Here are some pics. I'll take better ones later but right now it's up against a wall so can't really get a "normal" pic but I get what you want. I'll do it later today.

I considered it. But honestly I think the back pressure from the stock y-pipes restrictive nature is an "okay" thing. The car pulls like a freight train. The exhaust is for sure Butt-Dyno approved. At the lower end she acts like a quick little stock G and at the top end it feels like it picks up much quicker. For now I'm going to leave it as it sits.


Next is a slight drop on some swift or eibach springs. That should help it fit in nicer as far as over all looks.

 

Those narrow pipes probably help mid-range torque but does nothing good for peak power. Luckily, our MAF-equipped intake can deal with some fairly significant mass-flow changes with the factory maps. My car runs well with the ARK Grip and I didn't even reset the ECU.

 

So, can anyone confirm the stock Y Pipe diameter? (the one before the mufflers) I thought the thing was 2.25". I got a section of 2.25" pipe and it looks way freaking bigger than my y pipe section.

The plan is to cut out the stock resonators and just weld a straight pipe in place, to go along with my Tanabes.

 

The stock y pipe on the sedan is about 1.8" internal diameter. The HR y pipe is about 1.9"...It's the largest OEM y pipe I found aside from the nismo one which I believe is 2.5" from the factory. I wish someone made a 2.25" version.

 

Keep in mind that once you lower your car you are going to be bottoming out that muffler and tip all the time. I ended up having the 4" tips cut-off my Tanabe muffler and went with a quad tip set-up because I was tired of constantly dragging those big tips over almost every parking lot and driveway entrance and exit.

 

Exactly!


Yes, seems that way, doesn't it?!?

 

Yeah perhaps. I'm happy with how it sounds and runs.

See one page back. I posted photos of my setup which is exactly what you are planning.

That is a great point. I had a slammed SC300 with this same muffler and it only ever bottomed out once and it was my own fault for reversing too quickly. My routine does not involve any tricky drive ways and its really only a highway car so hopefully it doesn't become a major issue for me.

 

I found this picture which shows what i'm doing (except i'm just putting a pipe, not a resonator. I can see the pipe gets bigger at the ends. So does it turn into 2.25"?

 

Just got my Top Speed Exhaust in for my sedan. My question is did everyone use the supplied hardware and gaskets or did they use something "better"? I'm getting it installed in a few weeks and I wanna make sure its done right the first time with no leaks or anything.

 

I used all the supplied stuff, and while its not the absolute top shelf stuff, it more than does the job. Had my TopSpeed for over half a year now, no leaks, no issues.

 

Have some pretty good news for the AWD guys... Motordyne has started to produce the Shockwave exhaust for AWD G37s! Along with Motordyne ART pipes for AWD.

Motordyne will also be creating ART pipes with a catalyst... So the awesomeness off ART pipes, but you'll pass emissions! Should be released within the next week or so.

 

Those are going to be a game changer! Can't wait to see the final products.

 

Yea this changes things...one of the reasons FI was the front runner for me was due to the fitment issue with motordyne.

 

i have a bunch more on my page (one full motordyne)
https://www.youtube.com/user/da1nOnlyToXIc/videos

 

Just went through your page yesterday Tox ha ha. My only concern is the volume of the Motordyne. From my understanding, FI is a bit deeper but more subtle. I see you're in a neighborhood in the vid, any neighbor complaints?