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YOUR RESEARCHSpeedtech X-pipe w/200 cell
Reported or suspected cause
closest he'd ever heard
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Reported cause
He started it inside the bays and let it idle a bit, said it was the closest he'd ever heard to a One 77.
Leading evidence: 'closest he'd ever heard' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'closest he'd ever heard' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Install (with xpipe)' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed
Here is a link to a video I did with no muffler installed (with XPIPE).
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Hi Stuart, James Appleby fitted my cat delete so have emailed him.
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Performed · outcome unconfirmed
I have the Fabspeed Xpipe on my DB9 and I'm using muffler delete pipes now from Stewart.
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Suggestion
Stage two was to replace the muffler with either a Quick Silver Sport or something on par with that.
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36 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
6SpeedOnline: 1 discussions
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Need some feedback about this X-Pipe w/200 cell for 996/02 3.6, the price is attractive. just wondering if the quality of it is comparable to Fabspeed X-Pipe unit. my left catalytic converter is rattling right now and I just started to look around for aftermarket upgrade. Your feedback will be a big help, Thanks everyone.
Ok so I've convinced myself that since I have a V12 I want to hear a V12. Right now I'm hearing two straight 6's. I believe it will be a bit higher pitch but I'm ok with that - I think. Can anyone point me towards videos with clear audio on an x-pipe equipped Aston V12?
Of those of you that have installed an x-pipe which brand? Right now I'm leaning towards the Fabspeed.
Ok I'm an idiot. Didn't look five threads down on the forum.
Ok, let me help you. The SpeedTech prodoct is very good , and I would not have a problem recommending it to you, or the Maxspeed product or Speed Tech. All use the HRE Cat.
Just keep in mind, this is under you car, no one see's it, soooooo SS worth it?
You are correct, x-pipe on a V12 will make it sounds like a banshee at high rpms. It will sound much more like the one-77 but higher pitched still due to the engines smaller displacement.
I am still trying to find a company that does a hig flow X-pipe for the V12 vantage but it appears nobody does so I may have to go a custom route.
I'm wanting to do an x-pipe as well, with the exhaust valves deactivated the sound is great but I think the x-pipe will add a little more.
I'm not positive but I believe the DB9 x-pipe Fabspeed sells will work on the DBS and V12 Vantage. Can anyone confirm?
I just put the speedtech 2.5 Crossflow quiet on my 996tt a couple of weeks. I asked him his thoughts afterwards. He said it was well made, welds looked good and the fitment was fine. I think this is the first one he put on. He had no problems installing it.
Local shop here in Tampa uses nothing but SpeedTek and his customers are happy, FYI, it's the shop a RWB/RAUH-Welt BEGRIFF Porsche was built here in Tampa, so go figure.
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I have the Fabspeed Xpipe on my DB9 and I'm using muffler delete pipes now from Stewart. Sounds fantastic! The X pipe quiets it down quite a bit, so much so that I didn't like how quiet it was even with my very aggressive RSC Supersport back box installed. So I pulled off the muffler and fired it up.. Perfect. Stewart then hooked me up with the muffler delete pipes and I'm set. The car feels like I've picked up 50hp and sounds amazing (imo). The Fabspeed Xpipe will work on a dbs.. Not sure about v12v.
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aggk thanks for your input, I notice that you are from San Francisco do you mine if I ask you the name of the shop and phone number. Please PM it to me if possible.
Thanks.
Wow, X-pipe with no muffler?! Ballsy haha. Kudos!, you must have dropped a good 50-60lbs. Sound clips please
X-pipe does quiet down the exhaust because the exhaust pulses cancel each other out. But it also makes it sound much smoother and higher pitched because of that. X-pipe drastically improves scavenging so it's always great for HP.
I plan on doing something custom as all the existing X-pipes on the market immediate crimp down to down to 2.5" after the header flange. I want to keep it the full 2.75" all the way until after the X-pipe then use velocity cone transitions. This will increase HP gains even more and also help make it louder. The cross sectional area of the actual X-pipe will be significantly larger too for even more air flow and the conical reducers will improve gas velocity even further.
Yeah..It was really a "hail mary" for me as I couldn't quite get the "perfect" sound I was looking for. I had the Xpipe first but like I said, I didn't like how quiet the car was even with my RSC exhaust. So I reached out to Stewart at Velocity and we decided to try removing the Xpipe and trying some straight pipes in place of the secondary cats. That was WAY to aggressive in my opinion. Very raspy and just flat out obnoxious I thought. There was a big increase in power and throttle response when I installed the Xpipe in place of the cats so reinstalling them was simply not an option. Then stewart suggested the muffler delete pipes so I pulled the muffler off to give it a try and I really liked it.
Here is a link to a video I did with no muffler installed (with XPIPE). It basically sounds the same now with the Velocity muffler delete pipes installed.
Aston Martin DB9 muffler removed - YouTube
[QUOTE=007 Vantage;4405875]You are correct, x-pipe on a V12 will make it sounds like a banshee at high rpms. It will sound much more like the one-77 but higher pitched still due to the engines smaller displacement.
