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Old 10-10-2010, 09:30 PM   #1
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F2 Flex Issue

I have this funny feeling that my f2 header has one of the lemon flex pipes. I was wondering if anyone else is in the same boat as i am. If so what did you do or what other ideas are there that i can do to fix this issue. Can i get one from another header company and hope it lines up or am i going to have to buy a whole new setup. I like the obx one but its pretty pricey and only has one o2 sensor port. I have three o2s and my tune only turns off the fartherst one downwards. Any ideas fella's?

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Old 10-10-2010, 10:31 PM   #2
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I got sick of my F2 header always blowing out collector gaskets. My solution was "extreme" but made all my problems go away permanently.

I yanked the header and brought it to a shop that does alot of turbo/exhaust fabrication.

They cut off the stock 2-bolt flange from the header and replaced it with a "v-Band" flange like they use on turbo builds.

Then we just welded a new "flexible" flex section onto the exhaust.

I guess if you kept the stock flanges, you could just bring your crappy F2 flex section to someone and have them duplicate that little flex section using a better flex pipe.
213 whp / 160 wtq D23 NA with stock intake and TB.

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