Donalsdson cobra head intake bens

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Originally Posted by patrol2.8

Will wait n see if there's any benefit from this mod first figure opening it up from around a 2in hole to a 3in has to be better than what it was

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There will be mate. It might not be hugely noticeable but any improvement on the factory setup is a positive.

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Originally Posted by nissannewby

There will be mate. It might not be hugely noticeable but any improvement on the factory setup is a positive.

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Yeah was a bit disappointed with the hole size in the lid also the original hole is off centre to the filter new hole is now in the middle of the filter don't know if it makes any difference just didn't seem right to me

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Originally Posted by patrol2.8

Yeah was a bit disappointed with the hole size in the lid also the original hole is off centre to the filter new hole is now in the middle of the filter don't know if it makes any difference just didn't seem right to me

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Yeah mate. Believe it it not the 4.2 boxes are basically the same for engine with much more capacity. So you can imagine how restricted they are.

oh well gives us something else to modify I guess

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Originally Posted by MudRunnerTD

How much was the cobra and where did you buy it? I need to do this to the GUIV.

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MudrunnerTD the part number for the 3 inch rubber bend is P547694 and you should be able to get it through any company that sells Donaldson products if you like I can give you the number where I purchased it from

Got my cobra on on fleabay for $38 from memory delivered...

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Originally Posted by mudski

Got my cobra on on fleabay for $38 from memory delivered...

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Mine was 38 but i had to add 10 bucks for postage did you notice much difference in the car once installed havnt been able to test mine yet

I have the 3ltr motor. So I did this mod with the hi flow maf housing. I noticed no improvement but now I can raise my boost levels far beyond before without getting limp mode.