bro! Please also provide the DB Killer link.😅

To be honest the one on eBay KO is much better

The DB-killer is included?

could you tell me what kind of product is it?

mine, I did 8 holes before the air sensor and after 1 week, the motorcycle acted weird, like it would go from 4000 to 9000 in a second making the clutch eventually slip and burn. did you ecu flash your motorcycle or maybe your works better since there are not holes before air sensor and the bike dont detect the lose of air with that aliexpress exhaust? let me know please brother, its your works fine now?

Yesterday I installed one like yours on my Honda CB650R. Haven't you noticed any pressure loss at any of the joints? Mine is leaking at the cylinder 1 header joint and at the last section where the clamp goes. I noticed an air-like noise, so I sprayed soapy water and saw bubbles forming at those two spots. I've bought some exhaust pipe sealant to apply there.

And one more thing, does your last section not slip out of the clamp? On mine, if I give it two hard revs, it starts slipping out. I'm going to have to mount the muffler clamp to the rear footpeg.

PS: It’s a lot of work to install.

Sounds stock