XFR - X Pipe Placement
#1
XFR - X Pipe Placement
I recently upgraded from an XF to an XFR. I wanted to get the exhaust work done immediately (XFR is so quiet for being such a beast). I have Varex active mufflers from my previous XF that easily swap onto the XFR, but I also wanted to do the X pipe mod on the midpipe section. Searching through the forum I found that most members have placed the X pipe up front, right where the resonators used to be. Then I saw that Spires is selling their midpipe with the X pipe placed in the middle. I want the sound to get as close to an F-Type R as possible and I found that the F-Type stock exhaust also has the X pipe near the center of the midpipe.
Spires Stage 1 Midpipe - https://www.spires-st.com/product/xf...age-1-exhaust/
What are your thoughts on the placement of the X pipe, near the front where the resonators used to be or near the center? From the minimal knowledge I have about exhausts, I hear that the further back the X pipe, the louder the exhaust.
Spires X Pipe:
XFR X Pipe - Forum Picture 1:
XFR X Pipe - Forum Picture 2:
F Type R:
Spires Stage 1 Midpipe - https://www.spires-st.com/product/xf...age-1-exhaust/
What are your thoughts on the placement of the X pipe, near the front where the resonators used to be or near the center? From the minimal knowledge I have about exhausts, I hear that the further back the X pipe, the louder the exhaust.
Spires X Pipe:
XFR X Pipe - Forum Picture 1:
XFR X Pipe - Forum Picture 2:
F Type R:
#4
I think My car sounds a lot like an F-type R
My setup is Straight from the manifold (no cats) all the way to the rear mufflers (Spires Stage 2)
https://www.youtube.com/watch?v=dFXMAaeMpuw
My setup is Straight from the manifold (no cats) all the way to the rear mufflers (Spires Stage 2)
https://www.youtube.com/watch?v=dFXMAaeMpuw
#5
My XFR makes all sorts of crazy pops and bangs when I let off the throttle. Not quite as much as an F-Type R, but very similar. I have Magnaflow mufflers with an X pipe placed right behind the catalytic converters. However, I still have the resonator in the middle of the exhaust in place to eliminate drone. I'm sure if I removed the resonator and had just the X pipe straight to the rear mufflers the pops and backfires would be much louder like an F-Type.
#6
Sounds pretty awesome. So you deleted cats, did the Spires Stage 1 and 2 exhaust? Also curious, what was your 1/4 mile time and trap?
#7
This is what I have heard before as well. 510 HP is plenty enough for me, I am more interested in the exhaust sound without losing any torque or HP by placing the X pipe to the rear. After doing some more research, learned that the XKR-S has the X pipe at the rear, almost near the muffler and that car sounds absolutely amazing.
Last edited by Jaaaggg; 10-16-2017 at 10:26 PM.
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#8
My XFR makes all sorts of crazy pops and bangs when I let off the throttle. Not quite as much as an F-Type R, but very similar. I have Magnaflow mufflers with an X pipe placed right behind the catalytic converters. However, I still have the resonator in the middle of the exhaust in place to eliminate drone. I'm sure if I removed the resonator and had just the X pipe straight to the rear mufflers the pops and backfires would be much louder like an F-Type.
#10
#11
The North American spec XFR-S has the x-pipe at the front.
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#12
The rears on the XFR-S have different part numbers to the XFR, and they have been described as "free flowing" in some marketing material, but nobody has measured &/or dissected both versions to compared the differences as far as I know.
They are different, but how exactly? It's a good question...
They are different, but how exactly? It's a good question...
#13
Thanks Cambo, I did recall that XFR-S had the X pipe up front, but the XFR-S is still kinda quiet IMO for such an all out Jag.
Here are two videos I found on youtube comparing the stock XFR-S exhaust vs Spires X pipe fitted one:
Stock XFR-S:
Spires X pipe fitted:
Basically, the spires stage 1 exhaust removes the extra muffler on the midpipe and changes the placement of the X pipe from front to center. I am really liking the sound of the Spires fitted XFR-S, so I think I will move forward with having the X pipe fitted to center similar to Spires setup.
Here are two videos I found on youtube comparing the stock XFR-S exhaust vs Spires X pipe fitted one:
Stock XFR-S:
Spires X pipe fitted:
Basically, the spires stage 1 exhaust removes the extra muffler on the midpipe and changes the placement of the X pipe from front to center. I am really liking the sound of the Spires fitted XFR-S, so I think I will move forward with having the X pipe fitted to center similar to Spires setup.
#14
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#16
#17
It does sound amazing! I am glad I have the Varex mufflers because I would not love it if the exhaust was always this loud during my commute to work. I did not buy the Spires X pipe because of the high cost to buy and ship it to the states. My muffler guy used a Magnaflow to fab the midpipe to look similar to the Spires one. My X pipe basically replaced the third muffler on the rear end of the midpipe, whereas other XFR owners placed the X pipe where the resonators used to be, to the front of the midpipe. The total cost to me was $320, which included the X pipe, the work involved to cut the two center boxes, and weld on the Varex mufflers.
#18
It does sound amazing! I am glad I have the Varex mufflers because I would not love it if the exhaust was always this loud during my commute to work. I did not buy the Spires X pipe because of the high cost to buy and ship it to the states. My muffler guy used a Magnaflow to fab the midpipe to look similar to the Spires one. My X pipe basically replaced the third muffler on the rear end of the midpipe, whereas other XFR owners placed the X pipe where the resonators used to be, to the front of the midpipe. The total cost to me was $320, which included the X pipe, the work involved to cut the two center boxes, and weld on the Varex mufflers.
#20
https://www.autotrader.com/cars-for-...&modelCode1=XF