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04 cts
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Got some great advise from replies from my previous post on plenum removal. Thanks to all. Only one recommendation on plugs though, from CTSM using a Denso. I was shocked to see Rockauto lists "BOSCH Part # 9617 More Info OE Fine Wire Iridium" as the OE plug for this motor. Can anyone confirm??? In my experience Bosh plugs DO NOT RUN WELL IN GM CARS!!!! Looking to do this job soon, summer is short in upstate NY!!! (I try to go with oem in most cases. Denso is listed on rockauto as a performance upgrade. I find in most cases OEM always seem to perform best)
 

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2006 3.6L CTS, Hotchkis Sway Bars, FE2
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526 Posts
Got some great advise from replies from my previous post on plenum removal. Thanks to all. Only one recommendation on plugs though, from CTSM using a Denso. I was shocked to see Rockauto lists "BOSCH Part # 9617 More Info OE Fine Wire Iridium" as the OE plug for this motor. Can anyone confirm??? In my experience Bosh plugs DO NOT RUN WELL IN GM CARS!!!! Looking to do this job soon, summer is short in upstate NY!!! (I try to go with oem in most cases. Denso is listed on rockauto as a performance upgrade. I find in most cases OEM always seem to perform best)
I use autolite double platinum. As long as they are double platinum you'll be fine.
 
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