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The BP9EV plug is for higher compression race engines that should have a colder spark plug. The engineers explain that it has to do with flame temperature and overheating the plug. I know from experience that my race engine will melt a street plug! Choose from the following NGK plugs: -Cold Street=BP7ES -Colder Street=BP8ES -Cold Race=BP9EV -Coldest Race=BP10EV
Ngk Race Plug Platinum High Performance Mini Cooper S

Ngk Race Plug Platinum High Performance Mini Cooper S

Ngk Race Plug Platinum High Performance Mini Cooper S

Ngk Race Plug Platinum High Performance Mini Cooper S

Ngk Race Plug Platinum High Performance Mini Cooper S
Alternate Products
Austin Mini Ngk Spark Plug 9 Heat Range
$5.30 Austin Mini Ngk Spark Plug 9 Heat Range
The BP9EV plug is for higher compression race engines that should have a colder spark plug. The engineers explain that it has to do with flame temperature and overheating the plug. I know from experience that my race engine will melt a street plug! Choose from the following NGK plugs: -Cold Street=BP7ES -Colder Street=BP8ES -Cold Race=BP9EV -Coldest Race=BP10EV
Recommended items for: BP9EV
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Related Technical Articles:
Spark Plugs Overview Classic Mini
Created: March 08, 2006
The following article was originally found on the NGK web site here. Spark plugs are one of the most misunderstood components of an engine. Numerous questions have surfaced over the years, leaving many people confused. This guide was designed to assist the technician, hobbyist, or race mechani...