goes on pretty easy, all the sources on line say this and that, I actually had to rent a porta power to push out my cab, could not do it with a six foot bar.
I filled the old piece with water and measured it. filled the new pieces held together by tape with water and measured volume, essentially the same. any advantage must be that path is smooth and round

Riffraff had this and many other products delivered to my house in a few short days, and the quality is worth it. My 3 inch downpipe does everything I need. Reason for the 4 stars is that the welds on mine weren't the greatest. They will definitely do the job, but they are not tig welded. Rather, they are mig welded, and have a lot of undercut. However, the welds are still deep enough that I expect this to last quite a while. As for installation, cut the stock downpipe out, and push the firewall/tranny tunnel out. I got mine to fit by running a 6ft length of 1in square tubing inside, and just pulling as hard as i could. Fit great. Id buy again

can't go wrong

Truck has a little more get up and go.

Does the job at a modest price, fit well.

I read lots of reviews and they all said that any down pipe no matter what manufacture they were from was hard to install. I was able to fish it up into place and bolt it all together with out trimming the pipe or bending anything. I even was able to get the clamp on the joint where the pipes go together with no rubbing. Great pipe Diamond Eye!!!

Have not got it in yet, still working on the firewall. But the pipe itself is well made and of good quality. I don't anticipate it to fail or underperform. If I had the choice to buy it or not all over I'd buy it again.

Very simple task with basic hand tools. Quality sawzall blades make all the difference with the stock downpipe removal. Diamond eye pipe bolted up nicely after firewall clearance was acheived.

Minor tweeking of the seem and fit perfectly.