can anyone point me in the right direction of a DIY for exhaust and an extension?

please lemme know

 

what exhaust?
each have their quirks

 

Single Agency Power Exhaust

i need to use a extension with it (I have the extension)

 

if you can get access to a lift or a pit it makes it HELLA easy.
first thing you'll need is a either a strong arm or an impact gun. I believe the right sized socket is 17mm. and a wrench of the same size. just take the exhaust off piece by piece. and then reassemble with the new one. you may be able to take a piece off put a piece on depending on the design of the exhaust.
When removing hangers from rubber brackets I'd recommend using lots of wd40, let it soak in for a while then be prepared to pull and push like you never have before... using a screwdriver for leverage is highly recommended on those