Just had my O2 sensors replaced and my R32 GTR runs much better!
During cruise and light throttle the car is more responsive and quieter! I no longer have to down shift to go up small grades and the fuel economy is better. I should have done it sooner!
About a month ago I took my car out to Hills Motorsports to have them run it on the dyno. Before we started, they hooked up the diagnostic tool and found my rear O2 sensor was dead, and the front was not responding very well. At R32 GTR owners know, the Titania sensors are expensive. I shopped around and found Kudos Motorsports had the best price on 2 new sensors. I gave them my info and received the O2 sensors within a few days. I took my car back out to Hills Motorsports and they installed them for me. Driving away from the shop I noticed an immediate improvement in the throttle response during light throttle. A side note, the black on the back of my white car from the exhaust has reduced considerably.
Thanks Hills Motorsports and Kudos Motorsports! I would recommend using both of these businesses!