GM EFI Magazine

News

Video: A Look Behind the Scenes of Corvette C8 Design ...

Elizabeth Puckett

January 14, 2021

GM designers completely knocked it out of the park with the redesign of the Corvette for the 8th-generation. The new looks were largely out of necessity to accommodate the most radical drivetrain change the moniker ...

News

Video: BP Automotive Demonstrates Quality EFI Simplified LS Swap Harness

Elizabeth Puckett

January 6, 2021

BP Automotive makes your favorite engine swaps a cinch, learn more about their process now.

New Products

MAHLE Motorsport Introduces LSX ComboPowerPak Piston Kit for LS Engines

GM EFI

December 17, 2020

MAHLE Motorsports valve pocket design universally fits LS1/2/5, LS7, LS3/92 style heads.

192

Features

Video: Sixth-Gen Camaro Sprints Into The 8-Second Range With Stock ...

Elizabeth Puckett

December 17, 2020

This sixth-generation Camaro ZL1 is in pure beast mode as it tears down the track to cover the quarter-mile in record time!

Features

1982 Chevrolet C10 Pickup Gets Junkyard 5.3L Transplant and LS-Power

Elizabeth Puckett

December 12, 2020

PCM of NC, a GM performance builder, tipped us off to this LS-swapped C10, and it's quite the pickup!

239

Editorials

Colby Malone: Car Guy to Dad Mode

Colby Malone

December 11, 2020

Colby Malone reminds us that the party doesn't have to be over after you have kids.

208

Features

More Information Is Leaked About the CT4-V Blackwing and CT5-V ...

Elizabeth Puckett

December 10, 2020

New updates about the CT4-V Blackwing and CT5-V Blackwing models make us wish Cadillac would hurry up and make them!

268

Features

Video: Gold Rush Trans Am Honors Past And Future

Elizabeth Puckett

December 9, 2020

Trans Am Worldwide is not letting the Trans Am die - find out what they have been working on lately!

217

New Products

Wilwood Announces Road Race Brake Kits for C5 Corvette

Rick Seitz

December 7, 2020

Make your C5 Corvette more competitive in the corners with the help of Wilwood Brakes.

244

Features

VIDEO: Top 5 Easiest Silverado Mods, Courtesy of AmericanTrucks

Rick Seitz

December 4, 2020

Official Release: Top 5 Easiest Silverado Mods | AmericanTrucks New Episode of “The Haul” Targets 2014-2018 Chevy Silverado Owners PAOLI, Pa. – E-commerce aftermarket parts retailer, AmericanTrucks (AT) rolls out another episode of “The Haul” ...

143

Features

Video: 2000hp CTS-V Resets World Record

Elizabeth Puckett

November 16, 2020

As they reset their own record, this Cadillac (once again) becomes the worlds fastest full body CTS-V

392

Features

Supercharge Your LS Swap with ProCharger!

GM EFI

November 11, 2020

ProCharger helps those with LS swaps get boosted!

206

New Products

American Powertrain Announces New TREMEC TKX 5-Speed Transmission

Rick Seitz

November 9, 2020

American Powertrain and TREMEC now offering the brand new TKX 5-speed transmission.

442

New Products

Summit Racing Announces Replacement Turbochargers for OE GM Vehicles

Rick Seitz

November 4, 2020

Summit Racing expands its line of OE turbochargers for late-model GM vehicles.

421

New Products

Remove Rust From Your Aging Steel Gas Tank with KBS

Rick Seitz

November 2, 2020

KBS Coatings announces their own Fuel Tank Sealer Kit for rusty steel gas tanks.

344

Vehicle Spotlights

VIDEO: AmericanTrucks Spotlights a Modified 2010 Silverado

Rick Seitz

October 20, 2020

AmericanTrucks spotlights a customer's 2010 Silverado.

417

Features

Earn 5% Off Of Your Next IROC Motorsports Purchase With ...

Rick Seitz

October 20, 2020

You can save 5% on all of your favorite IROC Motorsports products, only from GMEFI Magazine!

236

Industry News

MAHLE Motorsport Celebrates a Century of MAHLE Automotive Innovation – ...

GM EFI

October 14, 2020

You have to get in on this!

435

New Products

Kooks Super Street headers & Ultra-GREEN OEM connection pipes now ...

Rick Seitz

October 9, 2020

Kooks Headers and Exhaust have launched headers for the C8 Corvette to pave the way for big power.

446

New Products

Red Line Synthetic Oil Expands Cooling System Line with New ...

GM EFI

October 7, 2020

If you're looking for a new way to keep your engine cool, check this out.

375

New Products

Red Line Synthetic Oil Products Support Maximum Vehicle Performance in Hot Weather Conditions

GM EFI

October 5, 2020

These products will help keep your vehicle's cool.

374

New Products

MEGUIAR’S ANNOUNCES ALL-NEW DETAILING TOOL TO MAKE REMOVING DEFECTS EASIER

GM EFI

October 5, 2020

Swirls & defects have nowhere to hide with this paint inspection light

393

Features

VIDEO: WIN a CTS-V Championship Edition from Dream Giveaway

Rick Seitz

October 2, 2020

AutoCentric Media announces the CTS-V Championship Edition Dream Giveaway.

334

New Products

Lingenfelter Ported LT5 95 mm Throttle Body for GM Gen ...

Rick Seitz

September 29, 2020

Lingenfelter announces a high-flowing throttle body for LT5.

465

Features

Win 100% Off Coupon Courtesy of Barricade Off-Road from American ...

Rick Seitz

September 24, 2020

Official Release: Win 100% Off Coupon Courtesy of Barricade Off-Road AmericanTrucks’ Newest Sweeps | Enter Daily Until 10/24/2020 PAOLI, Pa. – Sponsored by Barricade Off-Road, AmericanTrucks’ (AT) newest sweepstakes offers the opportunity to win an ...

263

New Products

Hooker Blackheart’s LT Turbo Exhaust Manifolds Now Available

Rick Seitz

September 23, 2020

Hooker Blackheart announces cast iron turbo manifolds for GEN-V LT engines.

424

Trending now

THE LATEST FIVE

TECH

FEATURE CARS

LATEST VIDEOS

NEW PRODUCTS