BMW 5 Series M5 4.4l Twin Turbo Hybrid G90 & G99 (NAS/ROW Spec Vehicles)
2025 and Later
Secondary Catalyst Bypass
Fits to Milltek Axle Back and Downpipes Only
System Number: SSXBM1415
Consists of:
Tailpipe Style:
1 x LH Secondary Cat Bypass
1 x RH Secondary Cat Bypass
1 x Active Centre Section (NAS/ROW)
2 x Adapters to Milltek Axle Back
Pipe Ø: 3.15" (80.00mm) *
Secondary Catalyst Bypass
Fits to OE Axle Back and Downpipes Only - OE requires cutting
System Number: SSXBM1414
Consists of:
Tailpipe Style:
1 x LH Secondary Cat Bypass
1 x RH Secondary Cat Bypass
1 x Active Centre Section (NAS/ROW)
2 x Adapters to OE Axle Back
Pipe Ø: 3.15" (80.00mm) *
Axle Back
With GT-115 Brushed Titanium Tips - OE requires cutting and included Valves & Controller
System Number: SSXBM1412
Consists of:
Tailpipe Style:
2 x Adapters
1 x LH Axle Pipe
1 x RH Axle Pipe
1 x Rear Silencer
1 x LH Valved Outlet (NAS/ROW) inc Actuator
1 x RH Valved Outlet (NAS/ROW) inc Actuator
2 x Inner Outlet Pipes
1 x Valve Controller with 2 x Remote Controllers
4 x Titanium 4.5" Trims
115 GT
Pipe Ø: 3.15" (80.00mm) *
Axle Back
With GT-115 Burnt/Blue Titanium Tips - OE requires cutting and included Valves & Controller
System Number: SSXBM1413
Consists of:
Tailpipe Style:
2 x Adapters
1 x LH Axle Pipe
1 x RH Axle Pipe
1 x Rear Silencer
1 x LH Valved Outlet (NAS/ROW) inc Actuator
1 x RH Valved Outlet (NAS/ROW) inc Actuator
2 x Inner Outlet Pipes
1 x Valve Controller with 2 x Remote Controllers
4 x Burnt Titanium 4.5" Trims
115 GT
Pipe Ø: 3.15" (80.00mm) *
Axle Back
With GT-115 Cerakote Black Tips - OE requires cutting and included Valves & Controller
System Number: SSXBM1411
Consists of:
Tailpipe Style:
2 x Adapters
1 x LH Axle Pipe
1 x RH Axle Pipe
1 x Rear Silencer
1 x LH Valved Outlet (NAS/ROW) inc Actuator
1 x RH Valved Outlet (NAS/ROW) inc Actuator
2 x Inner Outlet Pipes
1 x Valve Controller with 2 x Remote Controllers
4 x Cerakote Black 4.5" Trims
115 GT
Pipe Ø: 3.15" (80.00mm) *
Axle Back
With GT-115 Polished Tips - OE requires cutting and included Valves & Controller
System Number: SSXBM1410
Consists of:
Tailpipe Style:
2 x Adapters
1 x LH Axle Pipe
1 x RH Axle Pipe
1 x Rear Silencer
1 x LH Valved Outlet (NAS/ROW) inc Actuator
1 x RH Valved Outlet (NAS/ROW) inc Actuator
2 x Inner Outlet Pipes
1 x Valve Controller with 2 x Remote Controllers
4 x Polished 4.5" Trims
115 GT
Pipe Ø: 3.15" (80.00mm) *
* Pipe sizes may vary from part-to-part. Pipe diameters are indicative of the system as a whole and do not necessarily mean every part is of a uniform size.