leetdrv

I have both mount is hand, 20370AG00A (GT), 20370AG000 (Spec B). I cant tell the difference.

They look identical.

I'm hoping to find a torque converter in San Francisco, Northern Nevada, Los Angeles area or anywhere in between.

2005-2007 Legacy GT or Outback XT

Thanks!

SOA parts catalog and local dealers have the same part numbers for GT and SpecB front top hats also.

We know they are different.

Other online sellers of Subaru parts list different part numbers as stated above.

I'm just gonna order 20370AG000 and be done.

I'll report when I take everything apart.

Max, thanks for looking into it!

I'm getting a spec b suspension together and ordering parts.

I'm aware that the shocks and the front top hats are different than the typical Legacy GT.

There question is, are the rear top hats different?

Thanks!

The part numbers are different 20370AG00A (GT), 20370AG000 (Spec B)

Is there also a difference comparing them side by side?

How about the Cobb 524220?

is 524212 an older version, O2 before the cat?

Is there a downpipe with 2 o2 bungs available for the automatic 05-09?

Thanks!

the car starts and runs, just doesn’t run the way it’s supposed to.

Your ECU is fine. If your ECU was bad, the car would not run at all or ran very poorly. There would be visible damage to the circuit board.

I've replaced and coded an ECU, you will need the same exact number. To code the ECU is a complex process on its own...

All I can tell you that the front LCA bushings are identical between BL/BP and 08+ WRX, so that cross member is not ruled out yet...

2007 and older WRX/Forester are different. 2nd gen Legacy is also different.

Crank triggers patterns are different between 5EAT and MT cars so make sure you have the correct pulley for the ecu you are using

please explain. All pulleys are identical between 5EAT and MT

I am intrigued by this idea of swapping the OBXT motor into a manual LGT that's blown. Leetdrv, can you elaborate on that a bit more?

There is no catch. The engine and all accessories are identical between the 5EAT OBTX and Manual LGT, only difference is the wiring harness under the intake manifold, cuz the AT wiring has different plugs for the transmission.

The wiring harness is somewhat attached to the manifold and its easiest to keep them together. You will be installing the LGT wiring + manifold onto the OBXT engine. The other parts you will need from the LGT is the flywheel and clutch. That's it. Very easy swap.

it was station wagon chassis with standard 6sp manual, but chassis probably doesn't matter; it is possible the old harness was also swapped over, but the original ecu was retained. now that i think about it it is possible he swapped over some sensors, but i was mostly attentive to cross member compatibility between fa/fb and ej, which in a nutshell retains all compatiblity across all models with the exception of 5th gen legacy ejs due to the oil pan (actually not sure of legacy fb versions, but all impreza/crosstrek/forester fbs seem to retain)

 

i would normally raise a question to due 25 vs 20 displacement, but possibly ecu is blind to it

BL/BP ECU is not capable of running the FA/FB engine. At minimum, the main wiring harness, ECU, BIU, gauge cluster and keys had to be swapped over...

The engine mounting / cross member is the easy part. The issue is the electronics and wiring.

wow that is a lot of feedback waiting for a new member

 

but anyway manual swaps are easy; just need a manual version of ecu for the new engine. from what i have heard, the ecu doesn't even need to be from an ej, as i know someone who did a drop in replacement with a fa20 on a 2014 wrx

I'd like to hear more info on this. What chassis was the engine installed in, which ECU?

just find a manual turbo legacy with blown engine and use the good engine from the OBXT, no VIN number or wiring issues.

if you really want to use the 09 NA 5MT chassis, and keep it manual you will need a manual donor car to extract the ECU and all related electronics from. Keep in mind that after the ECU swap the VIN in the ECU will not match the car, so you will have to address that before you smog it.

You will need to swap the entire car's wiring harness, under the dash, engine harness and so on with all computer modules and related components, gauge cluster, keys, etc. Then the transmission, engine and related parts.

If you need to smog the car, the VIN number in the ECU will need to be reprogrammed. If you decide to go the dealer route, you will need to purchase a new BIU, or get very creative with eprom programming.