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Old 11-11-2013, 08:47 AM   #1
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that would be the ultimate intake conversion then ...

987 air box - $250 used
987 engine cover - $100 used
996 3.4 intake manifold - $250 used
997 plenum - $50 new (you could use the 996 plenum, but one assumes the 997 part is an improvement)
996/997/987 throttle body - $100 used
987 maf housing - $100 jobber

$850.

get a softronic tune that let's you use a 987 maf housing - $700 on sale (or $50 labour at your local indy if a 996 3.4 x51 row pre-variocam+ tune will work).

finally, a $500 performance exhaust (topspeed or 987 S take-off) and a $200 underdrive pulley.

so, potentially 300 hp bolt-on (+50) for $1,600 to $2,250 - worth it?

Last edited by The Radium King; 11-11-2013 at 08:59 AM. Reason: oops - forgot fuel rails; add another $100.
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Old 11-18-2013, 06:57 PM   #2
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Quote:
Originally Posted by The Radium King View Post
that would be the ultimate intake conversion then ...

987 air box - $250 used
987 engine cover - $100 used
996 3.4 intake manifold - $250 used
997 plenum - $50 new (you could use the 996 plenum, but one assumes the 997 part is an improvement)
996/997/987 throttle body - $100 used
987 maf housing - $100 jobber

$850.

get a softronic tune that let's you use a 987 maf housing - $700 on sale (or $50 labour at your local indy if a 996 3.4 x51 row pre-variocam+ tune will work).

finally, a $500 performance exhaust (topspeed or 987 S take-off) and a $200 underdrive pulley.

so, potentially 300 hp bolt-on (+50) for $1,600 to $2,250 - worth it?
I tried to get softronic to give me a cayman MAF housing tune to no avail.
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Old 11-19-2016, 05:18 AM   #3
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Bump on this thread. I just switched motors back from a 3.4 to a 3.2 and I don't notice any real difference in power. I have a 3.4 intake, 987 air box,4 inch pulley, 996 ROW tune, headers and custom made exhaust. I question why Porsche even bothered with building a 3.4.
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Old 01-01-2017, 07:31 PM   #4
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Bump on this thread. I just switched motors back from a 3.4 to a 3.2 and I don't notice any real difference in power. I have a 3.4 intake, 987 air box,4 inch pulley, 996 ROW tune, headers and custom made exhaust. I question why Porsche even bothered with building a 3.4.
Wood,

Have you considered the Cayman intake plenums rather than 996s?
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