some pics of my J's 70RR that I ordered/installed in September of this year. Welds look a little cleaner than in the OP.

 

i work in a fab shop, those welds are horrendous op. really sad from js racing.

 

Looks good!

 

I'm not going to comment on the welds, it's more than clear what they are.
It's a bit puzzling as to why you'd keep buying product from a retailer that has let you down more than once.
I'm a Honda fan simply said, because it works, and works for a long time. It's not "American" per se, but not much is. I say that to let you know I can kinda get on board with buying stuff that's JDM (if it works). If JDM stuff is comparable to Honda in terms of quality, workmanship,longevity, and price point I'm on board. What consistently slows me down is price point for item received, and that's why I quoted the item above. Bent piping with a resonator, packing, tip, and flange does not make for a thousand plus dollar item IMHO. But if you're in it to support J's Racing, Mugen, Spoon, or what have you, then more power to you.
Does anyone remember Jordache, or Sassoon Jeans? They were way over priced jeans with designs on the pockets (a lot like jeans kids wear today). Sounds like JDM products across the board have a broad appeal (for whatever reason) like those jeans did back in the 80's.
Give me a product that works. I'd prefer a proven product that continues to live because its build quality, not its name. If its JDM, fine. If its Ebay, fine. BYS, Fine. It just needs to work, and fit the theme of the car, or fulfill the owners desire JDM or not.

 

it's not that the products really let me down it's just they always revise a product but it's kind of weird. The other products I was talking about was the J's intake, the scoop isn't as big as it used to be. It's not a big deal but I wanted the bigger scoop. The ETD I have, the j's racing stamp is on backwards then again the older version had a sticker. My oil cap is peeling just small stuff not like I buy J's racing stuff and it falls apart and I keep buying it.


But the diffrence in the Titanium version and the Steel versions were kind of disapointing.

 

Fast Forward 8 years later and it looks like quality hasn’t changed:

ordered my 60RS R304 and I receive this:

 

Very neat! Great looking exhaust!

 

Oooooof thats terrible!

So much undercut and numerous stops and starts. I'd be sending that back.

They didn't even bother cleaning the weld with a wire brush

 

That's one of the ugliest weld shouldn't be on such a big jdm brand parts.

 

Welcome to J’s Racing exhaust “quality”. Unsure why people still buy these when they can get their JDM single fix with Cleib or HKS.