pacemaker ceramic headers ~500
2.25" magnaflow hiflow cat ~230
2.25" stainless flex section ~60
stainless cannon muffler ~100-150
resonator ~60-200 depending on how long it is and if its mild or stainless
2.25" pipework and labour ~100-200 depending on if its mild or stainless.
mild steel will give you the surface rust look in about 2 months