ARP 155-5201 Main Bolt Kit for BB FORD 390-428 ymm_31 This ECE type-approved exhaust system

This ECE type-approved exhaust system is constructed entirely from high-grade titanium and features an exhaust valve with a housing cast in the in-house foundry

and remapping the ECU is mandatory when it is fitted

delivering a true sporty tone especially in the middle and upper rpm range but without any droning

ARP® was established back in 1968 by Gary Holzapfel who was passionate about creating reliable fasteners for the automotive industry

digital LED display and sweeping LED “needle” that changes colors as AFR changes from rich to lean

ARP 155-5201 Main Bolt Kit for BB FORD 390-428 ymm_31 This ECE type-approved exhaust systemSpecifications Socket Size(s) 9 16 12pt