Quote:
         
 
          
          
            
            | 
               Originally Posted by 
              TarmacED  
              At the same time, Ill be honest, this filter buisiness with the seperate stages is confusing me a little - from what I have read this set will give a decent performance boost, but can I add any other filter elements to the bike along side it, should I?
              | 
 
          
         
 
         You can fit a stage 3 filter (replaces the LHS airbox cover) alongside the stage 1 inner filter and stage 2 top (snorkel removed). You don not need to replace the airbox to achieve stage 3 on the Z (only on X/R models). I'd just fit the inner filter and top to achieve stage 3 to start with and see how you go. Leave stage 3 till you get bored with what you've got and want more! 
        
 
         
         Here's a rough guide to XTZ DNA filters (in pictures) which will hopefully make everything a little bit clearer:
         
         
        

 = Stage 1
         
         
        

 + 
        

 = Stage 2
         
         
        

 +
        

 + 
        

 = Stage 3
         
        
 Removing the snorkel effectively does the same job as fitting the Stage 2 DNA airbox top.
         
        
 There is also a restrictor insert you can fit in the Stage 2 top cover to effectively make a Stage 1.5, which would be as far as you could go with out modifying the fuelling to suit by fitting either a Kev Mod or Power Commander.