3 months now for my 1/1 M&K and I still dont use the radio

Mine is a one-off 2 in 2 out with a centered pair of outlets, and the low end and bass out of this thing at idle and low revs shocked me. It's scary impressive. You feel it in your chest. I was checking my oil at my local gas station at the beginning of the 110 freeway in Pasadena on Saturday and the other guys there were all looking at it going WTF? I think they were wondering how such a small little white car could sound so ominous and mean. Then I got back on the freeway across from the gas station and wound it up to 7,200rpm, and they got to hear the other end of the spectrum. A chorus of valkyries doesn't sound this breathtaking. So beautiful.

Richard Wagner eat your heart out.

Has anyone dyno'd one of these in a before and after comparo?

Cheers

I 've had my M&K 1/1 since about Feb. of this year and still love it.
The sound is not intrusive in the car but outside it really screams, with a nice mellow tone.
If you drive it hard .....it screams loudly, however if you drive it easy it purrrrrrs.
I'm an old guy who has come to appreciate a nice quite machine while driving, but I really like the sound of the M&K. And I do drive my 911, about 10 to 12K miles per year so it's not a garage queen that is take out only for special occasions.


keep the change...............KC SmileWavy

several have and they posted the results on this BBS. Do a search you will find them.. Mostly on carrera cars is the info I have seen

Wow, just checked back on this thread and it's great to see so many responses! Thanks everyone! Sounds like nearly unanimous praise for M&K, which bolsters my confidence in choosing that product for my exhaust upgrade.

Got a question on the install of a 2/2. My mechanic installed a new 2/2 M&K on a a Carrera 3.2 the other day and when it was started, lots of the stuffing came out of the muffler. Has that happened to anyone?

it's festive, isn't it? :D

Umm, to say the least! I was told when it was started up, it shot that fiberglass wadding all over the place and it was burning or something. Too bad I missed it! :p

we use to include that feature but stopped several months ago as it was burning out to fast. None of the new models get that festive stuff except if you like we can for the holidays:D

Mine was festive...ha ha great sight to see! As someone posted above the sound does get better with age, hard to explain though. At first it was like the muffler had a slight tin sound from deep within, and now it's just a great pure deep rumble. =o)

My fabspeed did the same thing. A little disturbing if you weren't prepared.

Thanks for the tip Ben ;) I tried that already and only found one person who said they had dyno'd one. This was on a thread where I had asked the same question. He said he post results but never did, then some more searching revealed he later sold his headers and his M&K muffler "used for tuning only" in the classifieds.

Surely, you would have a copy of some of these dyno results?

Anyways, if anyone has some comparison data to post that would be great.

Thanks

yeah I did have some but My computer crashed and lost tons of info. I was and have never been that concerned with the dyno info as some are. More of a sound/last for many years type of thing.I do know that several have dynoed them and what the result was that with the cars properly chipped the gain was a few hp. I think the one you were refering to was the sport muffler(more visually pleasing) and I think he did sell it. I wish I could remember who exactly it was thought someone down in florida for some reason.

I will have numbers and charts shortly on our turbo set up though. very soon

that's why we do regular backups to preserve data from your hard drive! Anyway, so the benefit of an M&K muffler is basically better sound, and there's no documentation for any HP gain. Any perceived improvement can be attributed to the so-called "placebo" effect? How would this muffler compare with Monty?

_______________
andfar
86 911 3.2 Targa

Mine blew stuffing all over my driveway and my buddy who was helping me work on the car. It was the inagural starting of a new motor and I looked at the stuffing as if it were confetti celebrating a job well done!

Yeah! tell me about it. up until 5 years ago I had never turned on a computer.

All I can tell you is that some very big well known shop use M&K with very very good success and even work well with MFI cars how many mufflers out there can do that.

as compared to monty ,
I can not compare unbiased so I won't say.

I can also say no one has ever called and asked can I return this muffler it makes less power, my car runs poorly, or it is to restrictive. If there on no believers I offer try it out if you don't like it return it for a refund less shipping costs..

Now I feel that I am over stepping my bounds so I will not comment anymore on this thread. if anyone would like to discuss any further please pm me or email me I would be happy to give any and all feedback

Are these available for B&B headers?

I still have my stock muffler & can truthfully say that it will never go back on as long as I own the car. I get lots of compliments from people on the sound, at idle & at speed. Now the neighbors......

Hey Ben, Is the tailpiece cap exclusively for the Carrera's or do you have them for the sport too?