My Mac 4 into two

[Dan Tyson]

Not had a problem, and we're just at the end of the second summer with them on. And bear in mind that the lines don't do the cooling anyway, it's the cooler that does the work, the radiator.

[excess.11]

Stralya......
Seems to me the idea of an oil cooler is to cool the oil..........mmmmmmmmmm.....i think the rear positioning and close proximity to the headers will provide a fast warm up in winter and an overheated motor in summer.
The oil lines seem too close and will be copping all the heat from the headers .
As they say.....just my 2 cents worth.......

[Dan Tyson]

I've seen articles hereabouts about the fitting of the MAC Performance four into two exhaust system. I've noted that everyone that has fitted a set seems to have crossed over the oil cooler lines in order to make the system fit. I didn't. I just bolted them on as is without altering anything and have had no problems whatsoever.



As you can see, the oil cooler lines sit pretty close to the pipes but not so close that there are any problems.

Dan.