SAM-UK300

iTrader: (8)

Hi all,

My car was recently mapped with a blitz nur spec R on... I have since changed to a afterburner exhaust. I assume there is no need for a remap? I.E the difference in the 2 boxes must be tiny?

SwissTony

iTrader: (19)

As far as I remember the only real need for a remap is if the car has had any change to fueling including injectors, induction, going from top mount to front mount and turbo upgrade
Something like an exhaust shouldn't need a remap as like you say the difference is tiny

brendy76

iTrader: (6)

Not required.

SAM-UK300

iTrader: (8)

Cheers for replies guys... what about if the backbox was removed completely? still not make a difference?

Tidgy

Should be fine, no one can say yes it will be fine 100%, changing the exhaust can change the exhaust flow, which can affect the map.

RR will be the only way to tell 100%

SwissTony

iTrader: (19)

It will sound **** and run crap

bludgod

iTrader: (3)

probably won't add that much volume to it - nurspec/vortex aren't exactly "stealth" as it is

from the handful of backboxes i've tried on mine the map has been fine each time - but the vortex did seem to show power gains over STI standard one.