Stainless steel race catalytic converter, direct-fit replacement for the restrictive factory catalytic converter, on Audi S4/S5 B9 3.0 TFSI. Replacing the rear oxygen sensor is recommended. Not compatible with vehicles equipped with a gasoline particulate filter (GPF).

High-flow race catalytic converter, direct-fit replacement for the restrictive factory catalytic converter, compatible with factory or factory-type turbo and exhaust. Measured gains of more than +33 hp and +27 ft-lbs at the wheel on factory turbo.

Stainless steel race catalytic converter, direct-fit replacement for the restrictive factory catalytic converter, on BMW F2x/F3x B58 engine. Increased power and torque, reduced turbo response time, enhanced exhaust sound. Installation effort: moderate.

Race downpipe in cast stainless steel, direct-fit replacement for the restrictive original downpipe and catalytic converter, on Audi TTRS 8S and RS3 8V.5 2.5 TFSI EVO DAZA. Not compatible with vehicles equipped with a gasoline particulate filter (FAP/GPF).

Stainless steel race downpipe, the ultimate evolution of the original downpipe, direct-fit replacement for the restrictive factory downpipe and catalytic converter, EA888 Gen4 2.0T engine. Not suitable for right-hand drive vehicles.

Race downpipe in cast stainless steel, direct-fit replacement for the restrictive OEM downpipe and catalytic converter, EA888 Gen3 1.8T/2.0T engine, all-wheel-drive vehicles. Increased power and torque, reduced turbo response time.

Motorsport cast stainless steel downpipe, direct fit as a replacement for the restrictive original downpipe and catalytic converter, EA888 Gen3 1.8T/2.0T engine. Increased power and torque, reduced turbo response time, enhanced exhaust sound.

High-flow motorsport catalytic converter, direct-fit replacement for the restrictive factory catalytic converter, compatible with factory or factory-type turbo and exhaust. Observed gains of up to +15 hp and +26 lb-ft at the wheel on stock turbo.

High-flow motorsport catalytic converter, direct fit as a replacement for the restrictive original catalytic converter, compatible with stock and stock-type turbos and exhausts. Measured gains of up to +27 hp and +24 ft-lbs at the wheel on a stock turbo.

Motorsport stainless steel catalytic converter set, direct fit as a replacement for the restrictive original catalytic converters, on Audi RS5 B9/B9.5 2.9 TFSI. Increased power and torque, reduced turbo response time, enhanced exhaust sound.

Motorsport stainless steel catalytic converter set, direct fit as a replacement for the restrictive original catalytic converters, on Audi C8 RS6/RS7 4.0 TFSI. Increased power and torque, reduced turbo response time, enhanced exhaust sound. Installation effort: moderate.

Exhaust manifold gasket and hardware kit, including new manifold/head gaskets, studs and nuts. Can be combined with 034Motorsport 2.7T turbo installation hardware kits for a complete solution when replacing manifolds and turbos on Audi B5 A4/RS4 or C5 A6/Allroad 2.7T.