can anybody recommend a place to tune extractors? i'm not sure if every single exhaust place does this but i'd rather go to someone that people on here have dealt with in the past, cheers
Do you mean tuned length extractors???
Tuning extractors is really only practical for racing cars that have defined operational rev ranges and they are relatively narrow for optimum performance. It is possible for street cars but really any quality set of tri-Y headers will do the job. Just don't go too big and/or long with the primary pipes. Have a hunt around the net for more theory on extractor (and also intake runner) design than you can poke a stick at if you are super keen.
Reaper