CTS Turbo Decat B9 Audi S4/S5 3.0T (EA839) 2016-2018

CTS Turbo B9 S4/S5 3.0T (EA839) cat-delete test pipe is made to maximise exhaust flow for highest power gains. Do not compromise performance and sound with factory parts – unleash your B9 S4/S5 3.0T potential!

Designed using the latest in CAD technology; this part is made to fit perfectly in place of restrictive factory catalytic converter. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance.

In addition to unleashing the power and performance of your 3.0T, the CTS B9 S4/S5 3.0T EA839 test pipe will make your vehicle sound like an S-car really should. When installed with factory exhaust it produces a sporty growl with much more pronounced exhaust “crackle” on downshift. While up-shifting you will enjoy a confident “braappp!” as you bang through all 8 gears. The sound will be even louder if you already have an aftermarket exhaust system.

Product Details:

• Designed and tested on a real car in the real world
• T304 stainless steel, TIG welded back-purged construction
• Replaces restrictive factory catalytic converter
• Install hardware included
• Great power upgrade with uncompromising performance
• Incredible sporty exhaust sound, subtle when cruising
• No drone with factory exhaust
• Stunning polished finish for great looks

Fitment:

• 2016-2018 Audi S4 3.0T (EA839)
• 2016-2018 Audi S5 3.0T (EA839)

To remove the CEL that will occur, proper tuning software must be used. CTS Turbo recommends choosing a High Flow Cat for the sake of our environment!

Use of stage 2 software upgrade is strongly recommended. CEL eliminators or oxygen sensor spacers are ineffective with B9 S4/S5 and will not help
Not suitable for an OPF Equipped Vehicle. 

The use of de-cats, sports cats are for off road/motorsport use only. Using these parts would inhibit your vehicle from passing a MOT test.

Only EC type-approved components are legal and fit for road use.

If non EC type-approved components are fitted at Awesome, the vehicle cannot be driven from our premises on the road, the vehicle will need to be recovered on a trailer to prove your intention is for off road use.