Quote:
Originally Posted by The_Blur
I would advise to upgrade everything possible. There's never a bad reason to improve the integrity of your expensive performance parts. Supporting upgrades involving parts close to the source of that extra power should always be encouraged. The alternatives, while not certain, could be much more expensive as they won't be covered under your warranty. Think of this $700 as a warranty on the system's reliability.
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VERY WELL SAID!!!
As far as the upgrade to the ball bearings, I say DO IT!!!
They allow the turbine shaft to spin with less friction than the fluid bearings used in most turbochargers. They also allow a slightly smaller, lighter shaft to be used. This helps the turbocharger accelerate more quickly, further reducing turbo lag.
Are you going with Turbonetics? GREAT COMPANY/PRODUCTS!