Skip to the content

Mon–Fri: 8AM–5PM
Email: gregadams@gregstuningoperation.com
Phone: (573) 718-8733

Home
Dyno & Tuning
Installation
Shop Performance Parts
Local Events
Resources
Merch
Social Media/Brand Partnerships
Contact Us

Greg's Tuning Operation

Search for products

Home
Dyno & Tuning
Installation
Shop Performance Parts
Local Events
Resources
Merch
Social Media/Brand Partnerships
Contact Us

Home » Holley EFI

Holley EFI

Sort by:

Most relevant

View as:

2 Products

Holley Performance Products

In stock

AEM X-Series OBDII Wideband AFR Gauge Kit

Regular price $299.95
Holley Performance Products

In stock

HOLLEY EFI TERMINATOR X MAX - LS1/LS6

Regular price $1,999.95

AEM X-Series OBDII Wideband AFR Gauge Kit

Regular price $299.95
HOLLEY EFI TERMINATOR X MAX - LS1/LS6

Regular price $1,999.95

Greg's Tuning Operation

20075 US Hwy 61

Sikeston, MO

Customer care

Mon–Fri: 8AM–5PM
Email: GregAdams@gregstuningoperation.com
Phone: (573) 718-8733

© 2026, Greg's Tuning Operation - Powered by Shopify

Payment methods

Your cart

Your cart is empty