Depending on your power target for your project, having a suitable sized exhaust system is a must. The EK9 started off with a complete standard exhaust system. This would be woefully inadeqaute for serious hp.

CUSTOM PIPES of doncasrer were used to fabricate a 304 stainless 3" straight through system. This system had a single rear silencer and followed the route of the stock exhaust whilst still maintaining full suspension travel and good clearance.