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Old Oct 3, 2003 | 12:40 PM
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Question RSR questions.....

I finally had my RSRīs installed last night and didnīt find any noticeable difference
Maybe the previous owner installed RSRīs? but he did not mention anything.- Does Robin mark them somewhere to differenciate the RSRīs from the stocks so I know if I have them??
My car came with the motorsound option.- Does the motorsound option include mufflers besides the airbox cover? And if it does, is the sound similar?


Thanks gang
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Old Oct 3, 2003 | 12:51 PM
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You know if you old mufflers were RSR's by the weld mark. Robin cuts the mufflers open and you will see a weld mark on each muffler where he puts them back together. No weld mark, not a RSR.
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Old Oct 3, 2003 | 12:53 PM
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DannyBoy...

Take a look at the ones taken off and see if the RSR weld is there. You can check out some pics of the RSR on Robin's site.
http://p-car.com/exhaust/

Here is a direct link to the weld picture
http://p-car.com/exhaust/newcut/images/L37K2975.jpg

-Skip
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Old Oct 3, 2003 | 12:59 PM
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Danny

Robin does not mark his modified RSR mufflers. His "Version 1" (my terminology) had a TIG weld bead around the body of the muffler that showed where it had been opened up and re-welded after surgery. If the mufflers you took off had this weld, they are RSR's.

His latest mufflers (the last 18 mos or so) do not have this tell-tale TIG weld mark around the "can" of the muffler. Robin now opens the mufflers up at their factory weld and re-welds them there. I doubt if you could tell if this operation was done.

I think I am correct in saying that the Porsche "Motorsound" option included a muffler by a different manufacturer (Gilete?). This muffler I believe was a little "louder" than the stock muffler. Others may know more about this than me.

You should be able to notice a difference between Robin's RSR's and even the "Motorsound" option mufflers. You can contact Robin to see if he sold a set of RSR's to your car's PO.
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Old Oct 3, 2003 | 01:07 PM
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Robin also does a bang up job cleaning the old cans up. The new ones should be nice and shiny.
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Old Oct 3, 2003 | 01:28 PM
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I wonder if you were sent some unmodified ones by mistake? Maybe if you take a close up photo of the welds on both the next and old mufflers, Robin will be able to see what you have
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Old Oct 3, 2003 | 01:36 PM
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I would bet there is a significant weight difference???

Don
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Old Oct 3, 2003 | 01:41 PM
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Originally posted by 993944S2
I would bet there is a significant weight difference???

Don
I think there was a 12lb difference for the pair. I posted it a long time ago but can't quite remember.
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Old Oct 3, 2003 | 09:15 PM
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I have heard the Motorspond Mufflers...right next to the RSRs. IMHO, the sound is very similar.
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Old Oct 6, 2003 | 12:58 PM
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Thanks everybody for the responses; Martin: I agree with you, I will
contact Robin and see if he can modify my existing Gillets *I suppose
they are motorsport and maybe the sound will have a little more
rumble. I knew I woud not terrify my neighbors with the RSRīs but I donīt seem to notice the difference. I do have a feeling that they are less restrictive therefore the engine rev's a bit more freely and with the other mods I have done: fabspeed airbox and K&N, the RSRīs seem to work with a good sinergy.
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Old Oct 6, 2003 | 03:15 PM
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I did an RSR swap for my Motorsound cans and wasn't as impressed with the sound difference as some of the folks seem to be. I kept the Motorsound cans and bought a used set of stock cans for Robin to operate on. The RSR's do seem to have a slightly throatier idle and low RPM sound. Still I did expect more.....
Good Luck
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