Damn paul , car is looking tight,!

Thanks ,Us Canadians get our bling on too Dawg.

Our 98 yukon has a 5.7L 350. Denali'* got them till the redesign,2000 i think.

Pete, get that exhaust, and i'll get your magnaflow!

So is that mandrel bending like what Harley Davidson uses to bend their pipes? They use massive amounts of compressed air. Is this the mandrel bending? Curious...

Mandrel bending is when they bend it without kinks in it. Usually when you bend something the opening actually gets smaller as the bend gets sharper, not the case in mandrel bending. Crude example is take a normal straw and bend it 90 degrees, cuts off airflow huh? Now take one of those bendy straws and do the same, flows much better eh? Crude example I know but you get the idea. Hey is this guy up for making headers for a series I? Or is he talking cat-back?

I understand that. I was asking if it was a different method of maintaining the diameter as what Harley Davidson uses (no mechanical bending, but pneumatic). They use air pressure to maintain the diameter. My question is process-oriented...

heh my bad...well uhh...at least you know something twice now..

No worries, mate...

These cars do have a lot of 90 degree bends in their exhausts. I wonder if a straighter exhuast would help them. But I'm not sure how they'd do the muffler.

to find out about mandrel bending, try www.howstuffworks.com or google it.