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Discussion Starter #1
Hello , i an changing my plugs from heat range 6 to 7 , currently using NGK irridium 2315 LZTR6AIX-13 moving to NGK -LTR7IX-11 6510 irridium . Can anyone confirm these are the correct fit plugs for the 6.1 hemi, Build info in sig. NGK has three different heat range seven plugs. Thanks
 

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Discussion Starter #6
May I ask why the change. I am thinking of going with your first choice.
My tuner (johan) recommended it at my boost level. Actually helped somewhat during summer driving. The car oil temperature stayed within more of a acceptable range during those long summer months in houston texas. (that'w with me beating on it at every red light).
 

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Supercharger swap

Would anyone know if a supercharger from a mid 90s Buick 4.3 fit a 2012 3.6 sxt? I'm not sure on brand of supercharger just yet but was hoping that I can get an idea if it's possible to happen ahead of time
 

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I put the 6510's on my Maggie blown 6.1 liter. Gapped at .032. Really pepped up the engine. Going Tuesday for q 90mm throttle body and a re tune. Should get some nice HP gain.
 
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