2021 Supra 3.0 EU spec with OPF delete pipe

bigcat

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This is for EU spec Supra owners

Our Supra has OPF aka GPF blocks the exhaust a lot and kill the sounds, downpipe mod can bring it back like just 20%.
Usually we mod the link pipe to remove the OPF but it will trigger CEL time to time and turn your car into limp mode.

Unfortunately the cars with locked ECU cannot easily do ECU flash tuning so far to turn the OPF detection off, and piggyback solution cannot help it.
Before spending a lot of money and time on it, I have an easy solution:

Step 1. Cut the OPF and replace it by OPF delete pipe (Y pipe)
OPF delete pipe.jpg


Step 2. Coding with ISTA to turn off OPF detection (somehow the OPF flag affects the pops and bangs)

Then you will get the genuine sounds back:

BTW, you save about 3kg!
OPFweight.jpg

 
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QLion

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cant tune my supra yet, can i still cut off my GPF without running into limp mode?
 
OP
OP
bigcat

bigcat

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cant tune my supra yet, can i still cut off my GPF without running into limp mode?
Yes you can.
Just find someone to disable the OPF detection.
 

 
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