Finally got around to doing the valve cover gaskets this evening. Also changed the ignition coil boots and swapped in the 3.7 injectors. Need to adjust the injector K constant a little because its...

So my next mod is going to have to be a set of 3.7VHR injectors I have laying around. They are about 60cc higher flowing. After I added to the MAF table some this morning the car is hitting 101%...

Same place I have for years. Duster air cans.

Prior to any changes this car put down about 270 hp and 242 tq at 165K miles. Before the air intake changes, with the HPS hoses & K&N filters in the stock air boxes it made 326 hp and 282 tq at 210K...

Where the real power came from in this little V6 after adding headers and high flow exhaust. I modeled the engine with Engine Analyzer and spent about 4 hours modeling various intake and exhaust cam...

These are the stock manifolds. I think the longer equal length primary tubes and the nicely designed merge collector are responsible for the torque gains. A couple of small changes that make a huge...

And the equal length, merge collector shorty headers. These alone after the exhaust setup added 20 ft/lbs in places of the powerband in the low-midrange. Did not gain alot of peak power (9 hp...

This is the exhaust setup I am running. 2.5" dual on a 3.5L engine because it spins 7,800 rpm on the big end and likes to breathe. Car was instantly far more responsive after the exhaust and high...

Amazon kit installed on a G37. I like my install with the heat resistant silicone intake hoses better. Much less flashy under the hood and much less heat soak. Intake air temps stayed under 110°F...

This was the air intake tube setup the way they shipped. It was a $124 system. Great buy for the heat shields and filters. The piping bumped to 3" after the 2.25" MAF section and those flimsy thin...

Finished up my air intake setup on my G35 this afternoon after replacing the a/c compressor this morning. A/C clutch coil failed on it after 215K.

I was already running the HPS silicone intake...