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  • About GMEFI Magazine

Rick Seitz

Rick Seitz is the owner and founder of GMEFI Magazine, and has a true love and passion for all vehicles. When he isn’t tuning, testing, or competing with the brand’s current crop of project vehicles, he’s busy tinkering and planning the next modifications for his own cars.

New Products

FiTech Ultimate Rebel LS EFI Systems

Rick Seitz
June 9, 2025
FiTech Rebel EFI for LS engines.
54
Read more
Engine Tech

VIDEO: Florida High Performance Taking Punk’n to the Next Level

Rick Seitz
May 23, 2025
Round Two of LT4 supercharger lid test from Florida High Performance.
86
Read more
New Products

Build a 350 Cubic-Inch LS Stroker with Scat

Rick Seitz
April 22, 2025
You can finally have a 5.3L-based 350 cubic-inch engine, from Scat.
116
Read more
New Products

HOLLEY ANNOUNCES NOS OCTANE BOOSTER 

Rick Seitz
April 8, 2025
Boost the octane of your fuel on demand with NOS Octane Booster!
145
Read more
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 ...
182
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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.
152
Read more
New Products

VIDEO: LS Swap With a Classic Look — Holley RetroFilter

Rick Seitz
March 28, 2025
Classic looks with modern functionality.
206
Read more
Car Reviews

VIDEO: Jay Leno Digs In On the CTS-V1

Rick Seitz
March 25, 2025
Jay Leno reviews a 2007 CTS-V.
183
Read more
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.
195
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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!
209
Read more
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.
250
Read more
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.
235
Read more
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.
283
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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?
238
Read more
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, ...
361
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New Products

Dakota Digital Announces RTX Instruments For the 1982- 89 Camaro

Rick Seitz
December 19, 2024
Digital gauges for 1982-1989 Camaro in RTX form, from Dakota Digital
249
Read more
New Products

Reversion Raceworks 1.5 DIN Radio & Adapter For Late 4th-Gen ...

Rick Seitz
December 10, 2024
Bring your car audio into the current decade with the 1.5 DIN radio and adapter from Reversion Raceworks
333
Read more
Features

VIDEO: FLHP Cranks Out a 730hp Harrop-Blown C7 Z06 Corvette

Rick Seitz
December 9, 2024
Florida High Performance Harrop's a C7 Z06
382
Read more
New Products

BP Automotive Announces their Bare Essentials LT DIY Standalone Factory ...

Rick Seitz
December 9, 2024
Helping make that LT1 swap dream a reality, with BP Automotive's DIY harness kit
286
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Features

Dream Giveaway Announces Two Supercharged V-Series Cadillacs for 2024

Rick Seitz
November 1, 2024
Enter to WIN BOTH of these V-series Cadillacs from Dream Giveaway.
382
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Features

SEMA 2024: RINGBROTHERS UNVEIL 1,246-HORSEPOWER 1987 BUICK GRAND NATIONAL “INVADR”

Rick Seitz
November 5, 2024
RINGBROTHERS UNVEIL 1,246-HORSEPOWER 1987 BUICK GRAND NATIONAL “INVADR”
431
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Burnouts

VIDEO: Josh Stewart’s Formula Drift C6 Corvette

Rick Seitz
October 31, 2024
Supercharged C6 Corvette makes a statement at Holley LS Fest West
1962
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Features

Digging Into Why STA-BIL For Winter Storage is Necessary

Rick Seitz
October 8, 2024
Learning more about fuel, to protect your vehicle.
590
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Dyno

VIDEO: Florida High Performance’a Bad Punk’n ZL1 Camaro Makes a ...

Rick Seitz
October 7, 2024
If you’ve been reading GMEFI Magazine for the last year, you know we’ve been working with Erik Bentley at Florida High Performance for the last few years. Cranking out some of the fastest GM-motivated cars ...
1531
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New Products

Edelbrock E-Street Cathedral Port LS Heads Now at Summit Racing ...

Rick Seitz
October 7, 2024
Maximize your LS1 and LS6's potential with a set of Edelbrock's E-Steet cathedral port cylinder heads.
364
Read more
Buick

Car Feature: Big T Energy

Rick Seitz
September 9, 2024
Digging deep into the Watts Performance Regal T.
562
Read more
Features

VIDEO: Digging Under the Skin of the C8 ZR1 with ...

Rick Seitz
August 28, 2024
Mark Reuss joins the party at Jay Leno's Garage, pointing out all of our favorite subtle details on the new ZR1.
495
Read more
New Products

SDPC Announces Their Gen-V LT VVT Delete Wet Sump Front ...

Rick Seitz
August 27, 2024
Make your GEN-V LT engine operate more reliably with this latest piece from SDPC!
424
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Chevrolet

VIDEO: TopGear Reviews a Modified 1000hp Trailblazer SS

Rick Seitz
August 27, 2024
Taking a closer look at a 1000hp Trailblazer SS with some tuner appeal.
603
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Features

VIDEO: FLHP Installs the First Set of Kooks Headers on ...

Rick Seitz
August 1, 2024
Florida High Performance and Kooks Headers and Exhaust team up for C8Z R&D.
806
Read more
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VIDEOS

Industry News

VIDEO: Chevrolet Drops the Corvette ZR1X with 1250hp

GM EFI
June 17, 2025
Chevrolet unveils the 2026 Corvette ZR1X -- AWD, twin turbo, and 1,250hp.
48
Read more

VIDEO: LS Swap With a Classic Look — Holley RetroFilter

Rick Seitz
March 28, 2025

VIDEO: Jay Leno Digs In On the CTS-V1

Rick Seitz
March 25, 2025

Take Five: An Interview With Tyler McCormack of Reversion Raceworks

Rick Seitz
March 18, 2025

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

Rick Seitz
March 16, 2025

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