Originally Posted by Scootah
As far as mods go , I guess it was the next engine mod to do having done the tune, is it worth it , well nothing IMO gives the bang for your buck that a tune does. I like the new exhaust note , has a bit of a crackle to it when driving it hard.
I'll let the experts explain exactly what was changed , but believe it was something to do with where o2 sensor mounts hitting steering column.
Stu from BMR can elaborate on my wild guess
Definitely good bang for buck with the downpipes.
Yes the front o2 sensor is repositioned to give more clearance on our RHD steering racks.
Originally Posted by DR-JEKL
Did you get a re-tune done after installing the DP's?
I'm guessing it would be easier to do the ECU mod JB4/Cobb etc CAI & DP's all at once but it would be nice to add each part 1st to feel the gains each mod makes on the car in terms of power and the acoustics.
No need for a re-tune afterwards
Doing it all at once doesn't make a difference compared to doing it in stages... best to do it in stages in fact so you can indeed feel the differences being made.
Most N54 tunes only take 30mins to install, whether a piggyback or flash.