Hi guys, 3" TBE installed today, Advance dump, 200 cell cat, resonator and XForce mufflers. All stainless, sounds awesome. Drove out of the shop happy as Larry, after 5 minutes of city driving got to open it up a little. Foot flat, in second gear after 3k RPM a sound came from the car like someone letting air out of a baloon, while stretching the mouth tight. Like a schreeching sound. This happened 5-6 times total, called the muffler shop and drove straight back. Up on the stand and they double checked, no leaks visible, all gasket material was fine. So if it wasn't a leak, WTF was it? While driving back the noise didn't happen at all, so i'm really confused...
Just have to keep it in S until Matt is back in Sydney Definitely needs a tune, it's popping a fair bit on gear changes.
Should probably add a mention for Paul at Muffler Center in Wollongong. Extremely friendly and helpful guy. Would definitely go back again!