Upgrade your M3/M4's exhaust to make the S58's naturally aggresive tone shine!
Upgrade your M3/M4's exhaust to make the S58's naturally aggresive tone shine!
Enables the control of a single electronic exhaust valve
Please visually confirm the exhaust valve actuator installed on your vehicle prior to purchase or installation - Only compatible with systems requiring a single electric valve actuator
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
Upgrade your M3/M4's exhaust to make the S58's naturally aggresive tone shine!
Upgrade your M3/M4's exhaust to make the S58's naturally aggresive tone shine!
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
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
Increase flow and performance and get that beautiful carbon look every time you open up your hood!
2X Entries For Our 25th Anniversary Sweepstakes!
Offers great strength and fatigue resistanve vs stock bolts, increasing clamping strength and preventing cylinder head lift and damage.
2X Entries For Our 25th Anniversary Sweepstakes!
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
07-20-2026
Full Frame Upgraded Twin Turbo Kit!
Unlock the true performance potential of your S58-powered BMW with the Dorch Engineering Flex Fuel ECA Kit.
Eliminate your restrictive OEM inlet pipes and increase airflow to your turbos
Free up your restrictive OPF/GPF system
For Vehicles With OPF (2020+)
For Cars with OPF/GPF Bypass Pipes
For Vehicles With Milltek OPF Bypass Components Installed (2020+)
Free up your restrictive OPF/GPF system
For Vehicles With OPF (2020+)
Add port injections with out the need for intake spacers with this plug and play kit