Quote:
Originally Posted by NickTurnon
2. Is a tune (up rev) necessary for the above set up and if so how much does it improve the system. --- A tune will be necessary if you make any changes to the CATS or Headers because a light will pop up on your dash. But really you should get a tune when all your mods, or any significant changes are made.
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Simply put you're wrong. The brand on of the HFC/Test Pipe/LTH will determine if the CEL will come on. Companies such as Fast Intentions spend a lot of time developing these so that the CEL won't come on. Typically it involves a "J-bend" to get the secondary O2 sensors out of the exhaust stream.
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'11 370Z Nismo #528 Fast Intentions | Stillen | Motordyne | Uprev | CSF | Zspeed | Z1 Motorsports | AST | Swift | SPC | SPL | Whiteline | Hotchkis | Bride | Schroth | Robispec | Cusco | Nismo | Volk | Forgestar | Hoosier | RJM
'17 Titan Bone Stock
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