[1ViciousGSX]

Originally Posted by JET

What material does Alien use? It looks like the flange is different than the runners. What thickness is it? The #1 runner turns very quickly after it comes out of the head. I don't even think it is straight in the beginning. I like the polished one a little better where the runners come together.

Archer used to offer a warranty on their tubular mani's too. They may offer to reweld anything that cracks, but that is a PITA. Do a lot of research before you decide.

1/2 inch carbon steel flanges, 304 stainless tubing. 321 flanges and tubing are available, but the price goes up. If I remember correctly (and I may be wrong on this) they said it was 8-gauge stainless tubing. I have some more pics below that show the thickness. I also have a pic of how the runners exit the head flange as Jet has a concern about the runner turning too quickly.

Like Shane said, if they go under, the warranty is going with them. I've never really had any reservations about them or my DNP cracking anyway, if it cracks I get it fixed. Wether it's warranty or I pay somebody some $$ to fix it. It's one of the "risk" I'm willing to take to get performance. Just like anything we do to our cars to make them faster, it's a risk we are all willing to take. Do I want it to crack? NO. If it does, I'll get it fixed.

My DNP manifold cracked, I had Raptor fix it and moved on.