It's a Reyland kit so external, just need to whip the box out and mod it to suit

Everything is modded ready on the pedal etc so pretty simple installation once all the engine is out.

One thing i need to know regards to the bottle is can it be installed near the battery as i have no space on the exhaust side due to breather, heat shield and other part in the way so theirs no problem with a longer from the bottle?