In Corvette tuner circles—and performance car circles in general—Callaway remains a legendary name. From the simply bizarre to the purely awesome, the brand has run the gamut, but now it’s working with the best Corvette ever: the 2015 Z06.

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Due for an official unveiling at the National Corvette Museum C7 Bash in the Corvette’s home of Bowling Green, Kentucky, running April 23-25, the 2015 Callaway Corvette Z06 promises upgraded performance through extra power (an undisclosed amount as yet); plus Callaway-specific aesthetics.

The upgrade list includes:

-Callaway GenThree Supercharger (pat. pend.) with Triple-Element Intercooler System
-Callaway Supercharger Surround Hood Trim Ring
-Callaway Carbon Engine Covers
-Callaway High Flow Air Intake System
-Callaway Embroidered Floor Mats
-Callaway Anodized Aluminum Door Sill Panels
-Callaway Exterior and Interior Badging
-Callaway Underhood Build Plaque with Vehicle Identification Number
-Callaway Key Fobs
-Callaway Authenticity Documentation Package
-Callaway 3 Year, 36,000 Mile Limited Warranty

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That GenThree supercharger? Callaway says it displaces 32 percent more than the stock Z06 supercharger, and it mates with an upgraded manifold design and a new triple-element intercooler for improved heat-soak resistance. Another change: the supercharger’s plenum is exposed to the ambient air through a hole in the hood.

How much will it set you back? A cool $16,995—plus the Corvette Z06 it’s built on.

Look for more details after the official unveiling later this week.