Quote:
Originally Posted by Tiago@VRSF
As previously mentioned, you definitely don't need a tune but you will certainly benefit from one when going with catless downpipes!  |
+1
Other then the sound benefit, there is little HP/TQ gain from downpipes without a proper tune. You will get better turbo spool, but again without a tune to take advantage of the new free flowing exhaust you are leaving a lot of power and gains on the table.
Mike