Cats or no cats?
05-25-2015, 11:14 AM
#41
Drifting
Yeah cats and FI don't always play together as nice since you have to run richer AFR at WOT/in boost. Plus exhaust gas temps get way way higher. Depending on how much power you're running and how rich you are running.... at a certain point cats just become something you don't want to worry about or deal with.
05-25-2015, 11:20 AM
#42
Drifting
Didn't feel like reading through all the posts. Im here to tell everyone, depending on the size of the motor, having cats and NOT having cats makes a difference. I recently had a 418ci installed and had high flow LG cats. I removed them and gained a total of 20hp with very very little adjustment in the tune. I gained 16hp through the mid range around 3500-4000rpm and 4hp up top. Not to mention a much meaner growl
05-25-2015, 11:26 AM
#43
Melting Slicks
I recently had my stock cats put back on. The car is mostly stock. Although some hp loss was noticeable in upper rpms I def can tell i gained some torque back. The car runs much better and dauly driving is much more enjoyable with the cats. I am glad i put them back on and would only consider going catless if i were making 500+ whp. I did sound nice tho :/ but i say keep your cats.
05-25-2015, 01:48 PM
#44
Drifting
I recently had my stock cats put back on. The car is mostly stock. Although some hp loss was noticeable in upper rpms I def can tell i gained some torque back. The car runs much better and dauly driving is much more enjoyable with the cats. I am glad i put them back on and would only consider going catless if i were making 500+ whp. I did sound nice tho :/ but i say keep your cats.
