I'm not sure I'd agree with this statement.Originally Posted by Sinister
A proper 18G setup with supporting modifications would be pretty potent on the 2.5L, without the significant risk of grenading the motor. It requires significantly more modifications, but you can resell them when you part the car back to stock to recoup most of the costs. It's tough to justify that for people with VFXX turbos stock (going less than a 20G is a waste), but from the TD04, it's a great upgrade.
The cheapest aftermarket TMIC worth a damn is the TurboXS. Personally, I'd look for a ProcessWest or ETS one instead, if you're going to spend the money. If you're not willing to drop $600+ on a new TMIC, you're limited to the STI TMIC, which is only a mild upgrade (I wouldn't pay over $200 for one used).Originally Posted by Dirty Bucket