Just re-installed my challenge x-pipe SPORT. Originally had the race version but was not a good sound match with the Dinan rear so I ended up going with the HFC version.
I've read several threads on here where guys rave about the power increase. In all honesty, i feel NOTHING in terms of power. In fact, if anything the car feels slightly less sharp and responsive. I didn't really feel a bump with the RACE version either
Has anyone experienced this? Should there be a night and day power bump? BTW I have Dinan stage 2 tune so it's all textbook installation.
Has anyone actually done Vbox runs before and after? I'm less interested in Dynos because they don't tell you how he car feels, runs and performs.
Thanks all.