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GM Performance

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18 Products

Holley Performance Products

In stock

AEM X-Series OBDII Wideband AFR Gauge Kit

Regular price $299.95
HP Tuners

In stock

PROLINK+ for MPVI2+, MPVI3, and MPVI4

Regular price $79.99
Fuel Injector Clinic

In stock

1200cc (130 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-1200h)

Regular price $1,077.00
Fuel Injector Clinic

In stock

1440cc (160 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, L76, L92, and L99 engines (High-Z) (is303-1440h)

Regular price $1,470.00
Fuel Injector Clinic

Out of stock

2150cc (240 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-2150h)

Regular price $1,786.00
Fuel Injector Clinic

In stock

1650cc (180 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, L76, L92, and L99 engines (High-Z) (is303-1650h)

Regular price $1,623.00
Fuel Injector Clinic

In stock

0660cc (72 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-0660h-sp)

Regular price $683.00
Fuel Injector Clinic

In stock

540cc (60 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-0540h)

Regular price $625.00
Fuel Injector Clinic

In stock

1200cc-D (130 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-1200h-d)

Regular price $1,077.00
Fuel Injector Clinic

In stock

850cc (94 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) Previously 770cc (is303-0850h)

Regular price $735.00
Fuel Injector Clinic

In stock

1000cc (100 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, L76, L92, and L99 engines (High-Z) (is303-1000h)

Regular price $924.00
Motion Raceworks

In stock

Billet E85 Flex Fuel Sensor Mount Dual Channel In Line (10AN) Sensor Not Included

Regular price $141.99
Motion Raceworks

In stock

Billet E85 Flex Fuel Sensor Mount Dual Channel In Line (8AN) Sensor Not Included

Regular price $141.99
Motion Raceworks

In stock

Billet Flex Fuel Sensor In Line Sensor Mount For Feed or Return (6AN) (Sensor not Included) Made in the USA!

Regular price $137.99
My Store

In stock

2019+ 6.2L Premium cam kit/DFM delete - Greg's Choice

Regular price $2,679.57
My Store

In stock

2019+ Truck 5.3L Cam/DFM delete kit - Premium

Regular price $2,667.32
Holley Performance Products

In stock

HOLLEY EFI TERMINATOR X MAX - LS1/LS6

Regular price $1,999.95
HP Tuners

In stock

MPVI4

Regular price $399.99

AEM X-Series OBDII Wideband AFR Gauge Kit

Regular price $299.95
PROLINK+ for MPVI2+, MPVI3, and MPVI4

Regular price $79.99
1200cc (130 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-1200h)

Regular price $1,077.00
1440cc (160 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, L76, L92, and L99 engines (High-Z) (is303-1440h)

Regular price $1,470.00
2150cc (240 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-2150h)

Regular price $1,786.00
1650cc (180 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, L76, L92, and L99 engines (High-Z) (is303-1650h)

Regular price $1,623.00
0660cc (72 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-0660h-sp)

Regular price $683.00
540cc (60 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-0540h)

Regular price $625.00
1200cc-D (130 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) (is303-1200h-d)

Regular price $1,077.00
850cc (94 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, LSA, L76, L92, and L99 engines (High-Z) Previously 770cc (is303-0850h)

Regular price $735.00
1000cc (100 lbs/hr at OE 58 PSI fuel pressure) FIC Fuel Injector Clinic Injector Set for LS3, LS7, L76, L92, and L99 engines (High-Z) (is303-1000h)

Regular price $924.00
Billet E85 Flex Fuel Sensor Mount Dual Channel In Line (10AN) Sensor Not Included

Regular price $141.99
Billet E85 Flex Fuel Sensor Mount Dual Channel In Line (8AN) Sensor Not Included

Regular price $141.99
Billet Flex Fuel Sensor In Line Sensor Mount For Feed or Return (6AN) (Sensor not Included) Made in the USA!

Regular price $137.99
2019+ 6.2L Premium cam kit/DFM delete - Greg's Choice

Regular price $2,679.57
2019+ Truck 5.3L Cam/DFM delete kit - Premium

Regular price $2,667.32
HOLLEY EFI TERMINATOR X MAX - LS1/LS6

Regular price $1,999.95
MPVI4

Regular price $399.99

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Greg's Tuning Operation

20075 US Hwy 61

Sikeston, MO

Customer care

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

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