I was driving behind a Maserati GranTurismo yesterday and it sounded AMAZING.
What do I have to go to achieve that sound from my 2008 XK Coupe 4.2?

 

I've had that same experience... got behind a Maserati and was all "wow".

My understanding is that Maserati uses a Ferrari exhaust. I know that Ferrari expends a lot of effort to get that sound just right.

 

EliteRR rear box and x-pipe to improve high pitch note.. (very aston sounding )

 

Out of all the exhaust videos for a 4.2L I've heard this suggestiong takes the cake.
However, it still isn't going to sound like the Maser.
The Jaguar has a 6,200RPM rev limiter.
The maser is 7,200RPM rev limiter?
You'd have to engineer a higher RPM setup into the Jaguar to get closer to the Maser's sound.
There is a lot more force to go up that 1,000RPM.

 

Ummm I put aston in brackets to imply it's going to sound like a aston vantage , there was no mention indicating anywhere that it would transform into a car that would sound like a maserati.

Your contribution to the OP thread has been invaluable I must say
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I just went through my browser history and hunted this one down.


This is a XK center section(has one resonator instead of XKR's two),
Elite RR Back Box.
I do not recall if the cats were changed or not.

Powerhouse owned this car, but I believe he has moved over to a newer Jaguar.

 

All I see is a black box? What am I missing?

 

Lots of videos on YouTube of various exhaust setups. Note that a naturally aspirated 4.2L will not sound the same as a supercharged XKR with identical exhaust systems, and the 4.2L won't sound the same as the 5.0L.

Here's a naturally-aspirated 4.2L with the factory exhaust followed by the Elite rear box with quad tips. Too bad he didn't rev it higher...

 

The video he tried to post didn't work.

 

Well in my imagination it was MUCH cooler than that!

 

The forum seems to not handle things other than youtube.

If you click the link in the quote you made it should take you to it.

 

I see it now!

 

You need a flat plane crank engine, for one.

 

I went all out and installed a complete Larini Club sport exhaust and 200 cell cats. I'll do a video in the morning.

 

Maserati run a cross planed crank like our v8

 

Nice one similar to my current set up although I'm running 100s and it's looouuddd

 

Ah, you're right. I thought I remembered the Maserati sounding like my Ferrari's high pitched V8, but that isn't correct.

Side by side comparison here for anyone interested, seems relevant to the discussion:

 

Saw a GT in lot yesterday and couldn't help myself , parked up next to the xk it is clearly a monsterious car although they do a brilliant job in the design department hiding its generous bulk
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