3 pc cusco reinforcement bars(added weight but did nothing)
18" volk ce28s(light for 18's but poor offsets)
17" prodrive gc06ds(lugcentric so lugs wore out rim at the track)
b&btriflow exhaust(good torque but fitment not great since it melted my rear bumper)
spugen dual ti exhaust(could've been a bad batch but lost significant hp with heavy droning)
ricks full size windblocker(gets crushed when up going top down)
aem v1(hydrolocking worry)

 

Bad Mods
Rear Lower Tie Bar (Does Nothing)
Non OEM Tires
OEM Wind Screen Deflector (Between Seats)


Good Mods
Front X-Brace
Comptech CAI
Mugen Hardtop
Plenty of Extra OEM S02 Tires

 

The following is my opinion ONLY. You results may vary.

- Coastal Metals front lip splitter (wrong angle, looked goofy, needed modification to look right and work right).
- Denso Iridium IK-24 spark plugs (for F.I., started to miss after about a year).
- Airwalker "style" urethane lip (fit like crap).
- Brockway racing display (too big and bulky to be mounted for daily use).
- T1R test pipe (sounded good but made the car stink and made it smoke when run hard).
- Toda header (good product but waaay OVERpriced - also Toda will NOT honour any kind of warranty if defects show up).
- Spoon X-brace (didn't feel any difference whatsoever).

 

STB's. They look good... and that's it.

For those that said "heavy wheels" or the like need to mention that they are bad for performance, but good for bling. It's all in how you look at it. Then again, I've seen some that were not not good for either.

Another bad "bang-for-the-buck" is a fiberglass bumper for those that actually drive their car.

 

My only disappointing purchase (so far) is a set of eyelids. They look absolutely great from a distance but up close the "aftermarket add on" look is so bad I took them off.

 

You get what you pay for (most of the time). Everything I spent big money on was fantastic:

Mugen parts, OEM body stuff, Volks, TIRES

The less expensive things that actually worked pretty well:

Comptech/Koni Ground Control setup, Cusco front sway bar, Rick's floor mats, Muz Saddle bag, Spoon Shift Knob, Voodoo Shift Knob

Things that left more to be desired:

1. Wilwood 4 Piston BBK - by far the biggest problem I had on my car. Some people had great results, but I would not recommend them if your car is susceptible to abrupt temperature changes (cool rain on hot day).

2. Eyelids - I totally agree with Ravenwerk

3. Cusco 3 piece

4. Comptech Intake - great intake for the money when it isn't falling apart

5. Spugen Version 1 exhaust - they have since fixed it, but mine rusted like a SOB

6. OEM toneau cover - who the hell actually uses that thing

7. OEM car cover - maybe if you're afraid of dust getting on your garage queen

8. OEM floor mats - two sets fell apart on me


Considering the number of mods I had on my car, and number of mods I had at different times only having 8 regrets isn't bad - even though one of those regrets are brakes......they still functioned

 

Worst Bang For Buck:
- Tein CS Coilovers - nice coilovers, but went out after 20k miles
- Speed Rear Tie Bar - did nothing
- Speed X-Brace - 1st Gen before extended allen bolts - complete pain
- Volk GTP's - non-s2000 offset


Best Bang For Buck :
- Comptech Supercharger
- AEM EMS
- OEM Hardtop
- Digrapa X-Brace
- Ricks Single Outlet Rear Valence

 

well Not on my s2k since i havn;t put anything on it that i have bought yet. But on my wrx
!. tein flex's with edfc HATED THEM way to stiff the edfc woud wrap its self all aournd junk haha
2.s-03's big $$$ for sliding all around
3. I hade one of the only Monster Sport carbon trunks $1200 carbon trunk plus shipping and it fit liek shit.

i guess thats about it.