I have a 01' mp3 and have to replace exhaust manifold gasket and was thinking since I have to pull it off anyway can I just go to a race header and if so All the one's have looked at all bypass the cat, but do have a place for both the maf sensor and o2 sensor will this be a huge mistake?
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EGR & 1 to 2 O2 sensor's should be found on the header- design dependant (if you had a pre cat)
there are 2 cat's on some of the FS models (take per instance the protege5)---Has ClubProtege helped you in someway? show your support by Contributing--- Click Here---
1992- project FE3..... 313 WHP @ 9.3psi
I pet my dash when I get into the car..."good car"he actually has a mazda tree, parts grow on it
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