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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 03-05-2003, 08:15 PM
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Adam12Hicks Adam12Hicks is offline
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Mein Auto: 06 Sapph Blk M Roadster
You guys hear about the S54 euro header upgrade?

Over on the road - toadfly board, someone posted dyno numbers of right at 300hp at the rear wheels after a $1k header replacement and $2k in cats. About a 30hp gain. He said that he could have even saved quite a bit on the cats had he done it differently.

Not sure of the details, but sounds pretty intriguing, would certainly negate the costs of the cam kit fiasco, and might be better than the diff swap (or awesome with it!)

Not sure what this does to state inspections, and whether or not it moves the cats too far back.

Just thought I'd plant a bug.
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Old 03-05-2003, 08:43 PM
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Speaking of S54 power upgrades, what is the story with this intake?

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Old 03-05-2003, 11:15 PM
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Old 03-05-2003, 11:18 PM
chazzy chazzy is offline
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I don't know, but I'll bet that it has a BMW part number and it's very expensive. So ... who's gonna be first?
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Old 03-06-2003, 07:06 AM
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Anyone have details on this? (the CSL intake)

Last edited by DannO; 03-06-2003 at 08:58 AM.
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Old 03-06-2003, 07:14 AM
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///M Rakete ///M Rakete is offline
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Re: You guys hear about the S54 euro header upgrade?

Quote:
Originally posted by Adam12Hicks
Not sure what this does to state inspections, and whether or not it moves the cats too far back.
It should still pass the tailpipe test at operating temperature. It will fail cold startup but I doubt any state requires such a test.

It will fail the visual inspection but...

There will still be cats, non of the changes are visible from above, and even if looking from below will the person performing the inspection know the difference? Probably not unless he's seen one before and remembers it or he has detailed information, i.e. diagrams/drawings, with which to compare.

Perhaps pricey but interesting.

Having said all of that the real issue is that touching the engine in any way likely makes that 60/100,000 warranty insert we all got worthless. The differential swap avoids this.
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