The cat is part of the down pipe you will have to change the whole down pipe too.
But if your going to do a k04 conversion you will need a custome down pipe too.
Better off just getting a full turbo back exhaust for your current setup then when your ready get a k03 hybrid instead of a k04. Same power.
does it matter if its a k03 or a k03s if you wanted to hybrid it? Is it better to have one or the other?
so basically if i get a k04 i will have to get a custom down pipe and sports cat???
Plus to fully install the k04 from a TT or LCR your going to also need
Vibrotechnics Uprated Engine Mounts
Genesis Uprated Injectors
4 Bar Fuel Pressure Regulator
4 Bar Fuel Pump
3" Air Mass Meter
New Turbo Intake Hose
and
a remap
probably new oil and coolant lines as the 225bhp turbo is not in the same location as the ko3's
uprated diverter valve
Probably best to hybrid the KO3 then!
You would still need all of these for the hybrid too though.
Genesis Uprated Injectors
4 Bar Fuel Pressure Regulator
4 Bar Fuel Pump
3" Air Mass Meter