I put these tires on my SRT-6 a week a go to replace the OEM Conti all season tires. At 17,500 miles the rear Conti's were almost at the wear bars and the fronts had plenty of wear left. I wanted a pure summer performance tire as the SRT-6 will never see cold temps let alone snow/ice. I narrowed my choices down to the Continental Extreme Contact DW and the Dunlop SP Sport Maxx TT.

The Dunlops were right at the top in dry performance but where they blew away the competition in Tire Rack testing was wet performance. They weren't just a little better, the gap was pretty substantial.

So, after a few hundred miles.....

• Good grip but I can still break traction from a stop if not quite as easily.
• Responsiveness to steering input is nice and sharp.
• Ride quality is pretty good, not harsh. But that was supposed to be the Conti's strong suit. So maybe not as comfortable as the Conti's.
• Noise levels are...well...apparent. This isn't a super quiet tire but not obnoxious loud either. If you value noise levels over ultimate handling, this may not be the tire for you.
• Wear? The Dunlop's have a UTQG of 240 whereas the Conti's carry a UTQG of 340. But it's almost impossible to compare any two tires as the UTQG is a relative rating within a given manufacturers product line rather than an absolute measure of wear.
• Cost? The four OEM size Dunlop's cost me $950 with mounting, balancing, alignment, and tax.

I'd recommend them as a candidate if you're looking for a max performance summer tire and wet performance is important to you in a car that can break the rear end loose like the SRT-6.

 

To offer a bit of a counterpoint to your post, I looked at the Dunlops as well but just recently purchased the Conti ExtremeContact DW's for my NA and couldn't be happier. I ran the same tires on my race car at Road America in early April and fell in love with them for their grip and feel. Now that I've got them on the Crossfire too, I find it literally impossible to break traction while cornering in the dry. Hard first gear launches in 1st will break them loose for a split second but they grip so much better than any tire I've ever used. Additionally, they ride better than my Michelin Pilot Sport AS+ that I use in the winter and are quieter as well.

The Contis cost about the same as your Dunlops but I'd imagine it was a bit easier to find the Dunlops in stock whereas I had to wait a couple weeks to get my tires in.

The only downside I've found with the Continentals is that they aren't quite as responsive as I'd hoped they'd be. They're certainly not bad by any means and still very confidence-inspiring in terms of grip, but I suppose there's some trade-off there with the softer sidewalls for better ride comfort. I'm looking forward to really putting them through their paces on the race track in a couple weeks to see how they wear after some real abuse.

 

Good choice! You can't go wrong with either of these tires. They are only about $50 apart in price. Tire rack testing has them almost dead even in dry track handling and braking. The Dunlops have an advantage in the wet. The Conti's are judged quieter and better riding with maybe a better wear rating.

In the end, I'm not sure the average (or even above average) driver could really notice a difference between the two tires. And both brands have a solid reputation.

I went back and forth on these two tires for a week before opting for the one with the better wet handling. I will say that after about 1,200 miles on them, they are not the quietest tire I've ever used. There's a noticeable "growl" right down to about 20 mph.

The other choice I was tossing around was the Bridgestone RE-11. But, at $400 price differential their additional cost didn't really seem to be justified by Tire Rack performance testing.

 

Both tires are so evenly matched, it's hard to really say which is better than the other.

As for the RE-11's, those are great as well but for that money, you'd be better off getting the new Michelin Super Sports. I might have to give those a try next. I'm loving my Contis so much right now though that I'm tempted to pick up a set of DWS's for the winter now.