GMEFI Magazine

Features

Take Five: Sitting Down With Tom Mandrov of Sportmachines

Rick Seitz

April 5, 2025

photos by: Sportmachines A Quick Sitdown with Tom Mandrov of Sportmachines If you’re the owner of a GMC Syclone, Typhoon, or a Sonoma GT, then you’re probably very familiar with Sportmachines; a small business focused ...

New Products

Baer Brakes Announces Baer Spray Brake Parts Cleaner

Rick Seitz

March 31, 2025

Clean up those brake parts with the help of Holley's Baer Spray.

New Products

VIDEO: LS Swap With a Classic Look — Holley RetroFilter

Rick Seitz

March 28, 2025

Classic looks with modern functionality.

Car Reviews

VIDEO: Jay Leno Digs In On the CTS-V1

Rick Seitz

March 25, 2025

Jay Leno reviews a 2007 CTS-V.

Features

ProCharger Becomes the First to Offer a 50-State Legal Supercharger ...

GM EFI

March 17, 2025

C8 Corvette ProCharger legal in all 50 states!

Features

Take Five: An Interview With Tyler McCormack of Reversion Raceworks

Rick Seitz

March 18, 2025

We sit down with Reversion Raceworks' Owner and Founder, Tyler McCormack, to get a deeper understanding as to what they do, and how they do it.

Features

VIDEO: 800hp 6th-Gen Camaro ZL1 Built by FLHP

Rick Seitz

March 16, 2025

A ZL1 picks up 260hp and 205 lb-ft of torque to the rear tires, with the help of FLHP!

Features

VIDEO: Trans Am Worldwide Unveils the 70/SS Hardtop Convertible

Rick Seitz

February 11, 2025

The Chevelle is back, but only with the help of Trans Am Worldwide.

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New Products

Bring Your GEN-V LT to the Next Level with COMP ...

Rick Seitz

January 15, 2025

Stop the Deflection and Restore Lost Valve Lift with a COMP Cams Max-Lift BSR Shaft Rocker System for GM Gen V LT Engines.

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Features

VIDEO: Reversion Raceworks Digs Into a C4 Corvette

Rick Seitz

January 2, 2025

Reversion Raceworks pops open their long tucked-away C4 Corvette for R&D purposes.

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Features

VIDEO: FLHP C8 Z06 Makes Some Seriously Unexpected HP Gains

Rick Seitz

December 31, 2024

Bolt-ons on a C8Z. What are they worth?

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Features

Taking a Closer Look at the Sportmachines Super Stock Sy/Ty ...

Rick Seitz

December 23, 2024

The turbocharged GMC Syclone and Typhoon trucks haven’t rolled off of the GM assembly line in over 30 years, but their popularity and interest from enthusiasts have never been higher. Neither have the values, evidently, ...

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New Products