I believe that the 10 degree angle is because of moisture in the exhaust because H20 is a bi-product of combustion. So when its off the sensor wont sit in or have as much water on it?

Thanks for the comments guys (looking into turbo set up now )

 

Do it. It's my route. I need more turbo stangs on this forum so I'm not the only one. Tax return buddy is my kit.

 

Check this site out since you have a npi car. http://www.spyderturbosystems.com/4.html

That come with everything you need for that price. IMHO it's a steal.