Anyone who has experience on modifications please help me
out here.
I am thinking of having my S4 modified once it has arrived.
Two Options :
Milltec UK claim a 420 Bhp with chiptuning, sportsexhaust
and catback system
B&B Germany who offer an upgrade in 5 stages to a max of 400 BHP ( last meaning an 8 day 2 technicians modification of the engine )
Milltec at £ 2750 for 420 Bhp and BB at Euro 6800 for stage 3
( 380 Bhp).
Milltec seems to have more perfomance for less money however
this seems to good to be true. Somehow BB looks more
realistic ( both pricewise and performance claimed )
Does anyone have experience with either of them ?????
Thanks