10-22-2009, 02:22 PM
|
 |
Member
|
|
Join Date: Apr 2008
Location: Kirkland, WA to Alexandria, VA - Now in Marysville, WA
Posts: 4,001
|
|
Quote:
Originally Posted by FSETH
OK...I just called NGK's technical support. The rep. basically told me that the OEM NGK plugs, which are more expensive, will typically last 80k-100k miles and are laser platunim with 4 nickel grounds. The cheaper NON-OEM iridium plugs typical life is 40k-50k miles and have 1 ground.
He said that the iridiums will actually give a very slight performance advantage, but at the expense of a much shorter life.
So c4racer, you can buy those plugs from Amazon and save money now, but you will have to replace them twice as often. If you don't change them yourself, I would bet the cost to have them replaced negates any initial savings.
Hope this helps.
|
I realize the point your trying to make about the BMW ones vs Autozone off the shelf ones, but they're super easy to do as is, so you just put the nail in the coffin for me to keep going the route I've taken w/ my 7.
If I get more power and spend less money, then I'm in. For the price they're sold for at Autozone, I could do them 3x over before even touching the stock BMW price, and I doubt if I'll even have the X or 7 for another 150k anyways.
__________________
650hp 10 X5///M - Stage 2, Vibrant 1794's , gutted cats, custom intake, AC Forged 22's 325hp 98 BMW 740iL - ///M5 6spd, www.bavengine.com w/ Performance Option, electric fan, CF intake tube w/ heatshield, Mag 14816 w/ notched bumper, Bilstein/H&R Stage II/Powerflex 600+hp 02 Harley F150 - MHP900 Stage 3 engine, KB2.3, 8# lower, 60# inj, Walbro FP's
135hp 01 TL1000R - M4 full exhaust, K&N, Yosh box, -1/+2 gears, 2CT's
|