Spent 2.5 hours with shop owner, we were limited for time so he allowed me use of the tools while he sliced and diced the exhaust. The new resonator was placed right before the muffler (there is an inline can already in the system from Nismo). I pounded out the H&R studs and replaced them with OE studs then mounted up the 25mm DRM spacers. At the end of both projects we lowered car back down to level before engine work to fit 29.2" tire diameter (same as GTR rubber diameter). Does that makes sense?
Anyway, we adjusted the pre-loads and finished up. Today I had it aligned as it has been acting a bit odd since the "big project". On smooth surfaces it squealed excessively and road bumps over 40 would produce slight wheel hop.
Car is slightly quieter, a big plus for me with regards to company customers and manufacturers. Ride is amazing, tires are a perfect fit for the car and if you are a 21" wheel owner and you want lower sidewalls but still want a quality ride you may want to consider Continental cross contacts, it is still very early but so far these are these are very similar in ride quality and performance to the Hankook RH06's (which I really liked).
Was worried about the look and feel of the 21's over the aggressiveness of the GTR's but the extra 1" of wheel size, lower profile tires and dropping the car back down really doesn't take much away. I am still considering painting the 21's but for now the surfer is just a bit more silver.......Again, really happy with the ride again nice to have the FX back in that way.