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This is why you wrap the overpipe, a thin layer of paint does nothing IRT radiant heat.
Same for the header, this is why a decat OEM header works so well, it has its OEM heat sheilding and with the cat removed flows extremely well.
The OEM header also has larger primaries than most cheap aftermarket headers and is actually designed quite well.
The only header I would look at is the SME EL or the ACE header. But you will pay for the privilege, upwards of 1.5k.
Be aware not all headers will fit our RHD cars.
The header choice is the most important bolt on part when it comes to NA performance, but, you can piss money away very easily for little to no gain.
With a oem decat and a tuner who knows what he is doing you will make much more power than and expensive header and a sub par tune.
These cars are strangled with emmisions hardware and the oem tune.
I am also in Sydney.
Click on the link in my sig to see how I skinned this particular cat....
Opinions may vary
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