BMW F85 X5 M S63 4.4L Performance Exhaust Parts & Upgrades
- Axle Back
- Cat Back
- Complete System
- Cutout
- Downpipe
- Manifold
- Mid Pipes
- Mufflers
- Tips
- Valve Controller
A low exhaust note with a free flow design
A more aggressive sound and increased power
Unleash the Full Potential of the S63 Engine
Unleash the Full Potential of the S63 Engine
Unleash the Full Potential of the S63 Engine
Manually and automatically adjust the exhaust sound level
Control your Varex valve with the press of a button
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
3.0" Inlet - 3.5" Outlet - Forged Carbon Sleeve
This product was last offered at the strikethrough price on
05-19-2026
2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
Add power, sound and unique style to your BMW X5/X6 M with this cat-back system which produced gains of up to +20 horsepower and +33 lbs. x ft. torque
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-27-2026
Light-weight titanium exhaust with a wonderful growl!