2 catalytic converters
08 October 2013, 09:23 PM
#1
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2 catalytic converters
basically ive recently noticed that my 2003 ppp blob sti has what appears to be 2 cats??? is this normal? or why would this be the case? could this cause my car to run lean?
any advise appreciated as always
many thanks in advance.
any advise appreciated as always
many thanks in advance.
08 October 2013, 09:36 PM
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i always thought the ppp pack had a sports cat in the downpipe and the 2nd cat was deleted? i may be wrong though unless someone else can confirm?
08 October 2013, 10:03 PM
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just found this on another website
"So what’s it all about.. The Prodrive Performance Pack consists of ECU upgrade / removal of the 3rd catalytic converter. New burbly backbox and a stronger silicone pipe for the turbo.. Standard one is hardened plastic and was known to go *POP* when the higher boost levels were applied.
"So what’s it all about.. The Prodrive Performance Pack consists of ECU upgrade / removal of the 3rd catalytic converter. New burbly backbox and a stronger silicone pipe for the turbo.. Standard one is hardened plastic and was known to go *POP* when the higher boost levels were applied.
08 October 2013, 10:56 PM
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just found this on another website
"So what’s it all about.. The Prodrive Performance Pack consists of ECU upgrade / removal of the 3rd catalytic converter. New burbly backbox and a stronger silicone pipe for the turbo.. Standard one is hardened plastic and was known to go *POP* when the higher boost levels were applied.
"So what’s it all about.. The Prodrive Performance Pack consists of ECU upgrade / removal of the 3rd catalytic converter. New burbly backbox and a stronger silicone pipe for the turbo.. Standard one is hardened plastic and was known to go *POP* when the higher boost levels were applied.
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09 October 2013, 08:39 AM
#8
The WRX has 3 cats (uppipe, downpipe, pipe after downpipe)
The STi has 2 cats (downpipe, pipe after downpipe).
The WRX PPP removes the 3rd cat in the pipe after the downpipe.
The 2.0 STi PPP replaces the downpipe cat with a Prodrive sports cat and removes the cat in the pipe after the downpipe completely.
The STi has 2 cats (downpipe, pipe after downpipe).
The WRX PPP removes the 3rd cat in the pipe after the downpipe.
The 2.0 STi PPP replaces the downpipe cat with a Prodrive sports cat and removes the cat in the pipe after the downpipe completely.
09 October 2013, 08:40 AM
#9
2.5 STi PPP consists of OEM downpipe and second cat removal.
2.0 STi PPP consists of Prodrive downpipe/sports cat and second cat removal.
Both have heatshields around the second pipe and a bung for the lambda sensor so it can be mistaken for a cat
Last edited by fpan; 09 October 2013 at 08:43 AM.
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