hmmm...there seems to be a little misconception about the turbos used in our kit compared to those in the greddy kit.
First, yes, the mitsubishi 18g and 20g turbos are bigger than the garrett gt2860rs turbos we use in our stage 1 kit. That said, all three turbos are more than enough to blow up your stock engine if pushed...so in this case, bigger is irrelevant. The key is reliability and responsiveness.
The garret turbos we use are ball bearing, water cooled units that can take a lot of abuse. The mitsubishi turbos greddy uses are inexpensive, old designs that are oil cooled only and use old fashioned journal bearings. Do they do the job? Sure, but so does an old carburated, push-rod v8...old technology...who cares.
Our twin turbo kit uses a high efficiency bar and plate intercooler, whereas the greddy kit uses an inexpensive and restrictive tube and fin intercooler.
Our turn key kit is $7,495
gtm motorsports*::*forced induction*::*gtm 370z (turn key) twin turbo kit
greddy's tuner kit is $9,520
greddy
our turn-key kit includes engine management, fuel system upgrades, and tial blow off valves...the greddy kit comes with none of that! Even if you got a smoking deal from some guy selling a greddy kit out of his garage for $20 over cost, you still end up paying more in the end with a greddy kit because you will still have to buy blow off valves, engine management and fuel system upgrades.
So why pay more and get an incomplete kit with inexpensive components?
We're more concerned with making the best possible product for the best possible price with the most value for our customers. And if our customers have questions, we're here to help you understand what you're getting into and we're here to support you to ensure that you are happy with the product you get and that it performs.
Anyway, back to the whole turbo thing. Let's say you have a built motor and are looking for big power. Well, the greddy kit has bigger turbos you say. Have you looked at our stage 3 turn-key package? $8,495 (still less expensive than the greddy tuner kit) gets you a pair of garrett gt3071r turbos that push more air than the 20g turbos could ever hope...even if you sent the 20g's out to blouch and had them upgraded with billet compressor wheels and clipped the turbines (more $$$).
Let's even argue that you could step up the 20g's to 25g's instead...have you seen our stage 6 kit? A pair of fire breathing garrett gt3582r turbos pushing 65lbs/min each. Guess what else...our stage 6 kit is still less money than the greddy kit.
Ultimately, we offer the best bang for the buck, whether you want a twin turbo kit or a supercharger kit.