Akrapovic BMW M135i (F40) Slip-On Line S-BM/T/15H

The Akrapovic BMW M135i (F40) Slip-On Line S-BM/T/15H

Expertly crafted from high-grade titanium, the Akrapovic BMW M135i (F40) Slip-On Line S-BM/T/15H exhaust reduces overall weight by 55.6%. Going from 16.9 kg down to 7.5 kg (a 9.4 kg savings), this design significantly improves your M135i’s power-to-weight ratio and agility. The carbon-fibre tailpipes add a distinctive finish that sets your BMW apart.

Enhanced Power & Torque

During in-house dyno testing, the Slip-On Line system delivered an additional 3.3 kW (4.5 hp) at 5,350 rpm and a 5.9 Nm torque increase at 5,300 rpm. This improved flow and optimized pressure pulse distribution elevate throttle response and engine performance throughout the rev range, making daily commutes and spirited drives more engaging.

Signature Akrapovic Sound

An in-house cast exhaust valve lets you enjoy a deeper, high-frequency tone without droning at cruising speeds. Shifts are emphasized for a more dynamic feel, and a special Y-split dampens flow noise while preserving strong, full-bodied acoustics. The result is a soundtrack that’s simultaneously refined on the highway and invigorating under hard acceleration.

ECE Type Approval & Installation

This exhaust carries ECE type-approval for 2020 model-year cars equipped with a gasoline particulate filter (GPF), ensuring compliance without extra modifications. Installation requires cutting the stock exhaust—refer to the detailed instructions for precise fitment. Compatible with the BMW M135i xDrive, the system preserves everyday comfort while unlocking true performance potential.

Further Upgrades Available

• Evolution Link Pipe Set (SS) (E-BM/SS/6): Enhance exhaust gas flow even more, creating additional room for power gains.
• Akrapovič Sound Kit (P-HF1312): Adjust exhaust-valve control on demand, tailoring noise levels to your driving style.

Key Advantages of Akrapovic BMW M135i (F40) Slip-On Line S-BM/T/15H

• 55.6% Weight Reduction: Faster acceleration and sharper handling
• Improved Power & Torque: Notable gains at mid-to-high rpm
• Distinctive Titanium & Carbon-Fibre Construction: Durable, race-inspired aesthetics
• ECE Type-Approved: Simple plug-and-play with no ECU remap required
• Optional Upgrades: Link pipe set and Sound Kit for further performance and acoustic customization

Revitalize your BMW M135i (F40) with the Akrapovic Slip-On Line S-BM/T/15H—an ideal fusion of cutting-edge materials, precise engineering, and unmistakable sound.