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Mark Hendrikx - Automotive engineer at Mosselman

Expert's advice:

Utilizing a single muffler arrangement, the fully titanium Akrapovič Slip-On is designed to be modular. In its basic mode, all exhaust gases flow through the muffler, giving you a deeper rumble of an exhaust note compared to stock without any drone. However, the muffler system is built in such a way that by replacing a blocking plate with the optional Akrapovic sound kit valve system the driver is able to noticeably increase the volume of the exhaust at the press of a button. Once activated, the majority of the exhaust gases route through the muffler bypass outlets. Even when installed on an otherwise stock vehicle, power gains are achieved and weight reduction realized. Complete the look with a set of four exquisite tailpipes in titanium or carbon fiber.

Mark Hendrikx - Automotive engineer at Mosselman

Slip-On Line (Titanium)

Slip-On Line (Titanium)

installation manual

MOSSELMAN tuning experiences

  • Anders M.

    With Mosselmans' performance package I exceeded even more than the company advertised on their website! The information sharing process was easy and hassle-free. Excellent customer service from Leon and his team!

    Anders M.

  • Thom H.

    Mosselman tuned my BMW 318d today. What a result, it became a completely different car! Very professional company and friendly staff. This was my second car here and again they have exceeded my expectations. Thanks!

    Thom H.

  • Rob M.

    Very happy with my improved car, the car reacts better on the throttle and is very direct. Also, the exhaust sounds better!

    Rob M.

  • Bas H.

    Visited Mosselman on May 24th for the chip tuning of my 135i, great result! The adjustment is great, when will you post the photo on FB :)?

    Bas H.

  • Romke B.

    After 1,5 years still very happy with my iTronic. By far the best upgrade I could have done with my BMW 340i.

    Romke B.

Technical details

  Unit Stock Akrapovic Max Gain
Maximum power kW
HP (m)
HP (i)
266.0 / 5650 rpm
361.7 / 5650 rpm
356.8 / 5650 rpm
269.0 / 5650 rpm
365.8 / 5650 rpm
360.8 / 5650 rpm
+ 3.5 / 5670 rpm
+ 4.8 / 5670 rpm
+ 4.7 / 5670 rpm 
Maximum torque Nm
542.6 / 2950 rpm
400.2 / 2950 rpm
544.3 / 3050 rpm
401.5 / 3050 rpm
+ 4.6 / 3100 rpm
+ 3.4 / 310 rpm
Weight kg
- 1.2
- 2.6
- 10.1