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Only time you really need a tune of some sort is if you go for the larger 987 MAF tube.
Regarding headers I got lucky with the ebay headers, good fit! There is also a slight improvement in sound on high rpm.
You guys using studs instead of bolts, what studs are best/correct in the alu engine, stainless?
Last edited by Robert986; 10-18-2020 at 02:15 AM.
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