I have a 2011 Infiniti G25 and need some help with the performance. I just ordered an Injen cold air intake and I'm getting the exhaust done this summer but other than that I can't find any performance parts to boost the power. I have a bunch of exterior mods in mind, because anything that fits the 2011 G37 sedan, will fit my G25. The only difference is the engine. If anyone could give me some tips to boost the HP in my car it would be greatly appreciated. Thanks!

Welcome to NICO! I don't know a ton about the new engine in the G, but you might want to take a look at the Marketplace tab above. If you mention NICO, you'll get yourself a discount as well.

One thing to keep in mind with modern cars is to consider a tune for the aftermarket parts. Most newer cars are much more sensitive than the older models were and the ECUs tell the engines to run within specific paramaters. I've seen instances where a CAI will make an engine run lean and lead to detonation. The Infiniti/Nissan engine might not be as critical, but it is worth considering. As an added benefit, you'll also get the most power out of the added parts.

Ah, the VQ25HR... Unfortunately, it's not a common engine in the US.

You'll find it in the following cars:

2006–present Nissan Skyline V6 250GT Sedan - 235 PS (173 kW; 232 hp)
2006–present Nissan Fuga 250GT - 223 PS (164 kW; 220 hp)
2006–present Infiniti M V6 M25 Sedan - 222 hp (166 kW)
2010–present Infiniti EX J50 EX25 Crossover SUV - 235 PS (173 kW; 232 hp)
2011–2012 Infiniti G V6 G25 Sedan - 218 hp (163 kW)
2012–present Mitsubishi Proudia 250 VIP - 223 PS (164 kW; 220 hp)

...none of which (except your G) are US-market vehicles.

Might be worth checking these guys out: http://www.nengun.com/nissan/skyline-v35-250gt-v35