One good thing about changing it so soon is the fact that the underside of the car is still clean, free of sand, dirt, pebbles, and anything else that tends to fall on you when you are trying to swap exhaust. It will also be easier to loosen it all up because it hasn't gone through nearly as many expanding/contracting phases due to heating/cooling, and it wont have ANY corrosion on it yet.

This only applies if you are putting it on yourself...and if you care to help your installer out if you wish to have someone else do it for you.

Just hang onto your stock parts - re-install them if you don't like it.

SQ