Really impressed with the upgraded exhaust, I wouldn’t have been able to tell it was a 4cyl if you drove past.

 

That sounds and looks great!

 

Did anyone tryed to just take out the central muffler, and keep the stock final exhaust pan ?

For all cars under waranty, they will close engine waranty if exhaust is modified.
So, keeping the stock end muffler is a must. Just take off central one and put a strait pipe.

This mod can be reversed.

It will make more noise, close valve, even more with open valve. And it looks stock. They will only see the mod if they put the car in a elevator.

This could be the chepest mod and the most secure one for waranty cars.

Im talking taking of the number 8 in picture (intermediate pan)

 

That's the resonator, it's one way to do it and will give you a nice sound I think.
However in my country when I have to go to a yearly checkup / attest to be allowed on the road, they will see this part is missing.
I am also looking to modify mine in a couple of weeks and I think I will go this route: https://www.jaguarforums.com/forum/f...xhaust-222570/
They can't see that it's modified, it looks original and I think the sound will be good.
For the P300 muffler it will only be 1 straight pipe (pipe with the biggest diameter).
When valve is open the pipe with biggest diameter is straight piped, when closed it will go through the muffler and it's muted.

 

That mod in the final exhaust muffler was my first idea.

Open the muffler on the uper side of the valve tube, cut and put a strait tube.

But in the 2.0cc it will not produce much diference.

Notice that the 2018 up, the exhaust valve when active by the inside botton, only open when you acelerate, and it close when you lift acelerator.

So the valve is always open and closing. If you acelerate very soft you will see:

When open valve is active:
- Open - when idling
- Close - when reach 2000 rpm
- Open - when reach 4350 rpm

When open valve is not active:
- Open - when idling
- Close - when reach 2000 rpm
- Close - when reach 4350 rpm

Some guy in Taiwan, make the inside final muffler mod, and he say did not make any diference. Only by taking off the central pan (resonator) it level up the sound.

The strange is that he open the final muffler again, and put again the part he cut inside final muffler, because he say it help making the sound more grount...

So, just for the 2.0cc, the mod will be just taking of the central pan (resonator).

 

Ahaa ok, thanks for the clear explanation.
Then my idea wasn't a good solution. I don't even have the exhaust button, but in Dynamic it will do the same.
I was also thinking about adding a vacuum pump with a remote, that way it will always stay open if I want to.
I was also thinking the part inside the muffler will produce a nice sound, but thought the straight pipe won't make it any worse.
But eventually this won't make the sound any better.
The resonator delete might be a better solution than.

 

AIUI, and based on personal experience, in non-dynamic with the button on, the valve opens at 1500 rpm, so throttle use is incidental. In dynamic it's open all the time, you can clearly hear the difference at tickover.

 

Is the OPF also located in the resonator?
Removing the resonator won't throw any fault codes I suppose?

 

It wont throw off any codes since there's no sensors there.
As for the warranty, getting an aftermarket exhaust wouldn't ruin the warranty either since it's all bolt on. There's nothing getting changed to car at all in terms of programing or anything.
Same should go for just getting rid of the resonator, I was going to go this route with my car, but no shops near me would work on it. I'm also not sure it would make a huge difference with noise, since I saw other people do this and eventually they ended up also removing the back box to help get a better sound.

 

In case anyone wonders what the Ragazzon exhaust sounds like while driving. I found a Video by "Car Performance":

https://www.facebook.com/CarPerformanceBelgique/videos/390156032322698/

 

I found another exhaust today for the F-Type 2.0:

Never heard about Zen-Rage exhausts, the shop doesn't list it for the 2.0 though.
Probably soon.

 

Back to the exhaust guy for centre box delete and twin 5” slashed and bevelled pipes 😎

 

Nice! Looks good, how is the sound with the centre box removed? No drone?

 

no drone at all , was surprised to be honest, just more pops and bangs

 

I finally did my exhaust yesterday, I replaced the central resonator with a straight pipe on the intermediate pipe. I am happy with the result!

Very easy and cheap conversion, it took about 1,5 hours.

