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Old 03-26-2007, 11:11 AM   #1
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Instant-G Boxster Headers

has anybody heard, seen or have these headers??

http://www.instant-g.com/Products/Exhausts/Box34/index.html

Thanks
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Old 03-26-2007, 11:42 AM   #2
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Looks like they took the easy way out with the 3 into 1 design they used on that header.
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Old 03-26-2007, 01:38 PM   #3
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How so, CJ?
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Old 03-26-2007, 02:17 PM   #4
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with the way they are welded into the triangle shape collector. Traditionaly they arent welded 3 in a row side by side (OOO) into a collector, traditionally its done like this:

---_
-/O\
/O O\
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Old 03-27-2007, 04:42 AM   #5
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I think they did it that way to save space since the traditional way you have shown it occupies more space. I am very interested in this system but I don't know if it really make the car that much more faster. This people claim that the boxster S with their system and the GAIC chip can put out 300 at the crank!!! See to believe, I read a post on this forum about a guy who had Dansk header and cats and muffler and got barely to 275 at the crank which is good not not near 300. What do you guys think??
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Old 03-27-2007, 05:33 AM   #6
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Thumbs down

As an engineer who has designed high performance/race headers for many years, I conclude that that is a poor collector design...with the primary goal of conserving manufactoring costs. A true merge collector is the ticket, and that design is far from it.
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Old 03-27-2007, 05:42 AM   #7
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then how about this kit from Fabspeed: http://www.fabspeed.com/Boxster.html
I have heard that they get their stuff done in China (which is not necessary a bad thing but you wonder how good the quality of welding and materials they use over there). The headers that I would consider getting are the Dansk but they don't have the O2 sensor receptacles for the usa boxsters and i don't want to have any lights go off on my dashboard. Are there any other good set of headers with o2 sensor compatible??
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