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The pre-cat (pre catalytic converter in the exhaust manifold) is a roll of catalytic material that Ferrari
decided to insert into the exhaust manifold/ header
in order to improve cold start emissions. Ferrari started doing this with model year 2000+.
This roll (metal-ball-like object) of catalytic material, or pre-cat (ahead of the main catalytic converter),
will break down with bits and pieces of it migrating into the cylinders, scratching them and causing issues.
Both of my pre-cats on my 360 were removed by Ferrari technicians.
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Click here for Ferrari 360 Pre-Cat-Deletion pictures*
Pros:
1. Car sounds a bit louder.
2. Car feels a bit faster in acceleration.
3. Knowing that both of your Ferrari's pre-cats are debris free.
Cons:
1. MPG (miles-per-gallon) drops from an average of 11.5 mpg down to 7.8 mpg. Less than my old school
Supercharged V8 BMW.
2. Will NOT pass Smog Check (If your State requires one).
3. Triggers CEL (Check-Engine-Lights) from time to time with "P0421" Code (Warm Up Catalyst Efficiency Below Threshold - Bank 1/2) on OBDII Scanner.
Conclusion:
Overall a good modification. However, if you live in a Smog-Inspections-Required State then this pre-cat removal is not recommanded.
I will upload a video into
my video section when I have time. Please check back.
Go back to: "YELLOW FERRARI"
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Go to: "Jimmy540i'coms 2 FERRARIS"
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