For one thing, the tech inspector will question not being able to see stud threads if you want to drag race it. Also, the washers distort and get gouges in them. I'm trying some higher quality lug washers now.
I have Racestar's with 28" tall MT radials that clear the Brembo's and don't rub. They're inexpensive when on sale but the lug nuts are an absolute pain. I would go with the Forgestar's like NGOT8R has if they're priced right.
Having to use a spacer was something I didn't learn about till after I did the install on my '15. Turned out fine. The engagement point is similar to stock but quite a bit heavier. Lots of chatter early on too.
2M catted version. $500 a few years ago. Headers fit fine and are 304 stainless so not going to rust. Probably not worth the risk of clearance issues for most people considering the effort involved installing long tubes. I took a chance and it worked out fine. Nice putting the money I saved into...
It would be nice if they all gave an optional X or H pipe that accepted the 3" performance connect headers. Had to modify my Gibson with the extra catless extensions that 2M included with their headers. Obviously welding is required.
Yeah someone else on this forum had the same problem when he added the 18+ analog. It doesn't seem to be a problem when swapping to the digital cluster though. It's still worth it to swap it out. Adjusting the mileage is easy as long as your 18+ has less mile's on it.
My 18+ analog still flashes at 6900 in my 2015. I didn't increase it in Forscan yet. You will lose some of the CTA features. Only the mirrors will illuminate. The audible and dash display didn't work till I got 18+ blind spot sensors. Not a big deal but I like that feature.
Monroe OESpectrum #5512 if you want to get rid of the bounciness at a great price (Rock Auto). I also have a pair of Vikings that I use during spring and fall when temperatures are good for the drag strip. They can be adjusted to ride nice too but are noisier than the Monroes.
I have them in the 28” x 6” size for 18” rims. I think they recently came out with that size. It is a radial but the tread pattern is not suited for wet roads like the SR series would be. They are a couple pounds lighter though. I’m running BMR drag springs.