PPP/STi centre section?
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PPP/STi centre section?
Can anyone tell me what the difference is between this centre section (apparently from a RB5 with PPP):
....and this Classic STi decat centre section:
I was under the impression that they amounted to the same thing but there is a clear extra bulge in the middle of the PPP pipe.
Any ideas what it is, what it does and which will be quietest/most restrictive?
Cheers
Simon
....and this Classic STi decat centre section:
I was under the impression that they amounted to the same thing but there is a clear extra bulge in the middle of the PPP pipe.
Any ideas what it is, what it does and which will be quietest/most restrictive?
Cheers
Simon
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