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|Center Electrode Core Material:||Copper Core|
|Center Electrode Tip Material:||Platinum|
|Electrode Core Material:||Platinum|
|Electrode Tip Material:||Platinum|
|Gap Size:||0.040 in|
|Ground Electrode Core Material:||Nickel Core|
|Ground Electrode Quantity:||1|
|Ground Electrode Tip Design:||Trapezoid|
|Ground Strap Quantity:||1|
|Manufacturer Heat Range:||6|
|Shorty Spark Plug:||No|
|Thread Diameter:||14 mm|
|Wrench Diameter:||13/16 in|
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Q:My car manual for my Porsche 944 S and My 89 944 turbo call for Bosch WR7DC a heat range of 7. My interest is in a Platinum or iridium Plug for my Turbo. All of your recommended plugs (NGK) are in the heat range of 6. As this is a boosted application I have a concern about detonation using the hotter 6 range plugs under boost, are u sure this is the correct heat range for my 844 T?
A:We do have the spark plug with the manufacturer heat range of 7 for your Porsche 944 S. Please check the Bosch Super Plus Copper Spark Plug (Part No. 7900) which would be the ideal part for your vehicle. For more alternate options I would recommend that you visit the nearest Advance Auto store and our representative would be glad to assist you with the right spark plug for your application.