XJR (X308) V8-4.0L SC (AJ26) (1998)
8. Remove the downpipe catalytic converter.
Remove the bolts which secure the downpipe lower mounting bracket.
Remove the downpipe assembly.
9. Remove gasket from the manifold flange.
Clean and inspect the manifold joint faces.
Clean and inspect the threads on the downpipe studs.
Installation
1. Fit a new gasket to the manifold mating flange on the downpipe.
2. Fit the downpipe catalytic converter.
Fit the downpipe assembly to the manifold.
Fit, but do not fully tighten, the mounting bracket securing bolts. (Leave loose until the nuts securing the downpipe to the exhaust manifold are
fitted.)
3. Lower the ramp.