I have recently chipped my 1.8TQM with Neuspeed. At full throttle with the engine warmed up and sunroof open, I can smell the tailpipe emissions. The smell is rather sulfuric - like exhaust emissions from a cold car. Has anyone with chipped cars noticed something similiar? I live in CA, so my car was running pretty clean prior to chipping it. Again, this only happens at full throttle, otherwise I can't smell anything suspicious.

I haven't found anything (and I've looked) about '99.5 susp. changes for U.S.