THE MY LINK SYSTEM TEMPERATURE READINGS WERE READING 133 DEGREES WHEN THE TEMP WAS REALLY 64!I TOOK IT IN AND THE DEALER SHOWED ME A TSB SAYING THAT WHEN YOU DRIVE BEHIND A CAR THE SYSTEM READS TEMPS FROM THE EXHAUST IN THE CAR IN FRONT OF YOU!THEIR SOLUTION IS NOT TO DRIVE BEHIND ANYONE!GREAT JOB GM!THE DUAL MODE EXHAUST WHICH IS A $895 DOLLARS OPTION WENT AFTER 248 MILES. SOUND SO BAD LIKE AN OLD CATALYTIC CONVERTERS GUTS WENT INSIDE!PARTS HAS BEEN ON ORDER FOR 2 WEEKS AND ITS ON NATIONAL BACKORDER! ALSO STILL WAITING FOR A STEERING RACK!MY RIGHT SHOULDER WAS SEVERELY INJURED WHEN I COULD PARK IN A SPOT AND THE STEERING WHEELS PRESSURE TOOK A MIND OF ITS OWN!SEVERE PAIN! *TR