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Old 04-11-2010, 01:06 AM
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Incognito Incognito is offline
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Join Date: Oct 2009
Location: Canada
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Vehicle: 2003 Dodge Ram 1500 Crew Cab
Trim Level: 5.7L Hemi 4x4
Color: Graphite Gray
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
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Quote:
Originally Posted by drivehard27 View Post
for spark plugs i would go with the bosh-4 plugs i put them in my truck and it runs good have gotten about 1 mpg better but i think that is because there new there about 5.99 per plug
I honestly think anything with more than one electrode is a waste of money. With my GM experience I have never seen any gains other than extra money being spent at the retailer. But if it worked for you then you must be one of the lucky ones.

Quote:
Originally Posted by chefred112 View Post
I know you may like them but I know a few people that have run the bosch plats and have had issues with them (especially the performance modding crowd)...I did try those as well as iridiums, champ coppers...I now use ngks (5306's for stock an lightly modded, 4306's for the heavily modded trucks).. i have over 180k hard miles on my 05 an thats the only plug i'll use... and the only plug i tell the guys i do cam installs for to use as well
Bosch double and quad electrode plugs caused problems on several GM engines from the '90s, including the LT-1, LS1 and Northstar. I've never heard of anyone having issues with NGKs. I would recommend NGKs or just regular OEM.
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