Do i need a tune with catless down pipes?
06-20-2024, 08:17 PM
#1
Do i need a tune with catless down pipes?
i have a 16’ C63s and i installed catless down pipes on it a couple weeks ago, will it mess my car up if i don’t get a tune?
Last edited by ohcozy; 06-20-2024 at 08:18 PM.
06-21-2024, 02:45 PM
#2
Junior Member
Catless downpipes will not cause any mechanical damage to the car. Cats impede exhaust flow, so removing them can only help, not hurt.
Assuming you are not getting a CEL, there is no mechanical need to get a tune.
I would personally suggest getting a tune from a reputable tuner to maximize the gains from going catless.
Assuming you are not getting a CEL, there is no mechanical need to get a tune.
I would personally suggest getting a tune from a reputable tuner to maximize the gains from going catless.
06-21-2024, 03:09 PM
#3
i do have the CEL on, fully straight piped i was planning on getting a tune anyways but just in the mean time was just curious if it was safe or not.
Catless downpipes will not cause any mechanical damage to the car. Cats impede exhaust flow, so removing them can only help, not hurt.
Assuming you are not getting a CEL, there is no mechanical need to get a tune.
I would personally suggest getting a tune from a reputable tuner to maximize the gains from going catless.
Assuming you are not getting a CEL, there is no mechanical need to get a tune.
I would personally suggest getting a tune from a reputable tuner to maximize the gains from going catless.
06-21-2024, 03:41 PM
#4
Junior Member
06-22-2024, 11:44 PM
#5
Junior Member
The tune is to correct the AFR (not too lean or not too rich) so the car is running safely & smoothly at part throttle and wide open throttle. The CEL maybe prevented using O2 foulers or if your area does not have any emissions tests then it maybe 'tuned' out. If you live in an area that does emissions checks & the O2 sensor readiness is disabled the car will fail emissions anyway.