My DB 9 has a Fabspeed "X" pipe with a quicksilver super-sport exhaust. The local Lead Aston Tech made the same ONE 77 comment when the seat recall was done. He started it inside the bays and let it idle a bit, said it was the closest he'd ever heard to a One 77. Attached is a quick cell ph Vid. It was done at less than 4000 RPM- Need to respect the neighbors!!
Pitch is not really high on mine even at higher RPMS. It gets allot of compliments.
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Speedracer800, I have a AM MY2005 DB9 with standard shift currently running the original stock exhaust. Could you please tell me the part numbers for these muffler delete pipes you aquired from Velocity and how much they cost? I looked on-line and couldn't find them. I'm planning on installing Velocity Headers, Fabspeed "X" Pipe and these muffler delete pipes if I can find them...
Regards,
drivergmx
Headers with straight pipe exhaust might be overkill. Headers make by far the biggest difference in sound and it might be too much without some sort of muffling capacity (even with the X-pipe).
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Agreed, Perhaps I should explain? At this point in time the full exhaust package is cost prohibitive, therefore I intend to do this in stages. Since I live in Northeasten Pennsylvania Fabspeed is about an hour South of my location. I've also spoken with thier reps at a recent car show where they represented several cars belonging to satisfied clients.
So Stage one of my plan was to install the "X" Pipe and a set of High Flow Intake filters. Stage two was to replace the muffler with either a Quick Silver Sport or something on par with that. Stage three was to install Headers and remap the ECU.
That was before I learned of the Muffler Bypass pipes and modified my plan. Now for stage one I'd like to install the "X" Pipe, High Flow Filters and Muffler Bypass Pipes. Then when the money is available add the Headers and replace the Muffler Bypass Pipes with a Sport Muffler and remap the ECU...
But you know what they say...? A battle plan is great until the first shot is fired right? It all comes down to discretionary capital
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On a V12 engined car, decat pipes plus muffler delete is not ridiculously loud, pretty tasty but not way over the top. When you add in an X-Pipe, it actually quietens down the exhaust note a little bit, so the combination of the 3 is actually a pretty pleasant route to go.
Remember that these cars have a factory exhaust manifold that has 2 big 600 cell catalyst bricks on either side, so you still have a lot of effective silencing upstream, unlike on a V8.
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Thanks Stuart. Very tempted but don't want to go too loud.
How is it compared to a V12V with secondary cat delete? Different sound I appreciate but how is the loudness?
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Hi Stuart, I'm eyeing your decat pipes for my DBS. Do you have any examples of what the sound is like? I am a big fan of the stock exhaust noise of the DBS with fuse pulled but I'd like more of it, especially at lower RPMs. Do you have any suggestions? Thanks in advance.
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DECATTED Aston Martin DBS - Sounds & Accelerations - YouTube
This isn't ours but will sound identical. Secondary De-Cat pipes on a DBS is a nice growl, but not too over the top. Plus you still retain the valve operation.
We are a couple weeks away from being in our new location in the Okanagan, very close to Area 27 Racetrack. Drop me a line - [phone removed] and we could talk about a couple of things/options.
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V12V with JUST a secondary cat delete is going to be a little bit louder than cat delete + XPipe + Muffler Delete. The mufflers on the 12 cylinder cars are not doing as much silencing as the V8's, again because of the upstream cats in the exhaust manifolds.
If you're in London, we have lots of Aston vendors who sell our products, quite close to you. One in particular in Hampshire. Email me at
[email removed]
for more info.
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Hi Stuart, James Appleby fitted my cat delete so have emailed him. Im guessing thats who your referring to?
If its a touch quieter but added power, I'm in!
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DAE is a little further afield but they are the best specialist in the UK hands down so if you've been up there before, then 100% I would go to them.
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And yes, there's more power. If you read this thread, testing was done on a 4.3L Vantage, but fundamentally the same thing as what we'd install on your car.
https://www.6speedonline.com/forums/...ml#post4393766
7RHWP and 20RWTQ. So on a V12 maybe a touch more? You might see 10RWHP and 25RWTQ - add about 20% to get crank measurements.
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Hey Stu,
I do not see it on your website... Also do you have before/after dynoes on the V12 application (specifically the V12S if possible)
Thanks
The aggressive bark and crackle and pops of my secondary decat delete is so nice. The X pipe and muffler delete does not sound as nice IMO.
I guess its a trade off, Awesome noise vs not so awesome noise but with weight loss and a touch more power.
Hmmm.
Have you considered a local custom exhaust shop? Most major metro areas have a handful of knowledgable boutique fabricators that are economical. I did that with my last Porsche and I got a good custom x-pipe for less than half of the known vendors. It had very little drone which is hard to achieve on that platform. Not trying to steer anyone away from sponsors but name brand exhausts for our cars are really expensive.
Anyone looking for some secondary (straight pipe) cat deletes for DB9 or DBS.. I know someone who has a set that is brand new looking for a new home.
just pm me.
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