Turning up a notch or two might be more than acceptable, more might be deafening.

 

if you ever want to track your car here on the West Coast, replacing the OEM is a it already fails sound anything louder you are stuck on the street... YMMV

 

I decided against it on the GT2RS....and at first, thought seriously about doing it on the Speedster....but, after driving the Speedster for a month, top up AND down....I'm leaving well enough alone. To me, it's pointless on a perfect car....If it works, don't fix it.

 

Very sensible.

 

I like loud noises.

 

Robert, so why are you toying with an exhaust system for your R? For performance? For sound?

 

I’m not sure about that statement. When you hear a Cup car, does that sound like your street GT car? Nope! So does that make the Cup car sound not like a typical Porsche?

There are a few good aftermarket companies out there if you choose wisely.

Remember, Porsche needs to conform to the latest emission and noise regulation and they also a budget to content with, so this doesn’t mean the way the car sound from the factory is really the way they wanted the car sound originally. I’m pretty certain no car engineer wants to install an OPF in their cars, but they have to.

 

For the US cars, nothing. Because it doesn’t have a real OPF and the baffle is not connected to anything.

However, having the new electric valve in place on the Speedster (if you decide to go aftermarket), is very important as the DME uses the electric valve to control torque and other factors.

 

Dundon is the only way to go if you decide to upgrade. Their product quality and level of service is top notch. You will not be disappointed.

 

Yep, love my Dundon system and Jamie is top notch.

 

Principally as part of the overall weight reduction effort and to add a bit of additional sound. Also, in conjunction with the new titanium rods, lightweight/high temperature pistons, titanium aluminide wrist pins, lightweight crankshaft with tungsten counterweights, titanium aluminide valves and the carbon clutch, all of which, together, will reduce rotating weight taxing the engine by approximately 28 pounds, the slight extra power that will be gained by the exhaust might have an effect greater than the de minimis norm.

P.S. On the thread entitled "911R Weight Reduction", tomorrow might be a good time to describe what I would call the virtuous cycle of weight reduction.

 

I also did the center delete with the Akra on my Touring. I just wanted a little more sound than the stock...and I purposely lived with the stock for ~4k miles before making the move to the Akra --no regrets since. And the setup (IMHO) is just a notch louder than stock and changes the pitch to the better.

Side story -- a few weeks ago, I met a guy who recently bought a GT3 as his track car (we were both picking up our cars at this shop where he had the front end wrapped and I was having work done on my radar) and he was describing how the exhaust sound was not an important aspect for him since it was his track car and not necessarily his "street" car. We exchanged info and we were both leaving at the same time and I happened to be driving in front of him when we both left. Fast forward 2 weeks later....that guy texted me that he is getting the Akra exhaust for his GT3 because the sound he heard from my car made him reconsider his prior opinion of leaving his stock exhaust alone. Although, I do think that the exhaust sound is such a personal thing, so you should just take what I said here as just one (+1) guy's opinion.

 

I’m super curious to hear what my akra bypass sounds like from driving behind. I’m sure the perspective will be different. OEM I could hear it but it was subtle. I had to listen for it. That prompted me to make the move. Trying to get the other half to drive it and I follow behind. I’ll make a video and post it here once I get that chance.

 

looking forward to seeing/hearing the video as I’m curious myself. And unfortunately my better half can’t/won’t drive stick for me to try my own video.

 

Hi Guys...

Very surprised that I haven't seen anyone discuss warranty issues when changing exhaust components. I have tried several times here with my local Dealership (Kuwait) to get permission to do side muffler deletes/change or even center muffler delete/change, and they have clearly said my warranty would drop if I do any changes. For me, that is the main reason I have held back on doing an upgrade.

I would highly appreciate if anyone could point me to a clause or statement by Porsche anywhere that would support me upgrading my exhaust, so that I may show it to the dealership.