Seems like it a choice between tuners...JDM has recommended HTO and Brenspeed has recommended the Brisk. I have the HTO plugs with 30,000+ miles. There are lots of guys that like the Brisk plugs (many are Brenspeed customers). I have just never tried them.
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Michael
'07-0449
S281 SC Coupe - 1 of 1 as optioned
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