I fabricated the whole thing in one piece. I'll post the whole process in the DIY section in a minute.
Turned out awesome, I'm pretty sure it'll give me 20 more horsepower and a 10 mpg boost! And of course Harry will get himself some much-deserved free advertizing if I ever flip Turtle!
Here's the DIY thread:
http://ecomodder.com/forum/showthrea...tml#post456675