my NNQ catless didn't fit. Cost me $$ as I was having stuff done all at once, and it wasted my indy's time. They were cool about it but I can tell slightly irritated [here I am bringing in my parts that dont fit
] ..
TBH after researching all the hassles with DP fix, noise, smell etc, I will just save up the $$ and get some good catted [Turner or CPe] . ATM I have factory catted dps <-> secondary with Borla S type catbacks. Sounds nice but some drone. Once I get the catted DPs I may go with some small resonators in place of the factory secondary cats. I think that solution may give a better result than catless DPs [also no funky dp fix needed etc.]
Just my thoughts.