OEM plugs are NGK... they are the only ones that actually work. you can use copper over the platinums to save a few $$, but you'll be changing them more often. as for wires, the same, use OEM, I am and I have been running a stg III s/c kit...colder, but still NGKs, and BERU wires.
today I installed a NGK BK7RE to my jetta, and it feels great. I like them a lot, considdering I haven't change my stock sparks .
Spark Plugs (NGK) 7 heat range - OEM Honda Timing Belt, water Pump, oil pump, headgasket, and engine gasket set - Fuel filter - Valve Adjustment done by acura cost $175
the BKr7e's NEED to be switched out with every oil change (IMO).. The new plugs feel great and look great on vag logs (less timing pull than seasoned plugs)
I went to the dyno today and ended up with some pretty good #'s 321HP 304TQ Car was ran on SPS3 settings boost 9 timing 9 with Sunoco gt100 fuel. Temperature was mid 70's My car: 2003 A4 1.8t quattro ATP/Revo GTRS ATP Manifold Ecode Front Mount Intercooler Ecode Test Pipe Neuspeed Xtreme Turbo intake pipe Neuspeed Exhaust Stock airbox with K&N panel filter stock N75 valve working And NGK BKR7E plugs South Bend OFE SS clutch I could have done better if I had the right plugs (Bosch 3 electrode) and a manual boost controller but im pretty happy overall. Also the car was pulling 0 correction factors all the way through the rpm range so Lemmiwinks could have helped me with some more timing.
I run ngk bkr7e plugs gapped to .024 at 15psi. No probs here.
I have been runing the NGK BKR7E which is one step colder than stock (NGK Part# 6097) and I have a K04 with GIAC K04 software and other mods. They work great with a .028 gap. I change my plugs every 5K.
I just installed some of these NGK (BKR6E) plugs. I set the gap to .030 These went my 99 A4 1.8T Avant Quattro. The car is stock except for a K&N filter. Idle seems awesome and flawless all the way through the rev range.
I use them, but a colder plug, they work great.
Cooler plugs (NGK BP7ES) gapped first to .028, then to .025 have changed NOTHING.
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