Interesting...
Thanks for the input everyone.
To be honest though, if there's really little to no performance gain worth noting, I won't spend the money for them. Especially if blown gaskets are as common as it seems with them.
The only things I've done to this car is DC Sports CAI and removed the end mufflers. Gives a subtle/non-ricey exhaust note.
Just kinda sucks there's not many cost-effective applications for squeezing some good power out of the J30A1..
Headers do not effect head gaskets.