You know, I've been on this wild internet hunt. My Duramax has been guzzling fuel like there's no tomorrow and I've heard whispers about this
lml up pipe. So, I thought, why not give it a shot? I must have clicked through a million pages, each one more confusing than the last. But then, jackpot! Stumbled onto this page on SPELAB Auto Parts. They've laid out everything - the pros, the cons, you name it. It's like they knew exactly what I was looking for! Now, I'm no mechanic, but this stuff seems pretty straight forward. What do you think, is it worth giving it a go?