The GRAIL 3-inch valved exhaust system for the BMW M135i (F2x) delivers a deep, aggressive turbo sound with dual-mode control for daily comfort or maximum performance. Handcrafted in Germany, it improves exhaust flow and enhances overall driving experience.
Specifications:
System type: Valved cat-back exhaust system
Diameter: 3-inch performance piping
Material: L304 stainless steel
Valve system: Electronically controlled valves
Approval: ECE approved (road legal in EU)
Compatibility:
Suitable for BMW M135i (F2x)
Also compatible with M140i (engine/platform dependent)
Features:
Dual sound modes (quiet / aggressive)
Improved exhaust flow and reduced back pressure
Handmade in Germany with premium materials
ECE-certified for legal road use
Direct bolt-on fitment
Ideal for drivers looking to upgrade sound and performance, this GRAIL system offers a strong, refined exhaust note with everyday usability.
Lawrence Ramirez (verified owner) –
The system feels premium and well-engineered.
Richard Garcia (verified owner) –
The sound is aggressive without being overwhelming.
Dennis Campbell (verified owner) –
The sound is smooth and not overly loud.
Aaron Edwards (verified owner) –
Gave my car a much more aggressive and premium sound.
Gabriel Hughes (verified owner) –
The exhaust note turns heads everywhere I go.
Frank Carter (verified owner) –
Completely transformed the driving experience with a sportier sound.
Keith Cooper (verified owner) –
Noticeable improvement in throttle response.
James Anderson (verified owner) –
The sound is exactly what I was looking for.
Rachel Woods (verified owner) –
No rattling or vibration after installation.
Brandon Adams (verified owner) –
The sound is aggressive without being overwhelming.
Michael Johnson (verified owner) –
The design fits perfectly with the rear bumper.
Jeremy Rivera (verified owner) –
Very high-quality construction and finish.
Harold Murphy (verified owner) –
Perfect balance between performance and comfort.
Bruce Wood (verified owner) –
Installation was straightforward and everything fit perfectly.
Laura Hayes (verified owner) –
Gave my car a much more aggressive and premium sound.
Patrick Turner (verified owner) –
The quality is consistent throughout the system.
Wayne Jenkins (verified owner) –
Very high-quality construction and finish.
Zachary Cook (verified owner) –
The design fits perfectly with the rear bumper.
Rebecca Diaz (verified owner) –
No issues at all since installation.
Aaron Edwards (verified owner) –
The exhaust note turns heads everywhere I go.