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intake outlet diameter? for DIY intake mod

61K views 61 replies 33 participants last post by  carmikey  
I AGREE, THESE INTAKES ARE WAY OVER PRICED. A CHEAP SILICONE TUBE AND A BREATHER FILTER THAT WOULD SIT ON TOP OF A VALVE COVER:laugh:, ILL DO MY OWN AND BETTER! STEADY GARAGE SELLS AN OVER SIZED THROTTLE BODY ASSEMBLY. IT SAYS ITS 26MM, I FIGURED ITS ABOUT 1 INCH
I was also curious about this. Just dont logically see paying $100+ for a little k&n breather filter and a piece of tube. If no ones knows off the top of their head, i will take it apart this week and check it out.
 
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I already cut my box with a 1inch hole saw. I dont have access to a bike dyno however the noise has increased alot. According to all these vendors with no dyno sheets. More noise means more power lol
your about right just went to the site and looked up that throttle body and it states "OEM stock size is 24mm, Chimera is 26mm! ALL OEM Sensors are intact". I will double check just incase.

Looks like the Dayco C71289 radiator hose will fit it has a inside diameter of 1.34" and already has a bend so all you need to do is cut it accordingly. Same hoses as a lot of the Grom guys are using to Mod their airbox.
 
****... thought about that the other day, but i was to lazy to pull the box... looks awesome, nice job!
No need to replace the hose just break the glue around the original hose that attaches to the air box. Pull the hose out of the air box and you will notice it has a lip on the end which is perfect then go buy a filter with I think a 2 inch diameter make sure the lip slides in the filter and whalaa.