I'm planning on buying a used Tanabe exhaust, but not sure how much should I pay for it.
He said it's 2 years old, but not sure how many miles.

does age and mileage play that big of a role? and how much should i pay for them?

 

plenty of members on the classifieds here sell them and decently priced too

 

As long as there arent any dents, cracks or rust, there wont be any issue