Ha Ha just kidding what plugs are best, performance wise in
2.2l ecotec with cai and cat back.

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you might want to post this in the performance fourm.

The ones that fire a spark into the cylinder are the best . HaHa just kidding actually I heard that spark plugs from a Briggs & Straton lawnmower have the biggest HP yield . They netted an extra 25 HP over factory plugs and any other plug on the market . LOL


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Stock plugs work fine.

You need spark plugs for the engine to run, that might be your problem why its backfiring. Not sure though. If you dont have spark plugs the engine will run for maybe 10-15 minutes, but once it heats up to operating temperature it will start sputtering and backfiring in the exhaust. I would recommend honing out the cylinder walls to solve this problem.

i would go w/ ac delco. i saw a set when i was in autozone. i was going to pick them up but i was short on money. there usually next to the blinker fluid

I have AcDelco Rapid Fire #5, I got two for free but the other 2 were less than $10.


-Erin

The only AC delco plug available is the stock ones and those are the best plugs for it



1989 Turbo Trans Am #82, 2007 Cobalt SS G85

Eric Riddle wrote:You need spark plugs for the engine to run, that might be your problem why its backfiring. Not sure though. If you dont have spark plugs the engine will run for maybe 10-15 minutes, but once it heats up to operating temperature it will start sputtering and backfiring in the exhaust. I would recommend honing out the cylinder walls to solve this problem.

how can the engine run if it has no spark plugs...how would it even start...or maybe im just plain confuzzled





Not unintentionally accelerating since 2009!!!!

KandyMan...Das Deutsche. wrote:

Eric Riddle wrote:You need spark plugs for the engine to run, that might be your problem why its backfiring. Not sure though. If you dont have spark plugs the engine will run for maybe 10-15 minutes, but once it heats up to operating temperature it will start sputtering and backfiring in the exhaust. I would recommend honing out the cylinder walls to solve this problem.

how can the engine run if it has no spark plugs...how would it even start...or maybe im just plain confuzzled

It wont start without plugs. Dunno what the crap that dude is talking about lol.

he was tryin' to be funny but ended up owning himself