I haven't noticed any change in air flow. It's 80 F outside right now, and I just came back from lunch with the A/C cranked: all good.

The material does not impede the romp of the exhaust; it just turns it down under steady load. You still get the roar when you move your foot.

 

Some of us live in Minnesota Show some consideration!!!

-Roger, who was excited that it got to 50 F yesterday, for like the first time since October or something

 

I'm just about to place an order for an exhaust. It's narrowed down to MyMini sport, MyMini touring or Milltek. Please help me compare them to each other. I hear one person saying that the sport has no real droan at hiway speeds and another trying to deadin the droan. Someone else said if ou want a hear a real differance get the sport (and I do,but not to loud).Would Milltek fall some where in the middle of the sport and the touring systems. what Im looking for is a nice low note that you know is there, give you a great sports car feel at idel and excelaration. But wont wake the neighbors and get on my nerves at hiway speeds. I know this is all very subjective to individual tast so please be detailed as posable in comparing the three or with your coments on each.I know theres been a lot of talk on this thread already but a don't want to make an exspensive mistake. THANKS FOR YOUR HELP.

 

how did the the MILLTEK test go

 

In my opinion, the MyMINI sport exhaust is exactly what you're describing. Folks are making too much of this whole deadening thing: it's literally taking a couple of dollars worth of material and covering 2 holes that you can't even see.

The car has a rich purr at idle, sounds nice & aggressive when accelerating and engine-braking, and isn't bad at a constant RPM.

 

Time for an update after a month and about 1,500 miles of motoring with a MyMini sport exhaust w/ no resonator on my Cooper. After installing it, my neighbor, who works at a muffler shop part time, noticed the driver side hanger above the can was touching the heat shield. So I took it back to where I had it installed and we cut the hanger, and also slid the exhaust back a little bit so the tip was beyond the rear bumper. Still had a good bit of drone at highway speed, and then a rattle developed!

You could barley touch the can and the rattle would stop, or start. Been busy so just got it back to the shop a couple days ago and after much investigating he discovered those rubber hangers above the can have metal inside them, and it had worn through in one spot and the hanger would vibrate against the little bit of exposed metal. He pulled off the hangers, heated them up and bent them a bit and put it all back - rattle gone.

The highway drone is much less now and very livable. I'm just guessing, but I think the exhaust has mellowed over time, and the change was not related to the rattle. My wife says she feels like she could now carry on a conversation with someone in the back seat now.

Loving this exhaust and totally happy with it now.
Still has really awesome sound and loud enough to really enjoy
without being so loud to be embarrassing.

 

I've gone out and used a very large wrench to "adjust" that inboard hanger a couple of times, too.

I have a rattle that develops about 3 minutes after starting the car, and disappears about 2 minutes later. I think it's just the expansion of the metal due to heat, like folks have complained about with the Milltek.