CTS TURBO B9.5 AUDI A4/A5/Q5 40TFSI/45TFSI TEST PIPE (2021-2025)

Free up your 2021-2025 B9.5 Audi A4/A5/Q5 40TFSI/45TFSI 2.0T’s potential with the CTS Turbo race test pipe. This race downpipe is specific to the B9.5 facelift platform which uses a V-band style connection at the turbocharger, making it a perfect fit for the 40 TFSI and 45 TFSI Hybrid models. 3.5″ diameter stainless steel piping is matched perfectly to a billet v-band flange, allowing for optimal flow as exhaust gases transition from the turbocharger to the rest of the exhaust system. Substantial power gains, improved exhaust flow and a more sporty sound are the main benefits from installing the CTS downpipe. Our friends at Boost Dynamic Tuning created the best Stage 2 file for this Simos 19.7 EA888.4 platform. CTS Turbo + BDT stage 2 combo is the best bang-for-the-buck performance upgrade for B9.5 40TFSI/45TFSI owners. Now available with end-user at-home tuning. Please see the link below for the compatible software tuning options: Boost Dynamic Tuning Stage 2 for Audi A4/A5 45TFSI Boost Dynamic Tuning Stage 2 for Audi Q5 45TFSI Product features Designed using the latest 3D prototyping technology for perfect fit into factory location Large 3.5″ stainless steel piping, billet stainless steel flanges Flanges are fully welded inside and out Welded stainless steel mounting bolts for easy installation (saves you a lot of time) New gasket and copper lock nuts are included, if you wish to renew the turbo gasket: 5Q0253115C Safe for crackle/aggressive overrun tunes Compatible with factory or aftermarket cat-back exhaust systems To remove the CEL that will occur, proper tuning software must be used. CTS Turbo recommends Boost Dynamic Tuning. Fitment (for Borg Warner turbocharger 06N145702D): 2021-2025 Audi A4 2.0T 40TFSI/45TFSI (B9.5) 2021-2025 Audi A5 2.0T 40TFSI/45TFSI (B9.5) 2021-2025 Audi Q5 2.0T 40TFSI/45TFSI (B9.5) INSTALLATION GUIDE BY BOOST DYNAMIC TUNING