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#1
11-12-2013, 03:42 AM
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Sparkplugs?
What do you guys recommend for performance spark plugs? Any other little performance mods out there worth messing with? 
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#2
11-12-2013, 09:56 AM
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Spark plugs return no gain in performance. Just make sure to replace them every 100k miles.
How many miles on your X? Maybe differential fluid change and ATF too.
__________________
 00 E39 DINAN S1 //M5 (82k miles) 06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html 90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq 01 360 Novitec Spider F1 (26k miles)
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#3
11-12-2013, 10:22 AM
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you have a 4.4 right man?
I would just replace with OE NGK plugs, no performance gains but your motor will like fresh plugs if you are near 100k. Did mine on my M54 this summer (I have 70k now) and the plugs were definitely aged a bit after 10 years, she starts much nicer and idles a bit smoother, and no soft codes for misfires anymore either.
__________________
2018 Ram 2500 6.7L Cummins 68RFE 19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed 2013 X5 35D (CEO's) - Born on 5/17/2013 - 82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards
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#7
11-13-2013, 01:47 AM
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Quote:
__________________
Kirk Las Vegas 2016 X5 40e Mineral White/Black Dakota Leather, ZLL, ZCW, ZDA, ZDB, ZPP, multi contour seats, rear side window shades, HK stereo 2011 E90M3, 6-speed manual
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#8
11-13-2013, 06:05 AM
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You can replace them at 72K. That is plenty long enough. This is fairly straightforward on a 6cyl 3.0. On my Miata I replace them every 10K, but that is a different situation.
__________________
2003 X5 Sport w/Premium Package M54 3.0L 6cyl
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#9
11-13-2013, 10:14 AM
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Quote:
__________________
2018 Ram 2500 6.7L Cummins 68RFE 19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed 2013 X5 35D (CEO's) - Born on 5/17/2013 - 82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards
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#10
11-13-2013, 10:26 AM
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Quote:
 Did mine this summer at 120k (dealer was suppose to change them during my last inspection II....jokes on me apparently  )....anyways, you could definitely notice an improvement in idle smoothness and responsiveness.
__________________
2004 X5 3.0i Mod list: Currently Longer than the maximum allowed characters that can be typed here... 
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