Akrapovic Exhaust System for BMW Z4 M40i (G29)

This slip-on system is made from high-grade titanium, with parts cast in Akrapovic's in-house foundry, to reduce weight and optimise power and torque through the rev range. The single-muffler layout follows the lines of the car and has four hand-crafted carbon-fibre round tailpipes.

Sound modes give a sporty roar from the six-cylinder engine as revs rise and a more relaxed tone in comfort mode, ideal for cruising with the roof down.

Key Features

• Designed to meet ECE type approval
• Fitment and EC type approval valid for engine type B58B30C
• Optional Akrapovic Sound Kit to control the sound settings
• Optional stainless-steel Evolution Link Pipe set

Specifications

• Material: Titanium
• Homologation: ECE Type Approval
• Weight: 10.63 kg
• Weight saving vs stock: 6.1 kg (36.3%)
• Power gain: +2.2 kW (3 hp) at 2,400 rpm
• Torque gain: +7.4 Nm at 2,400 rpm
• Installation time: 240 min

The Evolution Link Pipe Set (SS) was tested and developed together with the Slip-On Line (Titanium) system.

The Evolution link pipe set upgrades the Slip-On system to the Evolution system. The Evolution link pipe set is constructed from high-quality austenitic stainless steel. It features an arrangement of two central link pipes for the best flow of the exhaust gases from the engine. It is designed to increase power and torque and reduce overall weight, while delivering a deep and sporty sound with no unwanted drone or streaming.

This product does not meet emission compliance requirements for street or highway use.

This evolution link pipe set does not fit on vehicles equipped with Otto particulate filter (OPF).

Specifications

• Material: Stainless steel

This slip-on system is made from high-grade titanium, with parts cast in Akrapovic's in-house foundry, to reduce weight and optimise power and torque through the rev range. The single-muffler layout follows the lines of the car and has four hand-crafted carbon-fibre round tailpipes.

Sound modes give a sporty roar from the six-cylinder engine as revs rise and a more relaxed tone in comfort mode, ideal for cruising with the roof down.

Key Features

• Designed to meet ECE type approval
• Fitment and EC type approval valid for engine type B58B30C
• Optional Akrapovic Sound Kit to control the sound settings
• Optional stainless-steel Evolution Link Pipe set

Specifications

• Material: Titanium
• Homologation: ECE Type Approval
• Weight: 10.63 kg
• Weight saving vs stock: 6.1 kg (36.3%)
• Power gain: +2.2 kW (3 hp) at 2,400 rpm
• Torque gain: +7.4 Nm at 2,400 rpm
• Installation time: 240 min

The Evolution Link Pipe Set (SS) was tested and developed together with the Slip-On or the Evolution Line (Titanium) system.

The Evolution link pipe set upgrades the Slip-On system to the Evolution system. The Evolution link pipe set is constructed from high-quality austenitic stainless steel. It features an arrangement of two central link pipes for the best flow of the exhaust gases from the engine. It is designed to increase power and torque and reduce overall weight, while delivering a deep and sporty sound with no unwanted drone or streaming.

When installing the Akrapovic Evolution link pipe set, remapping the ECU is mandatory in order to prevent potential "check engine light" warning signals.

This product does not meet emission compliance requirements for street or highway use.

Specifications

• Material: Stainless steel
• Weight: 5.56 kg
• Weight saving vs stock: 1.6 kg (22.3%)
• Power gain: +5.3 kW (7.2 hp) at 4,700 rpm
• Torque gain: +13.5 Nm at 4,000 rpm
• Sound level: 95 dB at 3,450 rpm (stock 90 dB)
• Installation time: 150 min

• Schematic new version
• Installation instructions - EN
• Installation instructions - EN
• Installation instructions - DE, IT, FR, ES, PT, SI
• Performance graph
• ECE Type-Approval Certificate

• Schematic new version
• Installation instructions - EN
• Installation instructions - DE, IT, FR, ES, PT, SI