From what I have read, the flex joint is great to have as there is a little bit of play in the headers over bumps etc.

It is also prone to breaking due to the most frequent vibrations and movement.(from what I have read)

Edit. The grimmspeed ones have moved the flex joint to higher up. Most of the others I have seen on the market are in the middle... May be better?

I'm running the solid up-pipe that came with the Ultrex/Kando headers I purchased. That is wrapped and I haven't had a problem with it at all.

Have you upgraded to headers yet? If not, $300 for an up-pipe... $600 odd for some headers and up-pipe is definatley a worthwhile upgrade.

Best bang for buck torque and power mod.



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2005 WRX STI