I dont have either of these but... I think in your case, cuz I know you autox your car that I think it would be a toss up. The ECU will give you a higher rev limiter and take away the speed limiter (not needed for autox) on the other hand the pullies are less expensive and will gige a lil more power.
This is for your 200 right, not the "new" classic?
Pulleys are cheaper and give more HP. If you had JWT cams I'd say get the ECU, or if you drag raced a lot i'd say get the ECU. Otherwise, pulleys.
Of course, I dont have the ECU yet, so take my recommendations with that in mind.
I already have a tach. The one that came with the car.
I have thougt about suspension bushings, but since my car only has 37k, I don't think they are worn out yet. I'm helping someone put a motor and bushings in a '91 SE-R soon, so I'll see how much of a bitch it is and what the cost is.
Brian is right, if you want autocross speed tweak the suspension. Rear sway bar, i recommend coil overs with a high rear spring rate *for rotation* since b14s are real pushers.
For motor mods...by all means go with the JWT ECU...the B14s respond SO MUCH BETTER to the JWT program. I was absolutely getting dusted by my buddies b13 (PAt G.) once i added the JWT ECU i was all over him. Then i added the pulleys and low and behold i have a fender on him last time we raced.
I already have a rear sway bar, front and rear STBs, PK/AGX springs and shocks. I would go with coilovers, but since most of my driving is interstate, I don't want a rough ride. This is my only car too. Maybe Santa will bring me an ECU this year. I've been a good boy.
Coilovers don't ride any worse than PRO KIts, Pat G had Pro Kits and KYBs and after we pu this coilovers onthe car actually rode a little better. It didn't bottom out and kept its ride hide with more than one person in the car.
My car rides pretty well too, its my daily driver, the wife even accepts the ride with 325f/450r GCs with AGXs...I suppose since you have all your suspension stuff already thought there's no need to get crazy...