STi v3/v4 intercooler, is it more efficient than the WRX item?
There is no difference in size between the sti and wrx item, however there is only marginal gain to be had from using the sti intercooler over the wrx one due to the better flow rate of the sti item.
If you really want to change the intercooler, it would be worth changing to the sti 8 tmic, this is much larger and more efficient than the earlier intercoolers.
banny
If you really want to change the intercooler, it would be worth changing to the sti 8 tmic, this is much larger and more efficient than the earlier intercoolers.
banny
All the info you need to do this on your car is here 
https://www.scoobynet.com/projects-4...tml?showfull=1
Banny

https://www.scoobynet.com/projects-4...tml?showfull=1
Banny
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