FS: Motordyne Sedan VQ exhaust with Resonated XYZ
Joined: Mar 2009
Posts: 18,299
Likes: 1,488
From: By the sea, Tx
G35 sedan w/ too much money in mods
Motordyne Sedan VQ exhaust with Resonated XYZ
Hahahahahaha made you look. 
Sorry for the holiday deception, I just felt a little giddy from all the food yesterday. Cruel, maybe. Funny, oh hell yeah!!
And NO, it's not for sale, it's the prototype for crying out loud. Luv ya, mean it!!
Sorry for the holiday deception, I just felt a little giddy from all the food yesterday. Cruel, maybe. Funny, oh hell yeah!!
And NO, it's not for sale, it's the prototype for crying out loud. Luv ya, mean it!!
Joined: Mar 2009
Posts: 18,299
Likes: 1,488
From: By the sea, Tx
G35 sedan w/ too much money in mods
I got your pictures hanging lolololol
Should serve as verification of ownership hahahahahahahahaha
Should serve as verification of ownership hahahahahahahahaha
Update 08/09
Purchased the prototype Motordyne VQ twin tip axleback, MD straight mid pipe, and a MD resonated XYZ pipe. The muffler's not going to win any beauty contests but dam it sounds good and I'm enjoying the gains. I need to get back to UpRev for a reflash.
Here's a video after installation. It sounds great, but might still be a little loud for me.
Purchased the prototype Motordyne VQ twin tip axleback, MD straight mid pipe, and a MD resonated XYZ pipe. The muffler's not going to win any beauty contests but dam it sounds good and I'm enjoying the gains. I need to get back to UpRev for a reflash.
Here's a video after installation. It sounds great, but might still be a little loud for me.
Joined: Mar 2009
Posts: 18,299
Likes: 1,488
From: By the sea, Tx
G35 sedan w/ too much money in mods
Then this happened:
Update 08/16
Traded my MD straight mid with r1forever80 for a resonated mid. I'm now running 2 resonators and the car sounds perfect for me. Absolutely no drone anywhere in the power band, very quiet when cruising, and the sound is melodic, tight, and exotic. My car now sounds like a coupe on steroids, that's the best analogy I can think of to describe the sound. I'll update with a vid in the next couple of days.
The other impressive gain was the power. The power band has definitely shifted and I lost a touch of grunt in the low end. But the car pulls like mad in the upper RPMs, at 100 MPH she feels like she's just getting going. Man I need some ART pipes now.
Traded my MD straight mid with r1forever80 for a resonated mid. I'm now running 2 resonators and the car sounds perfect for me. Absolutely no drone anywhere in the power band, very quiet when cruising, and the sound is melodic, tight, and exotic. My car now sounds like a coupe on steroids, that's the best analogy I can think of to describe the sound. I'll update with a vid in the next couple of days.
The other impressive gain was the power. The power band has definitely shifted and I lost a touch of grunt in the low end. But the car pulls like mad in the upper RPMs, at 100 MPH she feels like she's just getting going. Man I need some ART pipes now.
Joined: Mar 2009
Posts: 18,299
Likes: 1,488
From: By the sea, Tx
G35 sedan w/ too much money in mods
Then this:
Update 08/23
Went to the muffler shop today and had them adjust the hangars to tuck the mid and axleback 3/4" higher up under the car. Tips look much better and I got that much more clearance for the mid back. Beware, Droid pics:
A coupe more pics and I'll add a video when it finishes uploading. There's a little rattling in the video that wasn't there this morning so I've got to find out where it's coming from. Exhaust sounds damn good though!
Went to the muffler shop today and had them adjust the hangars to tuck the mid and axleback 3/4" higher up under the car. Tips look much better and I got that much more clearance for the mid back. Beware, Droid pics:
A coupe more pics and I'll add a video when it finishes uploading. There's a little rattling in the video that wasn't there this morning so I've got to find out where it's coming from. Exhaust sounds damn good though!
