The ASM looks better because the rounded corners of the vent openings flow with the rest of the body. The sharp angles of the vent openings on the OEM bumper don't flow.

I like the shaved trunk on the ASM, and your exhaust. Your spoiler looks much better than the 3rd brake light. I like the single exhaust cut-outs on the first two rears, but the third pic looks like crap with two holes and one exhaust. That diffusor looks out-of-place with the OEM rear. It might look better on your car, but I think it should be on a full-out track car.

That's my opinion. Probably offended everyone.

-Pete

 

AP2 rear with TS Diffuser...

 

asm w/ ts diffuser gots my vote.

 

This explains my sentiments exactly. Nowhere on the S2000 do you find extremely sharp edges or points. This perspective has nothing to do with any brand name as another person suggested.

 

If I was planning on keeping my car then I would be going with the ASM rear, I think it looks so damn clean! I think your oem rear looks really close to that though, and it looks good as is. The TS rear is nice too, but the quality doesn't justify the price tag IMO. I would just keep your oem rear, but the TS diffuser would look good too.... I guess my opinion is no help.

 

I really like the ASM

 

ASM for sure.

 

Ive always loved the cutouts from WyattH. Which is why Im doing the same to mine. With my Js diff.

 

Is there a choice for neither? I like the AP2 rear just fine. Better yet, I like any of them from here better:
https://www.s2ki.com/forums/index.php?showtopic=454427

 

Seriously just get the TS Diffuser since you already did the cut out on your OEM bumper