wrx with prodrive, full exhaust system or not
 

hi got a 04 plate wrx with prodrive i think lol, got prodrive pipe in engine bay and back box. but there is 3 cats on the exhaust system. am thinking of getting a full straight through stainless system from the downpipe, will be £200 from POWERFLOW if i keep my prodrive backbox or around £360 if they include a backbox. what would i benefit more from?

best benefit would be a used sti up pipe and prodrive sportcat downpipe, you already have decat centre, just the heat shields are still on so looks like cat is still there, after this a de res centre will be the next investment. Thats what I did