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Stillen Headers on 370z

Originally Posted by RelentlessRY Ok as far as the gaskets I reused mine with no issues. Your In texas why not contact Uprev and have your rom dumped and tune

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Old 03-18-2009, 08:22 AM   #1 (permalink)
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Originally Posted by RelentlessRY View Post
Ok as far as the gaskets I reused mine with no issues.

Your In texas why not contact Uprev and have your rom dumped and tune your factory computer? We use uprev at my shop and until i am a sponsor i can not advertise prices on here.
I'm not at all familiar with how engine tuning goes on these cars other than what little I've read on this forum so far. What's the deal with the uprev? You buy their unit, log some data from it on some kind of standard drive, upload the data to them along with a description of your mods, and then download back a custom tune from them to put into the unit and then ultimately back into the car's ECU? Is it close enough (for a lightly-modded car, in any case) to a live dyno tune to make the dyno not worth it?

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Your going to find that the drivers side header is a major PIA but the passenger side is a walk in the park. A few pointers on the drivers side. The bolt at the front of the car use a 14mm on a swivel a 6ich ext then another swivel and another ext and a rachet and attack it through the wheel well... It will make sense when your there. The Bottom two rear bolts attack from underneath with a long 14mm rachet wrench. Also I have a very long 3/8 to 1/2 ext that you use a 14mm semi deep swivel on to remove the cat bolts. But in a good note the passenger side is a walk in the park.

One word of caution, is the 02 sensors in the factory manifold were a major PIA to remove. They were cross threaded at the factory. I have a 18x1.5??? Die at work i used to rethread them before putting them back into the stillen headers. If you need a few pointers PM me for my number and I can help you a bit over the phone.
I'll print that out and take it with me this weekend. I think we have a set of tap+die stuff out there at the shop, so it shouldn't be an issue (the cross-threading).

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And Guys thank you so much for your kind words about my father, he is going in for another surgery this week for his back, that will be three in the last month. The tumor has attacked his spine. Been tough around here between working long hours and helping care for him. I moved back home lately to help out.
Well he must be a good father, to have raised a son responsible enough to go home and help him out in a time like that. Good luck with the surgery.
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