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Discussion Starter #1
I have been looking into buying the tsudo exhaust system for my 05 accord coupe. I noticed while looking over the product that it included a test pipe. So my question about this is:
-Will i get any error code or check engine light if i install it?
-How much performance will i gain from this?
-My friend mentioned something about an O2 eliminator, so what does that do?

yes i do realize that the test pipe is illegal, but i live in Alabama where there are no emission tests and every redneck around here has straight pipes on his truck. So no worries on that part :p

Thanks in advance
 

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^ no. The sensors are upstream are by the precat. You won't see a CEL if you remove the 3rd cat. You might not pass inspection if your in CA. Everywhere else is okay.
 

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Mr. Detail
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There won't be a noticeable increase in performance unless your 3rd cat is clogging up. On a brand new car, you'd be lucky to see a 1 hp increase in power. At 100k miles? Could be 5-10 hp gain due to the cat deteriorating internally.
 
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