Any views appreciated on this..
Have Supersprint back boxes fitted, when these were done there was no X pipe available to replace the mid section but now available in UK.
Does this make the car very noisy inside or droning / drumming through the
floor ? Back boxes made a small but noticebale improvement to the exhaust
note and am told that fititng the X pipe will give a nice rumble without being
intrusive. Intend to leave Cats and headers as is.
Intakes.. GruppeM intakes - intake noise of course increases but I don't want the 5 to sound like a mini with no intake filter.
Views from anyone who has fitted them would be good.