Originally Posted by Ghozt

Some of these guys spend close to $1000 just on interior/exterior LEDs and HID bulbs. There are worse things to spend your money on than a sick sounding exhaust.

Originally Posted by Ghozt

Some of these guys spend close to $1000 just on interior/exterior LEDs and HID bulbs. There are worse things to spend your money on than a sick sounding exhaust.

Originally Posted by Ross2893

Maybe so but that falls into a different category of car expenses (looks department). And haven't I read you write multiple times not to get sound confused with HP?

No offense but I was only talking about a HP per $ ratio, not exterior expenses so that point is irrelevant to this situation. If people don't mind spending that money on it then all the power to them but even if I went all custom with a similar build idt it would cost me $1549.

That is all..

Originally Posted by Ghozt

do you know how much exhausts cost for other VQ platforms? people are spoiled by the cheaper $800 sets available for the Maximas. The benefit to AAM's is they use extremely high quality materials, the welds are very well done, and it's the only bolt-on 3" to 2.5" exhaust available.

saying I got it only for the looks department is kinda ignorant. the 12 HP gains were un-tuned gains so anyone looking to make power with their tune is going to want an aftermarket exhaust that opens things up. i sold my Borla and got this one because it has larger piping and sounds better and power-wise is the best option for my performance build going forward.

nobody said you have to buy it. but there's a reason why everyone who has gotten the AAM loves their exhaust and would do it again in a heartbeat.

Originally Posted by Ghozt

the point you missed was people waste money on lots of things on this car, like LEDs, so why complain about people spending more on an exhaust with actual benefits? if you don't want to get it, then don't. the # of people on here complaining about the AAM exhaust price though is funny, especially when they had a group buy in the beginning for $850 a set and everyone faked on payment.

Originally Posted by Ross2893

I saw the group buy. Had I had my car then and been a member then I would have without a doubt bought it. That also shows my point about the cost. If the price started at such a good price what's with the nearly 100% inflation??

And I didn't miss any point. You're just overthinking what I wrote. People will not scrutinize the cost of body kits and custom parts like they will when it comes to how much the pay for a performance part vs how much performance gains it gives you.

Originally Posted by Ghozt

The price was below cost, introductory price. Yes - they were taking a loss on each unit. Since people are paying the retail price right now they have no reason to lower it or offer another sale. The words directly from one of their ex-sales guys was "we're not concerned about the number of sales, just as long as we retain a decent profit margin on each individual unit". Since they're hand built here in the US with locally sourced high quality metal, they have a higher price point than say a mass-produced one shipped over from China.

Originally Posted by Ghozt

The price was below cost, introductory price. Yes - they were taking a loss on each unit. Since people are paying the retail price right now they have no reason to lower it or offer another sale. The words directly from one of their ex-sales guys was "we're not concerned about the number of sales, just as long as we retain a decent profit margin on each individual unit". Since they're hand built here in the US with locally sourced high quality metal, they have a higher price point than say a mass-produced one shipped over from China.

Originally Posted by gravkillz

There is no theory here, I doubt you have the accelerometers, vibration consoles, and laser technologies to sufficiently determine your claims. If it were so then you would cover damages to engines due to torsional vibration damage.

I do small custom fabrications for the calibration industry. My main job is performing calibrations on all industries equipment. Every calibration that is performed should have traceability to some standard. We use NIST standards in our laboratory. This practice of calibration is called Metrology, this is no theory. I run many calibrations on rotational assemblies which rely on exact mapping of harmonics generated by torsional vibration. I also calibrate the equipment and sensors that measure harmonics, thermal expansion, frequency, amplitude etc.

Your correct in say the VQ engine is internally balanced but the crankshaft will still resonate when every cylinder fires. Regardless if it is internally or externally balanced, vibrations and harmonics will always exist. Also, to contribute to the vibration the transmissions rotating assembly is also connected to the engine via the clutch/flywheel/TQconverter depending if its auto or manual. Dampener doesn't cancel out vibrations it dampens them. Elastomer dampeners have been the best solution to torsional vibration.

Elastomer wheels are only used as dampeners. If the wheel has an elastomer ring its primary purpose is dampening. CNC machined parts will not eliminate harmful vibrations it just means it was CNC machined. This is also why we have engine mounts and transmission mounts made of similar polymers.

We calibrate most standards to +/- .000001 for aerospace standards that's the lowest end. I work hand and hand with engineers to determine their standards tolerances.

Bottom line is that a dealership will not cover damages due to resonant vibrations if something other than what was designed for their engine is on there. I won't go telling an engineer that the standards they have established is null and void. It is certainly no theory it is a very precise science.

Will it make you feel better to say that what I do is wrong? I calibrate your fuel pumps. I guess that is theory too.

Originally Posted by Josh@STILLEN

...and this is why you don't see parts manufacturers typically get into discussions with enthusiasts on forums. Instead of showing issues with parts, you can get dragged into how much education someone has, crazy discussions on calibration issues, standards, metrology, thermal expansion, harmonics..

If you're building parts for the aerospace industry, I encourage you to tackle the automotive aftermarket, who would love to have a $10,000 crank pulley and some serious documentation for all of the elaborate testing that will go into it.

The part works, it's engineered and CAD designed, and you're seeing no failures.. I'm not saying you and the company you work for aren't talented, it shows that you probably are, but you seem to be peacocking here..