String Theory Garage will be closed to the public from Wednesday, 29th July to Thursday, 6th August for our annual shutdown.
If you need to get in touch, please leave us a voicemail or send an email. Our team will happily get back to you when we return on Friday, 7th August.
Shopping online? Don't worry! Our online store will remain active! We hope to ship orders placed for in-stock items as normal during the shutdown. Anything else will be dealt with upon our return.
Thank you for your understanding, String Theory Garage Team
This product is constructed fromhigh-grade austenitic stainless steeland weighs just 8.09 kg, 22% lighter than stock. Aunique tuned resonatorhas been developed for the link pipe to work with the new engine to supply aunique sound experience, producing a deep, rich, and sporty sound with no unwanted drone or streaming, perfectly aligned with a pure straight six-cylinder engine.Powerisincreasedby 8.7 kW (11.8 hp) at 5,600 rpm and torque rises by 17.1 Nm at 4,100 rpm when tested on the Akrapovič dyno with a Slip-On Line with Link Pipe Set against a standard stock exhaust on the BMW M440i. Meant for track use only and for OPF vehicles, remapping is mandatory with this product.
Fitment notice:This product fits the BMW M340i and M440i equipped with an OPF.
THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.