The Sans Classics parts stylish silencers / exhaust / muffler systems for bullet standard 350, bullet standard 500, bullet classic 350, bullet classic 500, bullet classic desert storm, bullet electra, bullet thunderbird 350, bullet thunderbird 500 is now available. This model is compatible with all i.E. Re models. The inner material has fitted which gives a bassy, thumping sound which is very dense and heavy giving a rider a true feel.