crucial makes NICE stuff... ive heard lots of good stuff about them. I have heard once or twice about leak issues, but they are overall good pipes

Dont blow 20 bucks on a cel fix, just do a search on nasioc

Theres a mechanical fix which involves drilling out a spark plug antifouler, it essentially moves your 02 sensor out of the gas stream without disabling it.

Theres also a electrical fix (what i did), its pretty easy, you take out the 02 sensor and wire in a resistor and a capacitor, directions can be found on nasioc. Then u just put the o2 sensor back and it sends a false reading to the ECU, tricks it out.

Either of these will cost you less than 5 dollars...