So 2600 dollars in mods for an FRS gets you

UNKNOWN_370

Honestly, I havent seen a Z with that much work in it. People either go with suspension, basic breathing mods & tune. Turbo, exhaust & tune. I don't see to many people going through extensive forgings and overhauls of the VQHR.

There's still a big gap & mystery as to what the VQ can really do. Everything is so fu**in expensive for the Z that you can buy 4 Z's if you pay the amount of money necessary to mod the Z properly.
As much as I love this car, non-F.I. 4 and 6 engines are pretty useless when you want to extract power. NA v8 is the best way to go if you expect big gains with breathing mods. Other than that. V6's and four bangers is a money pit of useless power gains without FI.

The best the FR-S is going to get on breathers n a tune is 14.5 second quarters if lucky. The best the Z will do is 12.6 if lucky? V8's you can see low 12, high 11 on breathing mods alone.
That said... I'm definitely going back to a turbo vehicle soon. I miss my FD.