I went to the local auto zone and asked for the NGK TR6's and they quickly informed me that they didn't have any. After going through the list of what they DID have I ended up buying the Autolite 103 plugs. I haven't installed the kit yet and I really didn't want to take a chance of messing things up. Please help, Thanks in advance.

 

not sure... but i do have a set of tr6s still in the box if you want them.. you could take yours back and buy mine.. just let me know.

 

If you have a pep boys by you, try that. That is where I got mine. They had a really hard time finding them. I think these auto parts stores give the plugs their own part numbers, so if you give them the TR6 part number they get confused.

 

yea, autozone cant look them up by tr6 or tr55s.. they just stand there and go "there is no such thing in this world"... and i have to restate my request again.. lol

again, i have some.

 

Napa or O'Reillys....O'Reillys was cheaper and it ended up only being $13 and some change.

 

I would also like to know if the 103's are a good plug. Another C6 owner said his car ran better on the 103's vs. the TR6's but I wanted to hear from others before trying the 103's. I have the TR6 plugs in the car right now.

 

If you want TR-6s I get mine from O'Rielly they have the best price down here in Louisiana. I know Advanced Auto carries them as well. You need to ask for them by Stock No. 4177. The people do not know TR-6 and cannot look up that number either.

 

You want to run TR6's, they will work fine with proper tuning up to 150 shot of gas.

 

Like stated above, use the part number TR6 4177. It helps them find it easier.

 

i have ran both and didn't notice a difference whatsoever. they are rated the same heat range . the tr6 is by far the most popular plug on HERE but autolite makes great plugs also so you couldn't go wrong either way. just put in the 103s, they will work great.