Read these installation instructions before starting:
• It is best to work on a “cold” car. Removal of the securing nuts may be very
difficult on a “warm” car.
• Place the front of the car on jack stands. Never work on a car supported
only by a floor jack.
• We highly recommend the use of anti-sieze material on all exhaust system
threaded fasteners before re-assembly. However, us a minimal amount on the
oxygen senors threads to avoid contaminating the sensor element.
Removal Process
1. If equipped, remove the passenger side and center portions of the strut
tower brace.
2. Remove the upper and middle (accessed from below shield) retaining bolts
from the chassis-mounted exhaust heat shield. Remove the heat shield.
3. Remove the five (5) bolts that retain the upper exhaust manifold heat
shield to the engine, then remove the heat shield. Remove the bolt that retains
the lower heat shield, then remove the shield. (These two components will
not be reused after the installation of the header.) See FIG A.
4. Loosen the radiator cap to relieve pressure. Disconnect the heater hose
as shown in FIG B.
5. Hook the end of the heater hose behind the aluminum air conditioning
hose tube to allow additional access for the removal of the exhaust manifold.
Remove the nut that retains the passenger side end of the heater tube bracket
to the firewall. See FIG C.
6. Remove the two (2) bolts that retain the coolant line from above the
exhaust manifold. See FIG D.
I56010
Figure A - Remove the upper and lower heat shields.
Figure B - Remove the heater hose.
Figure D - Remove the coolant line retaining bolts.
Figure C - Wrap the end of the flexible heater hose behind
the aluminum tube to hold it clear of the area above the
exhaust manifold. Remove the nut that secures the alumi-
num tube bracket to the firewall.
MX-5 Miata Header
Part No. 56010
Installation Instructions
