Sorry have not gotten to it yet. Only drive it about once every couple of weeks and it sounds so good at all speeds, I haven't felt too motivated to replace the fuse anyhow. Next time I take it out, I'll try recording the sound with my iPhone.

 

I currently have stock Cats then two into one resonator where sound is mixed then each pipe heading to the rear. (2007 XK) I've deleted my muffler completely. Yep...completely. Saved about 30lbs too. The pipes DO NOT cross and was wondering "IF" I put a cross over pipe, how will it change the sound???? More European sounding? Right now my car sounds like a Nascar type sound and would like more Euro sound. Any advice is appreciated.
Here's a crappy phone video:

 

My 2 cents is that it will NOT sound more European... I will just be louder...

 

Here you go:

 

Sounds just right.... spot on..

 

Was thinking about going ahead and ordering the SuperSport Quicksilver exhaust for my XKR. It appears to be a straight pipe system apart from one resonator at the front.... about 1580 GBP shipped from England (about 2600 in USD). You can order it from vivid racing for 2300 but then they charge 600 for shipping!! WTF!!!

Then I started thinking...my current non-performance setup is the following - 2 resonators and a bladder with valves USUALLY CLOSED.

If I ordered the X-Pipe...and then ordered the Quicksilver SuperSport exhaust... what if I used the X-pipe in the front and the straight back pipes in the back?? Would be an expensive way to delete the muffler with Quicksilver built aftermarket pipes going to the back.. I think that would be even crazier then the standard quicksilver no??

I could mix and match as well.... play around with it a bit I suppose...

Loth

 

whats the good word gentlemen?!?

 

Hey Loth, I would go with the x pipe to replace the 2 stock resonators and leave the back bladder with the valves alone. You can open the valves by putting your XKR in manual mode anytime you want. I'm sure you will agree your XKR-S sounds just right. With the X pipe you will have the same exhaust as your XKR-S. Some people may want the exhaust to be even louder. IMO the performance exhaust is perfect for the car.


The more I look at my XKR the more I realize they built it right with no need for extreme mods unless your going to track it etc. For street use the car is golden. On the other hand, I was going to mod my GTR because the GTR is a very modifiable car and it can be improved upon stock; however, I sold it.


I always drive my XKR in dynamic mode and "S" manual and the sound is perfect.

 

I second Glenn's suggestion - bung the X-pipe on, see how you like it. If it's still too quiet, look at replacing the back box. I think you'll still need some sort of muffler in order to stay on the right side of the noise laws, but others have done the straight-pipe solution.

 

Can someone confirm or deny this? In the XKRS.... Does putting that car in dynamic mode open the flaps?! I swear it does for that car.... Loth

 

When I asked the question, the response was that only going into Manual mode opens the valves. They didn't say "Except for the R-S", so I assume the answer covers that model as well. But it's possible the answer was incomplete.

 

Is that also available for the non R version? (XK 2007)

 

I read in a review that the dynamic button caused the flaps to open..... Ive always thought that was possible because if someone else starts my XKR-S in lets say, a garage, where the noise is amplified... then hits the dynamic button...there is an definitive "change" in the sound such that its mildly louder... I need to perform that experiment on the XKR!!

Loth

 

Having driving a few Cup cars at Indy and Talladega, I kinda like the NASCAR sound. However, me thinks, the "Cat" should be a little more refined, not much, just a tad.....
BTW, I have the same quandary. After driving awhile, I'm going to remove the center muff and replace with a "X". Then go from there. My HP mustang has an "X" into SpinTech muffs and is a great sounding higher pitch gravel voice sound.
Good luck in your venture......

 

My car has only one resonator that both pipes from the cats go into, so I'm assuming the sound is mixed there a bit, but a X pipe would sound better I think. It only cost me $275 at a local race muffler shop to do it.
Let us know how that turns out for you. Thanks

 

Here's another crap cell phone video:

 

Well, I think I know what I don't want to remove from my exhaust...

 

The official Performance Active Exhaust was only an option for 5.0 XKRs from 2011 onwards. However, the aftermarket systems should be available for any XK; there may be some differences between the XK and the XKR, but I'm pretty sure I've seen exhaust upgrades for the 4.2 XK.

 

It appears to me that Jaguar engineering has determined that an "X" pipe increases performance vs. an "H" connector. The technology of an "X" pipe has been around a long time. Magnaflow offers a basic "X" pipe and an "X" inside a resonator. Dynomax also offers an "X" resonator. The Jegs offering mentioned above is a "shallow" X pipe that I have seen Borla use. Magnaflow and Dynmax offer a more an "X" with closer to 90 degree corners.
This is an extremely easy and cheap mod for any exhaust shop to make. There is no reason quality or sound wise to spend big money for an official Jaguar part, etc.
As with all mods, keep your take-off parts as you may want to reinstall them someday.

 

Since I'm a new guy here I will keep my comments to myself
Randy