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Granatelli Motor Sports Spark Plug Wires

4.82 out of 5 stars 56 Customer Reviews

Granatelli spark plug wires utilize an exclusive solid stainless connector cable with stainless snap-lock spark plug connectors and a patented EMI/RFI protection ri
Granatelli spark plug wires utilize an exclusive solid stainless connector cable with stainless snap-lock spark plug connectors and a patented EMI/RFI protection ring. This helps them exhibit near 0 ohm resistance, with RFI/EMI outputs less than OE. These kits increase power to the spark plug by up to 25 percent over stock, and their high-temperature silicone boots resist temperatures of up to 500 degrees F. They're ideal for use with aftermarket headers and turbocharger systems, and installation is as easy as changing the factory units. The assembled wires are engineered to exceed OEM specifications and to be OBD-II
Granatelli spark plug wires utilize an exclusive solid stainless connector cable with stainless snap-lock spark plug connectors and a patented EMI/RFI protection ring. This helps them exhibit near 0 ohm resistance, with RFI/EMI outputs less than OE. These kits increase power to the spark plug by up to 25 percent over stock, and their high-temperature silicone boots resist temperatures of up to 500 degrees F. They're ideal for use with aftermarket headers and turbocharger systems, and installation is as easy as changing the factory units. The assembled wires are engineered to exceed OEM specifications and to be OBD-II computer safe. Order the set designed for your vehicle application.

Results 1 - 25 of 57

Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Red Wires, 8.00mm Diameter, 10 in. Length, Cadillac, Chevrolet, GMC, Hummer, V8, Set

Part Number: GRN-28-1545-HTR

4.83 out of 5 stars ( 12 )

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Spark Plug Wire Sets, Assembled, Solid Core, Black, 8.00mm Diameter, Cadillac, Chevrolet, GMC, 6.2L Gen V, Set

Part Number: GRN-28-1545HTB

5.0 out of 5 stars ( 1 )

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Red Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1629-HTR

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, 6.2L Gen V, Set

Part Number: GRN-28-1545HTBLB

3.0 out of 5 stars ( 2 )

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Spark Plug Wire, Solid Core, Black Stock Boots, LS1, LS6, LT Series, Set

Part Number: GRN-28-1545HTBB

5.0 out of 5 stars ( 1 )

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Spark Plug Wires, High Performance, 8mm, Red Wires, Black Fire Sleeves, Cadillac, Chevy, GMC, Each

Part Number: GRN-28-5362HTRB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 13, 2026 if ordered today

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Estimated Ship Date: Jan 13, 2026 if ordered today

Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, 6.2L Gen V, Set

Part Number: GRN-28-1545HTBL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Spark Plug Wires, High Performance, 8mm, Yellow Wires, Black Fire Sleeves, Cadillac, Chevy, GMC, Each

Part Number: GRN-28-5362HTYB

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Estimated Ship Date: Jan 13, 2026 if ordered today

Spark Plug Wire Sets, Assembled, Solid Core, Black, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1629HTL

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wires, High Performance, 8mm, Red Wires, Black Fire Sleeves, Cadillac, Chevy, GMC, Set

Part Number: GRN-28-5362HTR

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Red Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, 6.2L Gen V, Set

Part Number: GRN-28-1545S-R

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1629HTBL

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Red Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1629S-R

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wires, 8mm, Blue, OEM Boots, Chevy, Small Block, LS2, Set

Part Number: GRN-28-1811S

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1629HTBB

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Yellow Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, 6.2L Gen V, Set

Part Number: GRN-28-1545-HTYB

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Red Wires, 8.00mm Diameter, Avanti, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1811S-R

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Jeep, Set

Part Number: GRN-28-1573S

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1629HTBLB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Yellow Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, 6.2L Gen V, Set

Part Number: GRN-28-1545-HTY

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Chevrolet, GMC, Isuzu, L4, Set

Part Number: GRN-24-1092S

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Chevrolet, GMC, Isuzu, 2.2L, Set

Part Number: GRN-24-1070S

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Chevrolet, GMC, 7.4L, Set

Part Number: GRN-28-1350S

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Chevrolet, GMC, V8, Set

Part Number: GRN-28-1347S

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Blue Wires, 8.00mm Diameter, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, V8, Set

Part Number: GRN-28-1574S

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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