GS - Metallic 'Chatter' when cold

[tomoshea]

Has anyone mentioned a dead cat?
I ruined the rhs front cat at a track day when the car went into go slow warning mode.
It would rattle at low revs.
Had to replace the front pipes with Larini's.
Best investment, really freed up the breathing.

I was concerned mine was a loose / damaged cat and be us ethe noise wasn't easily localised ended up looking at both as first port of call. But both were fine.