Upgrade instead of compromise: Our high-quality metal catalytic converter for Audi A4 B5 B6 8E A6 1.8T Passat 3B+BG is the perfect solution for all performance projects where maximum power output and full everyday usability go hand in hand. It replaces the restrictive OEM component on a one-to-one basis and ensures a drastic reduction in exhaust backpressure.
No welding, no cutting, no problem: The metal cat is designed so that it can be replaced 1:1 with the old OEM part. Thanks to its precise manufacturing, it fits the original mounting points and flanges.
The catalytic converter features generously sized connections to take in and discharge the exhaust flow of your turbocharger without turbulence:
Inlet (from turbo, inner): approx. 58 mm
Outlet (to downpipe, inner): approx. 69 mm
200-cell metal catalytic converter, EURO4
The 200-cell cat massively reduces backpressure directly after the turbo outlet. The result: Significantly more agile response (better spool-up) from the turbocharger and noticeable thermal relief for the entire engine.
The heart of this OEM-look catalytic converter is an extremely temperature-stable and flow-efficient metal monolith mesh. Unlike standard imports, this high-quality cat is coated so efficiently with high-quality material that it reliably complies with EURO 4 emissions class with a power increase of up to approx. 400 hp (provided clean ECU tuning). This makes it the ideal companion for ambitious Stage 2 and Stage 3 conversions.
Please note: Since the high-performance catalytic converter allows the exhaust flow through significantly faster and with less resistance than the restrictive OEM cat, it is possible that the post-cat sensor (diagnostic sensor) registers this altered flow as a deviation. Depending on the vehicle's software version, the post-cat sensor should therefore be deactivated or programmed out via software as part of map optimization in order to avoid an error message (MIL) in the cockpit.
Scope of delivery: 1x metal catalytic converter (Plug & Play)