actually just found this which i remember reading but din't know where or who wrote it..
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We suspect that because of the extremely close proximity of the downpipes to the back of the block, cylinders 4 and 8 were getting extremely hot. We wrapped the downpipes in DEI titanium wrap twice, and reassembled.
After further testing on the dyno, 90% of the smoking immediately went away, everything else left unchanged. We began wrapping the downpipes on all of the F10 cars cars we've put together since
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so i guess ima wrap my shit up , Thank's
Neil
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