Not just yes...but HELL yes. A typical rebuild usually includes seals, oil and N2 - with an untrasonic bath. Local shops usually get around $125-$150, and I've seen some of the shops on line that do pro level work that usually include a new bottom cushion, and any adjustments to the valving at $250...or higher (my DRZ has one of those expensive jobs because it required a lot of valving work after it was internally shortened). If you need a new spring, add another $110 to the bill.