The Standard Exhuast system was replaced from the cat back with a second hand HKS Superdrager, very soon after fitting the cat bypass pipe the mild steel baffles came loose, so on a recomendation, we went to Tube Torque in Macclesfield, were Mark created a HKS hybrid with a staight though Stainless Steel rear box and re-used the existing 4" HKS Tail pipe