wouldn't it be better to have a 76mm y pipe than a 70mm y pipe when the stock one is already 70mm? So basically the tanabe would flow just about the same as the stock one but just lighter. Is it worth 400, lol ??

 

The info I have says stock is 65mm (about 2.5")

So the Tanabe is closer than most others, but still no direct match to OEM.
It matches their own system, which is 70mm.

 

Funny, I just installed the Tanabe y-pipe this afternoon and I came here looking for someone that may have dyno'ed it.. anyway, I've only driven on it about 10 miles, but right away I noticed its much more responsive in gear and a lot more free revving out of gear.. I also noticed that it does pull it little bit better in 3rd gear.. and if you ever drive a 5AT, you'd probably notice 3rd gear just didnt feel right.. it didnt add much to the exhaust volume (I'm still using the stock midpipe and an HKS muffler) which was a relief for me.. although the exhaust tone seems to be a little tiny bit deeper, or "healthier" if that makes sense, nice though.. and just comparing it to the stock y-pipe, it makes me feel a lot better knowing I replaced it..

It came with all the necessary hardware and gaskets and a tanabe catalog stuck to the box, bolted right up, no fitment or alignment issues.. on a lift, it took about 10 minutes to replace..

I had originally ordered the Gruppe-S y-pipe because it was cheaper and supposedly a copy of the Fujitsubo, but they never seem to have them in stock and dont really seem to care.. but I'm glad I ended up with the Tanabe.. its seems to be a much better design

 

Here's it out of the box:

 

Always thought stock was 65MM tubing and 70 MM at the flange. Never really saw anything to verify that. Since Tanabe and Kinetix were sizing their Y's smaller, thought it was to mate with stock. The svc manual doesn't show diameter, just torque. Where have you found the 65MM listing? In a manual or did someone measure it?

Thanks

 

I just replaced my y-pipe with the Megan model. The outlet is 3in. I did measure the stock y-pipe outlet and it measured 2.5in.

 

Thanks for jumping in....
Same for me I measured mine as well; 2.5 = 65mm

 

Have you felt a difference in your low-end? I am specifically afraid of losing low-end torque.

 

im interested in this y pipe, i hope there is no rasp with Crawford HF Cats, ALphawerks Headers, Tanabe Y Pipe, and stock exhaust.

If there is a rasp im thinking the Fujitsubo would work great to eliminate it, but then i would be scared it might get too loud.