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Nice discussion here:

http://en.wikipedia.org/wiki/Helmholtz_resonance

I had not thought about it, but the analogy they mention is it is exactly like blowing air across the top of an open empty...

Well start dealing coke/meth I'm sure you'll pick up a few.

Yeah that is even better.

What would be cool for R&D purposes is something you could vary the volume (or length) of to tune it more precisely after road tests. Like for the resonator version a sliding section or even just a...

What you are doing essentially is making a secondary path for the acoustic portion of the exhaust that ends up being 180 degrees out of phase with the primary path, at a fixed frequency (where you...

Still not clear, though I guess that is to be expected. Seems the employee theft was discovered 2 years ago, the actual loss even farther back than that. So the hole in the cash flow was papered...

Somebody on the other forum was just successful getting charges reversed on a weeks-overdue parts order via their card company, anybody else with outstanding parts orders ought to get on this...

Anybody waiting on parts or orders placed by credit card ought to get on the phone ASAP to their card companies and flag the charge. Depending on what your card is you may not have to pay anything. ...

I don't understand who they were expecting to get money from in a court case for employee theft. Who were they suing, Insurance? something isn't making sense if their policy covered 25k that is...

So you can break expensive things inside the engine due to undamped harmonics. it's awesome. look up tacoma narrows bridge collapse.

Just guessing but you had no problems needing a fix they could void the warranty over right then and there, just a recall. But I bet your VIN is now in a database somewhere should you need something...

Agree completely. Consider the recent ZL1 Camaro. Supercharged, mid 600 crank HP stock. Plenty of low end TQ. When it first came out one of the big tuners, Lingenfelter or Hennessy (can't...

+1. Not understanding a lot of the discussion here. Character/marketing issues aside, Shiv & customers poor 1/4 mile times are more reflective of the fact that RWD e9x platform is not such a great...

Another Q, is it #1 here PN 61129125036:

http://www.realoem.com/bmw/showparts.do?model=WC73&mospid=50514&btnr=61_1946&hg=61&fg=30

Also how is the replacement part better/upgraded/different? In...

OK thanks for the info. I was looking at the braided cable while doing a DP install on my Xi last month, wondering if that was it. Hoping it wasn't as an un-insulated + cable would have been kind...

Q for those who have done it themselves. Is this the big braided un-insulated cable you see under the car on the passenger side after you remove the covers?

I think if you had zero issues and just need a cable swapped it is an easy job. On cars that have extra problems that prompted the recall (melted housings, shorting, car dying completely, etc.) it...

Yeah, the early reports on this were that it was a fairly lengthy procedure at the dealer. But if it is just couple of easy hours and the parts are cheap, when/if I have the problem, I'll do it...

Good to know thanks.

Isn't this a huge job? I have no faith in BMWNA's motives but to replace the cables in literally 1000's if not 100,000's of cars just to look for evidence mods sounds a bit far fetched. This is...

+1

Yeah funny how that works.

So do those T-shirts come with the nice rack installed or is that extra?

I think BMW should buy you a new car.

So far so good, appreciate the updates.

At least Shop A had the sense to realize they were in over their heads, and knew of Shop B. I don't think you should have to pay anything beyond what a...