belfast2006, and the diagnosis of poorly go ???????.... options can be many:
1) high-voltage wires pierced lugs
2) pacifier chain tensioners and chain myself .....
3) See entire exhaust path somewhere ... something broke through untwisted ...
4) Can still cut catalyst ??????
5) Air Motor
6) Hydrojacks
over time, can better hear his car )))))) but in general ... make loud music and skate good ... knock out come))))