Wow.
I've dealt with Steve and Cammy from Fullsac three separate times for my SERG3 as I did gradual upgrades and last month for my '15 RGU. Each time, the products, advice and customer service were perfect! Even once, recently, when my ultimate problem had nothing to do with their product, they were most patient and helpful. See here:
Re: 2015 RGU: I'm Blue... So Blue... As you can see from that thread, I've installed two Fullsac headers in the last month, a stainless DX which was beautiful and a ceramic coated DX. I also did four mufflers with 1.75" baffles and screens. Over the years, I've installed three sets of Fullsac headers and five sets of baffles. I'm sure many of you have far more experience than I, however. All of the products were perfect.
To answer the op, the DX pipes were perfect in quality and fit. You'll love it.
To those hurling
public insults above, is it not rather obvious that you only insult yourself?
And yes, you did a great job.