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Originally Posted by rule1
I have had these same headers on since the first of july and have still not had a CEL, on my 2000.
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How many miles ago was that?
This was from Maxspeed's ebay auction
http://cgi.ebay.com/ebaymotors/Porsche-Boxster-986-2-5L-2-7L-3-2L-Performance-HEADERS_W0QQcmdZViewItemQQcategoryZ33631QQihZ011QQ itemZ320148798294QQrdZ1QQsspagenameZWDVW
"Q- On the 2.7L & 3.2L will these headers trigger C.E.L (Check Engine Light)?
A- As mentionned above we have tested these headerson a 2002 2.7L Boxster and we had the C.E.L light came on 3 times always with the same code that has occured on a 3000 Mile testing , this is caused by the deletion of the primary cats, in return they are noticeable power gains and improved sound. So yes on the 2.7L and 3.2L the C.E.L will possibly come on.
Q-What can be done to resolve the C.E.L ?
A- Two things can be done, either you purchase a Scanner to erase the light when it comes on. Thats what I do I purchased a nice scanner online and its a great tool to have. Or you will need to relocate the 2nd O2 sensor right after the 2nd set of cats that also involves extending the wiring on the O2 sensors. This is the permanent solution. We can help you with this solution just ask we have the O2 weld sensor bungs to relocate.
Q- How much Hp/Torque Gains?
A- We will do our best to do a Dyno run soon we will post results as soon as we have then, we expect a 10-15HP gain with these headers, thats our opinion not a fact. "
Wow,those aren't the answers you want to hear about a product.