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Hytech piping size question

Old 04-18-2010, 03:22 AM
  #1  
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Default Hytech piping size question

Hi

Im new here on the forum
And also kinda new of all that car tuning stuff.

I have a question though.
The collectors on the hytech header long tube are 2.5" but is that the Inner diameter? Or is 2.5" the outer diameter of the pipe?

I was told that its not good to have a bottle neck in the exhaust system. Why not?

My skunk2 megapower is closer to 2.25" inner dia. And 2.36" outer.
So I was wondering if I should get it exchanged with the skunk2 megapower R wich has 70mm piping/2.75" outer. That will be very close to 2.5" Inner diameter.

Sorry for my english it might not be the best, Im from Denmark I hope you understand my question.

Best regards Rasmus
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Old 04-18-2010, 05:12 AM
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Default Re: Hytech piping size question

2.5" OD
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Old 04-18-2010, 06:00 AM
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Default Re: Hytech piping size question

Kronn: Thanks alot

What about that bottle neck from header 2.5" - 2.36" Is it really bad? Or are we talking about maybe 1-2hp difference
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Old 04-18-2010, 03:30 PM
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Default Re: Hytech piping size question

It's bad. Don't do it.
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