So the time has come to replace my exhaust manifold/cat for inspection. Bought a magnaflow (P/N: 50605) but it didnt fit, even though the site says it does. The problem was due to the design of the piece that bolts on the engine, as it is too wide for the space provided.
I have checked on other sites, and Walker seems like a good option, but the only one that looks remotely similar to what I have on my car shows up as an AWD model header. Would that be fine to roll with? Or is there some other brand you guys recommend I throw on this guy?

My model is an 07 IS250 RWD.

Thanks!

 

OEM stuff is hard to beat. IIRC the 250/350 are the same part for RWD. AWD is a no go.
Perhaps find a low mileage wrecked car and replace with OEM from a salvage yard?

 

Took me a bit, but finally got an update. Ended up going with a wrecked IS Cat after getting quoted for $1400 for a brand new part from dealer. So far it is working like a charm. Will be doing inspection soon.
thanks for your help!

 

How many miles on this and did some other system fail that killed the cat? Usually these last well over 200,000 mi without issue.