Your pictures look like stainless steel. It won't bend like aluminum to fit your bike.
Which exhaust are the pictures from? It looks like an FMF exhaust.
I dont intend on bending my exhaust ive removed the stock airbox & carb and freed up a lot of space seems like the only choke point is by the clutch cable. The exhaust in the pictures is a Belparts CRF230F exhaust and it outperforms the yoshi from my understanding. It is a brazillian company and they have some great headers on the market with the fmf style which i love. I wish I could just bolt on a fmf megabomb but i know thats almost impossible on a 230 as there are no years compatible only powerbomb :'( Belparts makes a megabombish like header with a FAT expansion chamber heres another youtube link with it on a crf230!
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part time handyman and full time rider.. i only have 2 years riding experience but ive fallen in love already and its kept me off the streets until now!