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The COBB catback exhaust for the WRX & STI does not deviate from the factory emissions equipment and conforms to the SAE dictated 95-decibel exhaust noise level limit enforced by California
and requiring outstanding oil film resistance at very high temperature
On board calibration storage
*Never reuse a rear main seal on a new short block
The 6061 extruded billet aluminum brace reduces firewall flex for a more positive pedal feel
Kelford Adjustable Single Cam Gear 4G63 Forced Induction>Turbochargers The COBB catback exhaust forToyota 1JZ 2JZ Cam gears have been CNC machined from highest quality 6061 T6 aluminium to more precise tolerances than original OEM gears. The tooth edges have been bevelled to increase belt life and then hard anodised to ensure strength and longevity. Precise degree markings are then laser etched onto the cam gear to assist in the tuning of engines. To finish we have used high quality fasteners and a heli coil thread insert in the ring gear to allow
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