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Accel HP Copper Spark Plugs; 4-Pack (97-03 Corvette C5)Find parts that fit my vehicle
Item CV22714
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53 Reviews
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$22.99
Ship to: 07076
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Product Information
Description, Reviews, Q&A
Description
ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
Fitment:
- 1997 Chevrolet Corvette
- 1998 Chevrolet Corvette
- 1999 Chevrolet Corvette
- 2000 Chevrolet Corvette
- 2001 Chevrolet Corvette
- 2002 Chevrolet Corvette
- 2003 Chevrolet Corvette
Accel 0526-4
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
4.9
Customer Reviews (53)
Mar 15, 2025
Review shared from Accel HP Copper Spark Plug; 1 Range Colder (11-25 Mustang GT, Dark Horse)
2019 GT -
Installation Time: Less than 1 Hour
2019 GT E85
Gapped these to .052 my car is tuned on E 85 headers full exhaust intake and it ran worse with the plugs , back fires after WOT so Ended up putting back new factory plugs and ran great.
Fit 5/5
Quality 3/5
Bang For Your Buck 3/5
Jan 13, 2025
Review shared from Accel HP Copper Spark Plugs (94-04 Mustang Cobra; 97-03 Mustang GT)
1998 Cobra - KenBo711
Installation Time: Less than 1 Hour
Definitely noticeable difference
My new go to plug. ??????????......................
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Nov 30, 2024
Review shared from Accel HP Copper Spark Plug; 1 Range Colder (11-25 Mustang GT, Dark Horse)
2012 GT - JoeedmundsGT
Installation Time: Afternoon
Fantastic plugs!
Great quality and easy to install. Not pre-gaped. S197 runs so much better!
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Oct 13, 2024
Review shared from Accel HP Copper Spark Plugs; 2 Ranges Colder; 4-Pack (15-25 Mustang EcoBoost)
2018 EcoBoost - Matthewcockrill
Installation Time: Less than 1 Hour
Great plugs
These plugs work great my car actually started to idle better after installing them I highly recommend you try them out I put them in a 2018 mustang EcoBoost.
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Apr 30, 2024
Review shared from Accel HP Copper Spark Plug; 1 Range Colder (11-25 Mustang GT, Dark Horse)
2020 GT - Jero5SLOW
Installation Time: Less than 1 Hour
Good bang for your buck!
Installation went flawless (YouTube helped) other than that spark plugs really woke up the car again runs so much smoother,better acceleration response even sounds a bit louder than before overall great product would definitely recommend
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Apr 7, 2024
Review shared from Accel HP Copper Spark Plugs; 1 Range Colder; 8-Pack (05-08 Mustang GT)
2006 GT - Ghost6661
Installation Time: Less than 1 Hour
Really woke up my car
Replaced my old oem plugs with these and noticed a immediate difference, starts faster, idles smoother, more responsive, less unburned carbon out the exhaust.
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Mar 19, 2024
Review shared from Accel HP Copper Spark Plugs (94-04 Mustang Cobra; 97-03 Mustang GT)
1998 GT - Boxturtle
Installation Time: Less than 1 Hour
Good install
Not as difficult or time consuming as I thought. just have the right tools and you'll be fine. first time doing spark plugs + no issues.
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Feb 11, 2024
Review shared from Accel HP Copper Spark Plugs; 1 Range Colder; 8-Pack (05-08 Mustang GT)
2006 GT - Zachary_Bishir
Installation Time: Less than 1 Hour
Amazing retrofit
Love these spark plugs, instillation sucked due to old two piece spark plugs but these ones so far are working amazingly
Fit 5/5
Quality 4/5
Bang For Your Buck 4/5
Oct 24, 2023
Review shared from Accel HP Copper Spark Plugs (94-04 Mustang Cobra; 97-03 Mustang GT)
1999 GT - KenThomas
Installation Time: Less than 1 Hour
Accel HP copper spark plugs
Easy to install. Noticed performance improvements immediately.
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Aug 10, 2023
Review shared from Accel HP Copper Spark Plugs (94-04 Mustang Cobra; 97-03 Mustang GT)
Mustangfan76
Installation Time: Less than 1 Hour
Accel plugs
Definite improvement! I don’t drive the car much,so I am not bothered they supposedly don’t last as long as platinum plugs.
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
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