Header Choice

Correct me if I am wrong, but any header that removes the cat willnedd an o2 sim. Plus I have to agree what MP5Smuggler said about the Wagner Header gaining 8whp. That is no mild gain.
 
this may seem like a stupid question, but will the headers w/o the 1st cat (awr, obx, ractive) have more gains than the one with the 1st cat (wagner)?
 
Rogue Pro5 said:
this may seem like a stupid question, but will the headers w/o the 1st cat (awr, obx, ractive) have more gains than the one with the 1st cat (wagner)?

yes, but the more gains will void your warrenty
 
iluvmacs said:
In PA they take your ECU O2 sensor datalog for about a week of driving. Either you have to send fake signals that will pass to the ECU (MIL eliminator might not work for that), or you have to drive for a week with the old header before going in for inspection.
They do that here in Houston too. I have the OBX header and I relocated my second o2 sensor after the second cat and I passed just fine.
 
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