I have an '04 6MT coupe with stock 18's...Purchased OE 19 Rays off eBay with original TPMS. I had the seals replaced on the TPMS prior to mounting the new tires..Falken FK452's (245/35 & 275/35).

To my surprise, when I mounted the wheels/tires, I got no indicator light on the dashboard and have gone approx. 100 miles. TPMS is working as I had light come on this week, prior to install, due to temperature drop.

I thought the TPMS would have to be "reset" because of the different TPMS's on the newly installed wheels. I'm not sure what year G35 the OEM 19's were on...Happy so far, but what's up?

 

Try going on the freeway for about 20min.