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What type of plug is best?

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Old

Mar 16, 2003 | 11:04 PM

#1

Thread Starter

Senior Member

Joined: Jan 2001

Posts: 532

Likes: 0

From: Canada

Car: 1992 GTA

Engine: running

Transmission: working

Axle/Gears: both

What type of plug is best?

Hi, al
well i guess i will ask this question here: has any one run these
bosch +4 spark plugs part #4449 for a tpi engine and if so have they made a noticible inprovement in perf?? They are a lot of money and was wondering if they were worth it ? later GTA.......

Old

Mar 16, 2003 | 11:10 PM

#2

Junior Member

Joined: Oct 2002

Posts: 54

Likes: 0

From: North Dakota

bosch plugs are junk, fancy plugs like that don't make any real noticeable difference in any car I've seen, just go with AC Delco's

Old

Mar 17, 2003 | 05:34 AM

#3

TGO Supporter

Joined: Aug 1999

Posts: 14,811

Likes: 1

From: Jackson County

plain old ac delcos, unless you find a plug that's free and installs itself

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