Which one would you recommend between stillens supercharger or greddy's turbos? Looking for reliable and still put power down. Don't want to blow anything or have issues later on because of it. Thanks

Vortech.
Turbos are risky on stock block.

I think Stillen has a "copy" of the Vortec now.

Okay thanks a lot. Do you guys know by any chance how much hp gains it gives?

Thats only for the VQ37.

OP didn't say what year he had.

The Vortec CAN get up to 500 RWHP on stock motor. But I wouldn't recommend it. 425-450 is as high as I would go on stock internals depending on the model (some have weaker con rods), the age and mileage/condition of the motor. Keep it under 8 psi and you should be fine.

Sorry for not saying the year. Its a 2006 g35 coupe

Stillen SC for the G35 is garbage. Biggest waste of money ever. Get a Vortech V3. Best price/performance/reliability combo available for the G35.

Anyone have any recommendation for the hks supercharger for the g35 is it better then the vortech v3

No.

If you want to see big power down the road go for what I did. I was about to pull the trigger on a Vortech V3 Si kit w/3.25 pulley but then ran into a freshly rebuilt Greddy 18G TT kit.

Stock block. Greddy TT. Electronic Boost Controller. Return fuel system. Radiator. Oil Cooler.

Tune for a safe power level. When she blows months/years down the road swap a shortblock in, beef up the injectors, and tune for 500+HP.

Go Vortech if you don't think you'll get power hungry down the road. I'm the type that would be posting a Vortech for sale ad in a year if I pulled the trigger so I took this route... my o2.

Boosted Performance, Mid mount turbo!!!!