wondering anyone has the ST system with cat, or the GTS system with cat. How's the sound on it, i don't want it too loud. Any videos? or anyone Near 91789?, Walnut, California.
thanks.
wondering anyone has the ST system with cat, or the GTS system with cat. How's the sound on it, i don't want it too loud. Any videos? or anyone Near 91789?, Walnut, California.
thanks.
The new GTS system (which has no cats) is quieter than the ST (which has very high flow metal-matrix cats) system. It's not a huge difference between the two, but you definitely notice it.
A fully warmed-up M5/M6 in properly maintained condition should pass the sniffer without the secondary cats. If you remove the primary cats (which are attached to the headers), you will definitely not pass. In terms of visual inspection, I guess that depends on where you go.
The GT system (straight through) is the loudest, then the ST system (catted), and the quietest is the GTS system (resonated).
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