Stealth Mach 2 67 VGT - L5P is an easy to install 800 rear wheel horsepower capable upgrade that lights quickly, controls EGT's under heavy load, allows to turbine braking during towing, and kicks ass when leaned on. Building this line of Stealth's meant designing a turbo that would be safe to tow with, fun to drive every day and perform at competitions. If you think street-able, clean, stock-appearing power is cool then this is the turbo for you!
The L5P Stealth Mach 2 67 features the largest turbine and vanes available in this frame. Increasing turbine size dramatically reduces drive pressure under heavy load, helping you achieve nearly a 1:1 drive to boost ratio under most operating conditions. Controlling drive pressure helps make more power and significantly lowers EGT's. Stealth turbos featuring Calibrated's HFV upgrade are capable of producing more power, spooling up quicker, and managing EGTs better than those limited with factory nozzle rings.
Your truck is going to experience increased performance across a wide operating range due to Calibrated's proprietary HFV assembly, oversized turbine wheel, and billet compressor wheel. Built from brand new parts, this turbocharger won’t require a core charge. The optional actuator is pre-calibrated and the entire turbo comes ready for installation.
If you're wondering whether or not you should buy an actuator to compliment your Stealth turbo, allow us to share our thoughts. The L5P actuator has a very low failure rate in the field. The fact that it's well-cooled and not in close proximity to the hot parts of the turbo means that it's out of harm's way. Unless you're experiencing codes that indicate actuator issues or know for a fact that your actuator is somehow damaged, we would suggest saving your money and retaining your factory actuator.
NOTE: You should strongly consider custom tuning to go with this turbocharger upgrade. We have made up to 650 RWHP when matching this turbo with Emissions Compliant Tuning.
Replaces the following GM Part #s: 12709701044, 11547786, 12683985, 12689094
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