Parts for your 2009 Subaru Exiga-Exhaust gasket

2009 Subaru Exiga exhaust gasket — what it does, and when to replace it

Based on Subaru’s factory literature for the YA-chassis Exiga — including the Subaru Global Service Information (FSM) and the Subaru FAST electronic parts catalogue — the 2009 Subaru Exiga does use multiple exhaust gaskets. These appear at the cylinder head to exhaust manifold, manifold to front pipe (spring-bolt “donut” gasket), intermediate flange joints, and, on GT turbo variants, at the turbo outlet to downpipe. So an exhaust gasket is absolutely relevant to this model.

On the 2009 Exiga, exhaust gaskets are the quiet achievers: they seal hot gases at every joint so the system stays leak-free, quiet, and emissions-friendly. They help keep oxygen sensor readings stable, preserve catalyst performance, and, on turbo models, protect spool and response by preventing boost and energy loss at the turbo flange. Materials range from multi-layer steel at the manifold to graphite/metal crush or fire-ring “donut” gaskets further downstream, chosen to handle heat cycles, movement, and vibration.

During servicing, a workshop will typically inspect for leaks, soot tracks, or a ticking note on cold start. Any time a joint is undone — say, to replace a muffler, front pipe, or turbo/downpipe — new gaskets should go in. That’s because used gaskets rarely reseal properly once compressed and heat-cycled. Correct torque, even tightening across flanges, and clean mating faces matter, the FSM specs should be followed rather than “by feel”. Spring bolts and studs that are corroded or stretched are worth replacing at the same time to keep clamping force consistent.

• Common gasket locations on a 2009 Exiga:
  • Cylinder head to exhaust manifold (MLS gasket)
  • Manifold/front pipe “donut” gasket with spring bolts
  • Centre and rear pipe flange gaskets
  • Turbo outlet to downpipe (GT models)
• Signs a gasket needs attention:
  • Tapping/ticking noise at cold start that softens warm
  • Exhaust odour in the engine bay or underfloor area
  • Soot marks around a flange or joint, or a droning note under load

For Aussie and Kiwi conditions — lots of short trips, coastal corrosion, and heat soak — periodic inspection (every service or 10–15,000 km) is smart. Quality OEM-equivalent gaskets are recommended, cheap ones can crush or burn out early. A light anti-seize on studs and nuts (kept off sealing faces and O2 sensors) helps future serviceability. If the Exiga is a turbo GT, insist on the correct metal crush gasket at the turbo outlet and verify flange flatness to protect spool and minimise leaks.

Popular questions about 2009 Subaru Exiga exhaust gaskets

Does a 2009 Subaru Exiga have exhaust gaskets?
Yes. The FSM and Subaru FAST EPC show multiple gaskets: manifold-to-head, donut gasket at the front pipe, downstream flange gaskets, and a turbo outlet gasket on GT variants. They’re critical for sealing, noise control, and emissions.

What are the symptoms of a blown exhaust gasket?
Owners often notice a sharp ticking on cold start, a whiff of exhaust near the engine bay or under the floor, soot around a joint, or a raspy/drone note under load. Left alone, leaks can skew O2 readings and stress nearby components.

How often should exhaust gaskets be replaced?
They’re usually replaced when a joint is disturbed or if a leak is present. For routine servicing, have them inspected every visit. In coastal or high-kilometre use, expect to replace donut and flange gaskets sooner, especially if hardware is rusty.