997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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911tuning X exhaust( video)

Old Sep 12, 2013 | 09:27 PM
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Markski tuning X exhaust( video)

Came up with with unique version of our X exhaust trying to capture the GT3 tone- I think We are pretty close to it... let me know what you guys think...
best
markski




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2001 996TT 3.6L and stock ECU
9.66
seconds @ 147.76 mph 1/4 mile
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160 mph @ 9.77 seconds in 1/4 mile click to view
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Last edited by markski@markskituning; Apr 27, 2017 at 11:23 AM.
Old Sep 12, 2013 | 09:48 PM
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That sounds awesome! What version is on the car in the video?
 

Last edited by dm620; Sep 12, 2013 at 09:52 PM.
Old Sep 12, 2013 | 09:53 PM
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997.1 tt
 
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2001 996TT 3.6L and stock ECU
9.66
seconds @ 147.76 mph 1/4 mile
click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL




Old Sep 12, 2013 | 09:55 PM
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No which version of your exhaust?
 
Old Sep 13, 2013 | 12:06 AM
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custom muffler catless... as in pic...
 
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2001 996TT 3.6L and stock ECU
9.66
seconds @ 147.76 mph 1/4 mile
click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL




Old Sep 13, 2013 | 12:48 AM
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Have you measured the back pressure? I really like the looks of this exhaust, but I'm concerned that the X portion inhibits flow. It looks like the cross section of the X would not flow as much as the two 3" tubes flowing into it. Hope this doesn't come across wrong, just trying to learn. Sounds great by the way.
 
Old Sep 13, 2013 | 01:49 AM
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Sounds great Mark!
 
Old Sep 13, 2013 | 10:56 AM
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Originally Posted by dewilmoth
Have you measured the back pressure? I really like the looks of this exhaust, but I'm concerned that the X portion inhibits flow. It looks like the cross section of the X would not flow as much as the two 3" tubes flowing into it. Hope this doesn't come across wrong, just trying to learn. Sounds great by the way.
we made 871rwhp on our other 997, ran 140mph, etc... other 996s made 900whp plus, all that with the 4 muffler version. one of the 6speed members tested it on a A3076 set up against a straight pipe at 1.5 bar and he said it was 4 psi... Randy, another 6speed member ran record 60 to 130s on k16 billets as on Alpha28s... Im not rally worried about back pressure... you cant get this sound with the conventional muffler set up...
Best
markski
 
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2001 996TT 3.6L and stock ECU
9.66
seconds @ 147.76 mph 1/4 mile
click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL




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