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Vargas Turbocharger Technologies

VTT B58 GC/GC+ Turbocharger Upgrade

VTT B58 GC/GC+ Turbocharger Upgrade

Regular price $1,769.99 USD
Regular price Sale price $1,769.99 USD
Sale Sold out
Shipping calculated at checkout.



If you have any questions, please contact us.

Support power level

GC Stock-600WHP

GC-MID Stock-650WHP (2-Port Supra Only)

GC+ Stock-800WHP

Ready to take your B58 to the next level?  Don’t want to deal with core charges, long lead times, or restrictive factory housings? Look no further! VTT has you covered with our 100% new casting B58 “GC” “GC-MID” and  “GC+” turbocharger upgrade. We start by keeping the great design elements of the factory B58 turbo and removing the not-so-great ones such as the small factory inlet area, bearing housing oil structure, thrust bearing, and anything else we saw that could be improved upon.  With the basics covered, we stepped it up a level adding in proprietary VTT changes and finished off by having all these parts cast to OE quality.  What this means for you is serious B58 power made easy; GC’s are a drop in B58 turbocharger upgrade that supports over 600WHP while maintaining factory spool and all factory connections including oil, water, downpipe, and charge pipe.

Key Design Elements:

  • All new castings with factory restrictions removed. No oversized wheels stuffed into factory housings here! GC is cold side, and bearing housing only, GC+ is a complete unit
  • Full 3″ turbocharger inlet size with an included 3-4″ silicone inlet elbow that removes ALL factory inlet restrictions
  • 9 blade Mar-M 246 turbine wheel with the latest aero technology for increased flow while maximizing spool
  • 9 blade “point-milled” compressor wheels with the latest aero technology to maximize flow while virtually eliminating surge
  • Direct connection to ALL factory lines including oil, water, downpipe, and factory charge pipe
  • Redesigned, and improved internal components including bearing housing oiling, and an upgraded thrust bearing
  • NO CORE CHARGES. The new unit is sold to you outright. Keep your old unit in case you ever want to go back to stock. Or sell it to recoup your investment -it’s up to you!
  • No long lead times; once fully released production units will be on the shelf for same to next day shipping (please inquire about stock levels when ordering)
  • Full 12-month unlimited mileage/No Hassle Warranty. If you have an issue we will replace the unit no questions asked

Turbocharger Purchase includes:

  • 1 – VTT B58  “GC” turbocharger
  • 1 – VTT B58 “GC” 3″-4″ Silicone inlet elbow with adapters for factory connections
  • 1 – 3″ hose clamp for silicone inlet elbow
  • 1 –  optional 4″ connector for inlet elbow for use with different intakes (if you are not sure you need this, order it just in case)

As with any turbocharger upgrade it should be coupled with complimenting upgrades such as fuel system upgrades, intake, downpipe, intercooler, tune, etc. While you will see gains going from stock turbo to a GC/GC+ with no other changes, to realize the full potential of the upgrade other parts/tune must be added.

Be sure to grab a B58 install kit to ensure a quick, and trouble-free install!

The GC, GC-MID, and GC+ Come with a silicone intake tube, that will fit the stock airbox, and SOME intakes with no mods. It does not fit all, such as Injen, etc. If this is the case, you can either modify something work, or you can add the VTT MAF housing, and filter which will work with the GC inlet hose.


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Customer Reviews

Based on 3 reviews
Oshando (New York, US)
VTT B58 GC/GC+ Turbocharger Upgrade

Not bad as how ppl make it seem

Kenneth Harvey (Chicago, US)
The Perfect Budget/Value Turbo

Last year I was looking for a turbo upgrade and came across this turbo. I was on a budget for my vehicle and wanted something that wouldn’t break the bank. I was also looking for real world feedback to help with any questions I had on the turbo. There is a lot of information and reviews of this turbo on the Facebook B58 groups and YouTube. In a short time of research I was sold. Black Friday came along and Vargas turbos were almost 20% of so I pulled the trigger. I paired it with a TU fuel pump which was also on sale for $300. Once both items came in I was pumped not only because of the upgrade I was doing to my vehicle but also because of the money I saved in the process going with this turbo and fuel pump. If your power goal is around 500whp on 93 this turbo will get you there no problem but if you want to add an E85 mix I’ve seen people push close to 600whp on this turbo as well.

Not received .

I have still not received the turbo , its still with the shipping company without any reliable tracking . How can i rate it . Its been two months now.

Hi Walid,

We informed you the day you purchased the turbo that it was on backorder with a 3-4 week ETA and gave you the option to cancel it with a full refund if you weren't able to wait that long. You also chose USPS International shipping which has an advertised transit time of 7 to 30 business days, rather than DHL or FedEx which have significantly shorter transit times of 4-7 business days. Your turbo is currently on it's way to you, but as said before, it's through USPS which takes significantly longer than other shipping services.