Bosch platinum +4 spark plugs
Thread Starter
Instructor
Joined: Sep 2001
Posts: 222
Likes: 1
From: ann arbor michigan
Bosch platinum +4 spark plugs
Has anybody tried these plugs? Are they worth the extra dollars? Has there been any problems with the +4 design. (I was told that the coil pack requires an extra ground!!)
Drifting
Joined: May 2003
Posts: 1,715
Likes: 1
From: cAshburn VA
Been using them for 3 years now, zero issues, no extra ground. Definately an upgrade from stock. As I have only used the stock ones and these, I can't speak as to how they compare to other plugs.
Went with these at the suggestion of my local vette guys, never looked back.
Went with these at the suggestion of my local vette guys, never looked back.
Originally Posted by duosy
Has anybody tried these plugs? Are they worth the extra dollars? Has there been any problems with the +4 design. (I was told that the coil pack requires an extra ground!!)
Supporting Tuner
Joined: Sep 2004
Posts: 51,896
Likes: 39
From: ================== Houston, Texas www.englandgreen.com ================== Necessary Evil™ __________
CI 6-7-8-9-10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14
Originally Posted by IFLUBYU
Been using them for 3 years now, zero issues, no extra ground. Definately an upgrade from stock. As I have only used the stock ones and these, I can't speak as to how they compare to other plugs.
Same here.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Bosch platinum +4 spark plugs
At first I didn't believe the guy. But after swapping in the Iridiums - and still using the stock wires - the engine ran better and smoother that when it was new.
And that may have been my problem, I continued using the factory wires with the Bosch +4. But the Iridium plugs worked perfectly - with my factory wires.
For what it's worth....
Le Mans Master
Joined: Nov 2000
Posts: 6,266
Likes: 156
From: Galloway Twp. NJ
Cruise-In VII Veteran
Originally Posted by vetterdstr
no difference... spend your money on apperance mods... 
VR
VR
not worth the money, it's just a marketing gimmick.
I'm using NGK TR-55's
they only cost about $13.00 for a set of 8!
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From: Redsox, Pats, Celts & Bruins !!! Redsox Nation !!!
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
Originally Posted by Mike Mercury
how many here have used the +4's with factory plug wires on the LS1/LS6 ?
I'm trying to get a handle on the problems I had.
I'm trying to get a handle on the problems I had.
Premium Supporting Vendor
Joined: Aug 2001
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From: King George VA
These plugs aren't recommended for the LS6 so I've never used them and can't offer any solid input one way or another. But as an FYI, you can buy them via the AMSOIL Online Store.
C5 part number is B4458.
Sales via my and MrPickles AMSOIL Dealerships benefit the forum. Thanks.
C5 part number is B4458.
Sales via my and MrPickles AMSOIL Dealerships benefit the forum. Thanks.
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AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
Racer
Joined: Sep 2004
Posts: 324
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From: Rogersville TN
Originally Posted by Mike Mercury
how many here have used the +4's with factory plug wires on the LS1/LS6 ?
I'm trying to get a handle on the problems I had.
I'm trying to get a handle on the problems I had.
Heel & Toe
Joined: Sep 2004
Posts: 21
Likes: 0
After reading about 8 hours worth of posts on the pros and cons of the +4, and decided to try them with new wires. I didnt notice any gains but my car ran better......but that was due to the fact that one of the wires was not working well. In the end...no gain...but no problems.
Drifting
Joined: May 2003
Posts: 1,715
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From: cAshburn VA
Originally Posted by Mike Mercury
how many here have used the +4's with factory plug wires on the LS1/LS6 ?
I'm trying to get a handle on the problems I had.
I'm trying to get a handle on the problems I had.
Melting Slicks
Joined: Dec 2003
Posts: 2,857
Likes: 2
From: pawleys island sc
[QUOTE=Mike Mercury]how many here have used the +4's with factory plug wires on the LS1/LS6 ?
I'm trying to get a handle on the problems I had.[/QUOTE
been running stock wires from day one, never had a problem with the plugs.
I'm trying to get a handle on the problems I had.[/QUOTE
been running stock wires from day one, never had a problem with the plugs.
