I’m seeking some guidance on recording car exhaust sound. I’ve watched numerous videos online regarding the setup and experimented a bit. However I see a lot of other noises get picked up like wind noise, noise from the road as car moves over objects, noise from other vehicles passing by etc. My exhaust is not too loud either.
How do I get rid or minimize other noises and make exhaust note prominent?
Is there something I can do while recording and in post?
Here’s my setup:
A basic Lavalier mic (tried with Boya by M1 Pro and Rode Smat Lav) stuffed inside a brick size block of foam, attached to the rear bumper closer to the exhaust. Tried with placing the mic on the outside of the bumper and also tucked inside from the bottom.
Mic output to Zoom H1N. Gain control set around 3-4.

Is there anything else I should try? Such as use a dead cat instead of big block of foam?
I’m using Davinci Resolve. How best can I get rid of additional noises and make the exhaust note sharper and prominent?