I've paid full price for worthless stuff lots of times. 
[Z06] MSD Coil Fit ??
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
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Team Owner
Joined: Dec 2008
Posts: 35,874
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From: Honolulu HI
They work or they don't. It's not an item thats going to have diminishing performance. Replacing old ones with new ones will do nothing, and there's plenty of other useful upgrades you can spend your hard earned money on. If you haven't spent the $ already there's no need to.
Spend the money on a set of GMPP performance plug wires and new plugs from Gene Culley, and have money left over. That may actually make a slight difference.
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Are you certain that your current (pun intended) coils are a cause of diminished performance?
I didn't think the MSD coils were physically larger than the oem (?). They should fit under your covers. If you're doing it for performance, then you can already see the issue from the replies and probably won't get much positive input.
If you're doing it for appearance, you can paint your oem coils and get almost the same effect. KRYLON worked for me...
I didn't think the MSD coils were physically larger than the oem (?). They should fit under your covers. If you're doing it for performance, then you can already see the issue from the replies and probably won't get much positive input.
If you're doing it for appearance, you can paint your oem coils and get almost the same effect. KRYLON worked for me...
