ARP M8 x 1.25 x 16 12pt Stainless Steel Bolts (Set of 5) 2004-mazda-6-esi6428053 The hat is made from

The hat is made from 6061-T6 aluminum and coated in a black anodize finish

Using a wideband air/fuel controller during the tuning process allows you to monitor AFR and adjust tuning parameters to optimize them for maximum power and efficiency

Carbon Fibre Inlet Tubes: Smooth internal surfaces with integrated breather attachments facilitate efficient airflow to the throttle bodies

The benefits iof this kit over the S5 Kit is the reduced wind noise from the fine slotted USR series rotors

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ARP M8 x 1.25 x 16 12pt Stainless Steel Bolts (Set of 5) 2004-mazda-6-esi6428053 The hat is made fromARP M8 x 1. 25 x 16 12pt Stainless Steel Bolts (Set of 5)