I had to remove the exhaust muffler to remove the intermediate pipe, this was the easiest way to do because I had to cut the central resonator off. The intermediate pipe is 65mm (outside diameter), my new pipe with tromp is 65 mm on the inside of tromp and the straight part of the new pipe is 65mm on the outside. The pipe is 500mm long and I only had to cut a little part off to be able to place it instead of the central resonator.

I am happy with the sound! This is how the F-Type P300 should sound. To be honest I expected a bit more noise, but in the end it’s perfect for my taste. I don’t like it when a 2.0 engine will produce soo much noise, that it will sound ‘cheap’. It keeps the original sound, but the sound level just increased a bit more overall. The pops and bangs are more clear and the sound just has a bit more of a burble. Stationary there is not much of a difference, just a tiny bit deeper sound.

I will make a video soon and will share it here.

 

I look fwd to video as i debate what to do with my exhaust

 

This week i finally see what is the true motion of the exhaust valve on p300 2.0cc f-type.

The car parket is always with valve on.
When you acelerate without button active, the valve close, only open again lower then 2000rpm.

With button actived, wen you acelerate, the valve stay open, but for strange, it close when you take off gas pedal. (Maybe for counter-back exhaust gases).

Valve motion - always open and the cable using air close it.

did anyone open the stock final muffler/exhaust that can post picture or tell how it works inside??

My theory is that, left and right tube, work like V6 exhaust without the valves open. The gases enter and have to go to the sides, to enter the tube that goes to the exit, like pic i posted.

 

What's the behaviour like with dynamic mode selected? That avoids the need to worry about the switch.

 

Sorry I still haven't uploaded a video. On Camera you almost cannot hear the difference with the resonator removed. (At least not with a iPhone microphone) In real life it's a nice simple way to make it sound just a bit better. No big difference though but overall just a bit louder and a bit more pops, a nicer sound overall (but you get used to it, pretty quick ;-) ).

That's left me to check for another way to improve the sound a bit. I checked how it will sound with the muffler removed: really loud and lots of pops & bangs! I’m not a big fan about a straight pipe on a 4 cylinder though, in my opinion it’s just a bit too much and the sound is too different. (However I heard it only standstill, not while driving)

So I bought another 2L exhaust / muffler and cut this thing open. It was not what I expected.. ;-) So different from the V6 muffler and more difficult to improve the sound. The pipe with the valve is ‘almost’ a straight pipe, but 1/5 of the pipe is double layered. (I made it green on picture) The inside has holes and outside is just a pipe, it’s a mini muffler. The pipe without valve goes to the big chamber / muffler and has a long way to go to reach the outside. It was difficult to find a way to improve the sound because the big pipe with valve is difficult to modify to a completely straight pipe. This left me to make the muffled sound a bit louder. I cut the pipe so the muffled sound has a shorter way to reach the outside. I hope this will work and I hope to complete this the end of next week. It’s really difficult to weld because the stainless steel is really thin. When it’s done I will share it in this topic. :-)

And for the exhaust button, mine doesn’t have this button. And in my opinion I didn’t notice a big difference when it’s in dynamic or comfort. When I lift off the gas the valve closes automatically (I think). I removed the tube from the valve and now it’s always open. I didn’t test it much, but I experienced a bit more pops & bangs.


Original


I cut this little pipe and I hope it will sound better. It's now a shorter way to reach the outside.

 

Replying the question, exhaust button ON or dynamic ON, give exact same thing of valve work (open and closing).

Nice work you got there Giomgio!

So finally we know how is the inside of the final muffler.

The change you made will not produce any results, because you did not acelerate the exhaust gases travel.

Due the inside of the muffler, i post a picture telling what to do.

Red color - parts to cut
Orange color - parts to close / build

Right side (without valve) - we should not change the chamber action, just limited it, so when the Engine Management want to close the (left Valve) for back presure gases, it can, and produce what Engine wants, increase back presure.

Middle right - keep the smal holes, just close the big after cut the tube. (Orange color)

Middle left - close all holes with piece of metal or with welding machine.

Left side (with valve) - the only thing to do here is cut the tube, and weld a strait tube to exit. Cut the strait but in half and weld first the lower from inside, and the uper weld from outside.

Great job boys !

👌