Scott G came to ZCG with the goal of making his G37 sedan a low-key street sleeper. After all, this 4-door,  AWD, automatic-equipped sedan was his daily driver and kid-hauler so attracting attention was not desired. Read further and we think you’ll agree that Scott has achieved probably the closest thing to a 4-door R35!

To add power we started with a GTM Twin Turbo kit.  Note the factory AWD system:

Turbo smart wastegates for the divorced down-pipes and modified oil pan:

Oil cooler,FMIC and intake details:

Even with the twin turbo kit installed, the engine bay looks surprisingly stock:

A full Stillen cat-back exhaust replaces the restrictive factory system.

The shiny muffler canisters were painted a stealthy matte grey finish to retain a factory-like appearance:

We visited Christian at 034 Motorsport to put the G37 on their awd dyno. The GTM turbos increased power from 278hp/258tq to 413hp/344tq, gains of 135hp and 86tq at the wheels:

Scott enjoyed the newfound boost and taking the kids to school turned into a much more “spirited” experience. With more power on tap he quickly realized that handling and braking needed attention.  BC coil-overs, SPC F/R control arms and Hotchkis sway bars were installed to tighten up the suspension:

In the braking department the G now sports STOPTECH’s huge 15″(380mm) front big-brake kit using the ST-60 6-piston calipers. ST-40 calipers on 355mm rotors are out back:

These gigantic binders are framed behind VOLK’s newest wheel, 19″ HOMURA 2X8GTs in silver. The wheels also demonstrate how much larger the BBK is compared to the stock brakes:

Here are a few before/after shots of the new stance and footwork:

Big brakes and nice wheels aside, it’s hard to tell that this mid-size sedan packs a 400hp+ punch. Scott’s commute and trips to school will always be fun and we have a feeling the kids can enjoy the ride too 🙂