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Old 12-19-2006, 10:18 PM   #1
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Boxster on dyno

Here's a short video of my car on the dyno this past weekend. I was suprised by the power I am getting with only a custom exhaust mod. I'm looking forward to the intake and GIAC mod hopefully coming for Christmas.

239.87 HP at the wheels.

http://www.emeraldcitycustoms.com/videos/david_dyno.wmv

-David
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19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop

http://www.emeraldcitycustoms.com/images/box2.jpg

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Old 12-20-2006, 12:02 AM   #2
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Nice! Too bad you captured sound on the wrong side Can you post the charts?

-David
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Old 12-20-2006, 02:20 AM   #3
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David
Nice numbers ...Congrats
Can you give us some more informations , about this exhaust !
Its only the mufflers , or complete system with headers etc ?
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Old 12-20-2006, 06:15 AM   #4
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Very cool video! Numbers look really good! I would have to reiterate Takis' question on the mods. Which ones did you have installed? Could you show us some pics? I may have missed it if you already posted it elsewhere. If this was the case, could you direct me to a link(s)?

Thanks.
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Old 12-20-2006, 07:22 AM   #5
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Post some pics of your exhaust. It is a real cool idea that your guy fabed up and it should be the way the car was stock.

BTW I will need his contact info.
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Old 12-20-2006, 08:46 AM   #6
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Here's a picture of the exhaust



It's a single Magnaflow muffler connected directly to the factory headers. So it's the same as buying the cat-bypas pipes and an aftermarket muffler for less than half the price. I could not be happier with the HP gains and the sound coming out of it.

I would have recording the video from the back end, but I wanted to be able to see the numbers when I zoomed in. I will try to get some good sounds clips over the next week or so.

Josh, I will hook you up with the guys info. He is about 2 miles away from my house.

Those scratches on the bumper are from one on my spins at an autocross event. Spun out and nailed a cone. Man, those cones can do some damage. You should see the dent on the side of my car from a cone.

-David
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1996 993TT - current

2001 Boxster S (sold)
19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop

http://www.emeraldcitycustoms.com/images/box2.jpg

1986 Carrera (sold)
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Old 12-20-2006, 08:55 AM   #7
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Sure you p-Shop out your lic plate but on 6speed you keep mine up?????

Some guys!
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Last edited by JP-s-in st. louis; 12-21-2006 at 06:03 AM.
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Old 12-20-2006, 09:01 AM   #8
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You must be crazy, I did the same on yours.

Ok, I guess I was tired when I posted the pictures last night. It's been fixed now.
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1996 993TT - current

2001 Boxster S (sold)
19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop

http://www.emeraldcitycustoms.com/images/box2.jpg

1986 Carrera (sold)
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Old 12-20-2006, 11:04 AM   #9
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Thanks David...
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Old 12-20-2006, 11:37 AM   #10
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David J

What is the total cost and the approximate weight savings?

Jeff
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Old 12-20-2006, 11:38 AM   #11
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@ David,

That's pretty neat,I didn't know they built it from the headers back.
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Old 12-20-2006, 02:44 PM   #12
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I spent $680 before tax on the entire exhaust including labor. I'm not sure of the exact weight loss, but it's a lot. Going from the stock heavy muffler and 2nd cats to a small single muffler with the pipes has got to be a lot for a mod like this.

This past weekend Josh and I discovered a small different between his 2000 S and my 2001 S. His 2nd cats have an O2 sensor after the cat, when mine did not. Mine only has an O2 sensor before the 1st cat, and then one right after it, all on the header. Everything I did to the exhaust was after all O2 sensors.

-David
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1996 993TT - current

2001 Boxster S (sold)
19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop

http://www.emeraldcitycustoms.com/images/box2.jpg

1986 Carrera (sold)
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Old 12-20-2006, 04:57 PM   #13
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David_J, how much do they charge for a dyno-run? Thanks.
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Old 12-20-2006, 05:02 PM   #14
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3 runs cost $100. Another place around here charges $145 for 6 runs.
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1996 993TT - current

2001 Boxster S (sold)
19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop

http://www.emeraldcitycustoms.com/images/box2.jpg

1986 Carrera (sold)
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Old 12-20-2006, 05:06 PM   #15
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what kind of dyno is the other and who has it?
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Old 12-20-2006, 05:30 PM   #16
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They have both a Mustang and a DynoJet. I will PM you the info.

-David
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1996 993TT - current

2001 Boxster S (sold)
19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop

http://www.emeraldcitycustoms.com/images/box2.jpg

1986 Carrera (sold)
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Old 12-20-2006, 07:53 PM   #17
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Quote:
Originally Posted by David_J
I spent $680 before tax on the entire exhaust including labor. I'm not sure of the exact weight loss, but it's a lot. Going from the stock heavy muffler and 2nd cats to a small single muffler with the pipes has got to be a lot for a mod like this.
If the weight savings interest you, you should also maybe be interested in learning about how this has affected your weight distribution, eh? Wonder if the car handles any differently now.
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Old 12-20-2006, 08:32 PM   #18
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I'm sure it changed it a little, but nothing that I can tell. It should be no different than when I pull the spare tire out up front for an autocross event. When I put in new seats, that will also reduce weight and change the distribution.

I guess there are many things that can change the weight distribution, but that is fine. If you calculate how much 20-30lbs changes it, it's not much.

-David
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1996 993TT - current

2001 Boxster S (sold)
19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop

http://www.emeraldcitycustoms.com/images/box2.jpg

1986 Carrera (sold)

Last edited by David_J; 12-20-2006 at 08:35 PM.
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Old 12-21-2006, 09:40 AM   #19
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That's pretty much what I was getting at. People like to ask about weight savings and all that stuff, but if it's not a change along the lines of 100 pounds or more, the weight savings are pretty unnoticeable.
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Old 12-21-2006, 01:38 PM   #20
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The weight loss from the exhaust makes up for what I've gained this year by eating too much.
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1996 993TT - current

2001 Boxster S (sold)
19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop

http://www.emeraldcitycustoms.com/images/box2.jpg

1986 Carrera (sold)
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