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SVT Shelby GT500
2009 Spark plugs for 2.5" pulley
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<blockquote data-quote="RedVenom48" data-source="post: 15831903" data-attributes="member: 166576"><p>You can run the smaller pulley with no tune, but you wont take as much advantage of the extra air flow. Tune will get the most out of the increase air, even a cat tune. The tunes for pulley swaps have been pretty ironed out for our cars for the last few years. ITs when you get to bigger blowers that you NEED a new tune. *edit* if you get a larger intake system, a tune is MANDATORY. Your car will not run right, AT ALL without one.</p><p></p><p>Been running NGK TR7ix's almost since I bought my car. TR6 is a great plug, but will wear faster than the Iridium TR7ix. I still swap mine out yearly, mainly because its inexpensive to do so and a fresh plug is a happy plug. I usually keep the plugs that come out in case I need one in a pinch. Realistically, a set of iridium plugs should go at least 30k in our applications. #racecar <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="RedVenom48, post: 15831903, member: 166576"] You can run the smaller pulley with no tune, but you wont take as much advantage of the extra air flow. Tune will get the most out of the increase air, even a cat tune. The tunes for pulley swaps have been pretty ironed out for our cars for the last few years. ITs when you get to bigger blowers that you NEED a new tune. *edit* if you get a larger intake system, a tune is MANDATORY. Your car will not run right, AT ALL without one. Been running NGK TR7ix's almost since I bought my car. TR6 is a great plug, but will wear faster than the Iridium TR7ix. I still swap mine out yearly, mainly because its inexpensive to do so and a fresh plug is a happy plug. I usually keep the plugs that come out in case I need one in a pinch. Realistically, a set of iridium plugs should go at least 30k in our applications. #racecar :D [/QUOTE]
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SVT Shelby GT500
2009 Spark plugs for 2.5" pulley
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