ADD FILE

Then you will click on CHOOSE FILE

After selecting your bin file you will then click the little red button that says UPLOAD

When that is done it should add your bin file to the attachments section on the lower part of that screen

make sure your bin file has a check mark next to it

then click INSERT INLINE

Then Click DONE

Your file will now be attached to your original text body



Only certain file types are allowed... IF for some reason it wont allow you to upload a file type feel free to get ahold of one of the members of the moderation team to see if we can correct your issue.