stock 2008 superglide bike runs fine,would like to cut down the heat at the back of the air cleaner .would a different air cleaner help any.or changing the filter make any difference .would like to stay stock if possible

 

You mean the heat coming off the heads? The XiED is the simplest way to reduce engine heat a bit. These are little resistor networks you plug into the O2 harness that cause the EFI to run just a tad richer closed loop which reduces how hot the engine runs. If that's not what you meant then never-mind.