Where can i get a catalyst for toyota hiace 2008 1kd turbo and at what cost?

1. Africa "?
2. NO CAR TOLD 2015 (GDx) X= 6= CYLINDERS.
3. NO YEAR CAR TOLD
4. IS ENGINE TURBO, AS SOME ARE,AND MATTERS.
5. COMMON RAIL DIESEL SURE.
6. Global Diesel Six Cylinder?
7. ENGINE CODE : 2GD-FTV 2015- 2.4 L (2.393 cc) INLINE 6
   

MUST WE GUESS THIS?????????
THE WIKI LIST ON 1GD OR 2 GD.

Applications

Hino 200[14][12]
Toyota Coaster (B70) (2022-present)
Toyota Dyna[11]
Toyota HiAce (H200) (2018-present)[15]
Toyota HiAce (H300) (2019-present)[16]
Toyota Hilux (AN120/AN130) (2015-present)[17]
Toyota Innova (AN140) (2016-present)[18]
Toyota Land Cruiser Prado (J150) (2015-present)[17]
Toyota Fortuner (AN150) (2015-present)[19]
Toyota GranAce/Majesty (H300) (2019-present)[20]
Yanmar 4LV (marinized version of 1GD-FTV)[21][22][23][24][25][26]
Thairung Transformer II

have scanned for error code

Save the diagnostic checks until there is noting else to physically check, look at or adjust. Best practice is hands on - first!

Try checking the turbo boost pressure.
Check for restricted exhaust, especially if fitted with a particulate filter.
Check the operation of the egr valve.
Check all vacuum connections and pipes...

Yes,sir,you can sell the old one,My 85 Nissan 720 4x4 cat got clogged,caused my head gasket to blow,I cut it off,sold it for 50 bucks and ran a straight pipe their,now I have more horsepower and get better mileage.Here's a video of my truck. 85 Nissan 720 4x4 2 4 Weber conversion

Federal law prohibits modifying emission components for street use.

get a tuneup.
or scan it for loose of closed loop operation, (USA CARS)
at idle
at flat ground cruise, right foot steady.
if CLose loop fails we fix that first. ask.

if both engines are in good condition, with the same driver, I would say that the diesel would have better mileage especially for highway travel. You may maximize this further if you utilize the turbo, meaning relying more on the turbo rather pressing the throttle.

Have you quick tested it for codes? how is the fuel pressure?, has the filter ever been changed?