A check engine light will come on when stock catalytic converters are removed. It is advised to optimise the software to maximise the power gains.
Do you need a B9 S4 Downpipe, Now available this part hurry up limited stock. Reasonable and affordable price.
CAP AUDI 3.0T DOWNPIPES - 2017-2019 B9 AUDI S4, S5
$449.00 USD
Key characteristics:
100% TIG welded and back-purged
built with premium 304 stainless steel
flanges with precision CNC machining
Installing bolt-on
greater throttle responsiveness and quicker turbo spool up
better exhaust note
better exhaust flow
higher horsepower and torque
A check engine light will come on when stock catalytic converters are removed. It is advised to optimise the software to maximise the power gains.
Fitment:
Audi S4, S5 models from 2018 to 2021 B9 with 3.0 TFSI EA839 turbocharged V6 engines.
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