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The BMW 1 Series is the entry-level compact of the BMW range, historically rear-wheel drive (front/all-wheel from the third generation), available in sporty M135i guise.
Fitting a Milltek performance exhaust to the BMW 1 Series means unlocking more from its engine: the sound gains character, weight drops versus the original and throttle response becomes more immediate — all in T304L stainless steel, made in England and tested at the Nürburgring.
For the BMW 1 Series, Milltek's catalogue includes: Additional parts, Cat-back, GPF/OPF Bypass, HJS Tuning ECE Downpipes, Large-bore Downpipe, Particulate Filter-back, Rear Silencer(s), Secondary Cat-back, ValveSonic +. Exhausts with road homologation state so in the product description and are delivered with the relevant certificate.
Browse the products below to find the exhaust compatible with your BMW 1 Series. Looking for another BMW, find the full range here: All BMW models by Milltek.
There are 75 products.
Active filters
Milltek SSXBM1421
GPF/OPF Bypass
To fit to OE downpipe and Milltek OPF Back System Only
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1420
GPF/OPF Bypass
To fit to OE downpipe and OE OPF Back System Only
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1419
Particulate Filter-back
OPF/GPF Back System for OE Rear Diffuser with Burnt/Blue Titanium GT-100 Tips
Quad 100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1418
Particulate Filter-back
OPF/GPF Back System for OE Rear Diffuser with Brushed Titanium GT-100 Tips
Quad 100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1417
Particulate Filter-back
OPF/GPF Back System for OE Rear Diffuser with Polished GT-100 Tips
Quad 100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1416
Particulate Filter-back
OPF/GPF Back System for OE Rear Diffuser with Cerakote Black GT-100 Tips
Quad 100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1322
Large-bore Downpipe
4.5
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1242
Additional parts
Maxton Diffuser for Quad Outlet System (M2 Style) - Gloss
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1244
Particulate Filter-back
Maxton x Milltek - OPF/GPF Back System with Quad GT-100 Polished Trims - ECE Approved (OE System Requires To Be Cut For Installation) - MUST BE Fitted with Maxton Diffuser
Quad 100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1245
Particulate Filter-back
Maxton x Milltek - OPF/GPF Back System with Quad GT-100 Cerakote Black Trims - ECE Approved (OE System Requires To Be Cut For Installation) - MUST BE Fitted with Maxton Diffuser
Quad 100mm GT100B
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1247
Particulate Filter-back
Maxton x Milltek - OPF/GPF Back System with Quad GT-100 Burnt/Blue Titanium Trims - ECE Approved (OE System Requires To Be Cut For Installation) - MUST BE Fitted with Maxton Diffuser
100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1246
Particulate Filter-back
Maxton x Milltek - OPF/GPF Back System with Quad GT-100 Brushed Titanium Trims - ECE Approved (OE System Requires To Be Cut For Installation) - MUST BE Fitted with Maxton Diffuser
Quad 100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1206
Particulate Filter-back
OPF/GPF Back System - JET-115 Carbon Trims - Proposed ECE System
115mm JET-115
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1202
Particulate Filter-back
OPF/GPF Back System - GT-115 Polished Trims - Proposed ECE System
115 GT
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1203
Particulate Filter-back
OPF/GPF Back System - GT-115 Cerakote Black Trims - Proposed ECE System
115 GT
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1205
Particulate Filter-back
OPF/GPF Back System - GT-115 Burnt Titanium Trims - Proposed ECE System
115 GT
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1204
Particulate Filter-back
OPF/GPF Back System - GT-115 Brushed Titanium Trims - Proposed ECE System
115 GT
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1248
Particulate Filter-back
Maxton x Milltek - OPF/GPF Back System - Quad GT-100 Polished Trims - Proposed ECE System - MUST BE Fitted with Maxton Diffuser
Quad 100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1249
Particulate Filter-back
Maxton x Milltek - OPF/GPF Back System - Quad GT-100 Cerkote Black Trims - Proposed ECE System - MUST BE Fitted with Maxton Diffuser
Quad 100mm GT100B
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1251
Particulate Filter-back
Maxton x Milltek - OPF/GPF Back System - Quad GT-100 Burnt/Blue Titanium Trims - Proposed ECE System - MUST BE Fitted with Maxton Diffuser
100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1250
Particulate Filter-back
Maxton x Milltek - OPF/GPF Back System - Quad GT-100 Brushed Titanium Trims - Proposed ECE System - MUST BE Fitted with Maxton Diffuser
Quad 100mm GT100
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1200
GPF/OPF Bypass
Fits to the OE OPF/GPF Back System Only MSBM393 - Requires Stage 2 ECU Remap or OPF/GPF Bypass Module (Available from www.leib-engineering.de)
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1201
GPF/OPF Bypass
Fits to the Milltek Sport OPF/GPF Back System Only & Includes OPF/GPF Bypass Module (No ECU Tuning Required / No CEL)
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1156
Particulate Filter-back
OPF/GPF Back System with JET-115 Carbon Trims
115mm JET-115
Before ordering:
Please check installation details on the manufacturer's website.
Milltek SSXBM1154
Particulate Filter-back
OPF/GPF Back System with GT-115 Titanium Trims
115 GT
Before ordering:
Please check installation details on the manufacturer's website.
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