[Def]

It's pretty easy to do yourself. Just do all the maintenance on the engine beforehand and give yourself a weekend to do it(probably won't take that long). Engine hoist and load leveler that you can turn around and sell afterwards if you don't need 'em again.

I dyno'd my almost completely stock redtop SR20DET after installed, it was stock(SMIC, ECU, MAF etc.) except for a GReddy turbo outlet and downpipe, and 3" exhaust. Stock boost(8 psi with the exhaust) and it made 205 rwhp, 200 rwtq. Car weighed around 2560 lbs with half a tank of gas, and probably would have run a high 13 at the time. It was faster than my friend's '95 M3 that had full intake/MAF/exhaust mods(basically high 13 sec car at ~100-101 mph).

I put a MBC on it and ran about 11-12 psi on the SMIC and it felt like it picked up around 30 rwhp like that, but it'd definitely heat soak after a few pulls. It was still a fun ride then with every pretty stock.

I say do it. $9k might buy you a really high mileage '02 WRX or something, but that car is mid 14's with a hard launch, and the transmission could asplode at any point in time. You're looking at maybe a grand to bump up the power, and IMO they are boring to drive anywhere close to stock.