CTS Turbo downpipe for BMW B58 1/2/3/4/5/7 Series and X3/X4/X5

The CTS Turbo de-cat downpipe for BMW B58 is designed to provide improved exhaust gas flow and greater potential for performance gains. It replaces the restrictive factory downpipe and delivers a sportier exhaust sound.

The product is designed using modern CAD technology for a precise fit in the original downpipe position. It is made from T304 stainless steel, hand TIG-welded and back-purged with inert gas for long-term reliability.

Product details

• 4.5″ downpipe that tapers to 3.15″ or 80 mm for proper connection to the factory or sports exhaust system
• Precisely engineered and tested on the vehicle in real-world driving conditions
• Made from T304 stainless steel with protected TIG-welded joints
• Replaces the restrictive factory downpipe
• Effective upgrade for increased performance
• Distinctly sporty exhaust sound that remains subdued during relaxed driving
• No unpleasant droning when used with the factory exhaust system
• Weight: 9.07 kg

We also recommend replacing the downpipe gasket during installation. BMW factory gasket 18328612538 is required and is not included.

Stage 2 software is required to prevent the engine fault light from coming on. The product is suitable only for vehicles without a petrol particulate filter (GPF/OPF).

Suitable for: BMW 1 II (F20/F21), BMW 2 I (F22/F23/F45/F46/F87), BMW 3 VI (F30/F31/F34/F80), BMW 4 I (F32/F33/F36/F82/F83).

Approval

This part has no TÜV certification (ABE, TTG or Teilegutachten).

Compatible vehicles (manufacturer data)

Before ordering, check that the product matches your vehicle (model, year and engine). If in doubt, write to us — we will check for you.