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2013-14 Shelby GT500
02 sensor - tune question?
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<blockquote data-quote="Myfast70" data-source="post: 13190736" data-attributes="member: 136812"><p>Factory cats are placed in specific locations in order to work properly. They are typically closer to the manifolds so they heat up properly to be able to control the exhaust emissions. The further away you place them the less effective they become. If you were to relocate the stock ones I would literally butt them up to the header flanges. </p><p></p><p>The next issue that you may run into is that the o2 sensor wires may not be long enough. It seems that extensions are a big no no. I would think that if you were to properly extend the o2 sensor wires by cutting them and then soldering a minimal extension on that you'd be ok. I would be certain to use the exact same size wire and solder and heat shrink (use an OEM type heat shrink that is wax filled to keep water and moisture out) every connection. You can find the connectors for o2 sensors online so I would probably buy new ones to minimize the amount of solder joints. Be sure to use a good OE grade TXL wire and not the normal "primary wire" that you find at auto parts stores. </p><p></p><p>I've built lots of complete wiring harnesses for FAST XFI and FAST Classic systems and the parts are available but you have to do some searching. Shoot me a pm if you need a source for wire or connectors.</p></blockquote><p></p>
[QUOTE="Myfast70, post: 13190736, member: 136812"] Factory cats are placed in specific locations in order to work properly. They are typically closer to the manifolds so they heat up properly to be able to control the exhaust emissions. The further away you place them the less effective they become. If you were to relocate the stock ones I would literally butt them up to the header flanges. The next issue that you may run into is that the o2 sensor wires may not be long enough. It seems that extensions are a big no no. I would think that if you were to properly extend the o2 sensor wires by cutting them and then soldering a minimal extension on that you'd be ok. I would be certain to use the exact same size wire and solder and heat shrink (use an OEM type heat shrink that is wax filled to keep water and moisture out) every connection. You can find the connectors for o2 sensors online so I would probably buy new ones to minimize the amount of solder joints. Be sure to use a good OE grade TXL wire and not the normal "primary wire" that you find at auto parts stores. I've built lots of complete wiring harnesses for FAST XFI and FAST Classic systems and the parts are available but you have to do some searching. Shoot me a pm if you need a source for wire or connectors. [/QUOTE]
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2013-14 Shelby GT500
02 sensor - tune question?
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