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Joined: Mar 2009
Posts: 18,299
Likes: 1,488
From: By the sea, Tx
G35 sedan w/ too much money in mods
And finally this:
Update from 10/7 (previously posted in the Exhaust section)
Damn I posted the update with pics while I was at UpRev this afternoon, don't know where it went?
Any hoo, here's the skinny. I'm happy to report that fitment is not an issue with the V2.1s. I had about an inch of clearance between the resonators and the AT pan. And the cat brace Peter mentioned fit like a glove, not sure what the issue was with his car. Here are some pics from beginning to end of install. I'm too tired to edit them so the quality's not great but you'll get the idea.
Stock cats out, driver's side ART going in
Show more
Driver side installed-note it even clears the small clip for the O2 sensor wire
Show more
Closer pic of driver's side
Show more
Passenger side going in
Show more
Passenger side being tightened down
Show more
Passenger side in
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All bolted up to the XYZ
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Cat bracket about to be bolted up to the ARTs
Show more
And now the results, I'm a little disappointed but I had Omar re-tune the car, he's very experienced and I trust him completely. I ended up with only a 5 HP/TQ gain at peak but around 10/10 throughout the 2-5K rpm range. So final peak numbers are 257/237. Omar worked on the tune for over 2 hours and ended up having to play with the cam phasing which is where I finally got over the initial loss. First 3 pulls showed a loss of 5/5 which I was really surprised at. Jared, the lead tuner at UpRev, also tweaked it a little and I called Church's in SoCal to seek their advice. There are no leaks in the system so it is what it is. Overall full bolt on MD from the headers back gave me a 15/12 gain over what it had been with stock cats and my Frankenstein'd stock exhaust so I'm happy with that. The tone of the exhaust got noticeably deeper, it's starting to not sound like a V6 but still has the sweet VQ warble. And the overall volume got significantly louder, car sounds plain mean when I get on it. But, when I'm cruising at 60 with no load on the motor it's completely silent.
So overall I'm really happy with the end result, just surprised that removing the stock cats didn't free up more power. The car is definitely faster from 1500 RPMs up, but I didn't get back the low end grunt I lost with the 3" exhaust piping. The sound is magic when driving with the windows down, I've had a big grin all evening. The exhaust smell isn't any more prevalant than it was with the exhaust installed, and me being an old school muscle car guy, I actually like the smell.
I'm uploading a vid of one pull on the dyno and will add it to this post when it's finished. I need to get one off the dyno, the roller made a lot of noise. So if you're contemplating this mod, it definitely gets the Blue Dream seal of approval, it's well worth the money!!
Video
Damn I posted the update with pics while I was at UpRev this afternoon, don't know where it went?
Any hoo, here's the skinny. I'm happy to report that fitment is not an issue with the V2.1s. I had about an inch of clearance between the resonators and the AT pan. And the cat brace Peter mentioned fit like a glove, not sure what the issue was with his car. Here are some pics from beginning to end of install. I'm too tired to edit them so the quality's not great but you'll get the idea.
Stock cats out, driver's side ART going in
Show moreDriver side installed-note it even clears the small clip for the O2 sensor wire
Show moreCloser pic of driver's side
Show morePassenger side going in
Show morePassenger side being tightened down
Show morePassenger side in
Show moreAll bolted up to the XYZ
Show moreCat bracket about to be bolted up to the ARTs
Show moreAnd now the results, I'm a little disappointed but I had Omar re-tune the car, he's very experienced and I trust him completely. I ended up with only a 5 HP/TQ gain at peak but around 10/10 throughout the 2-5K rpm range. So final peak numbers are 257/237. Omar worked on the tune for over 2 hours and ended up having to play with the cam phasing which is where I finally got over the initial loss. First 3 pulls showed a loss of 5/5 which I was really surprised at. Jared, the lead tuner at UpRev, also tweaked it a little and I called Church's in SoCal to seek their advice. There are no leaks in the system so it is what it is. Overall full bolt on MD from the headers back gave me a 15/12 gain over what it had been with stock cats and my Frankenstein'd stock exhaust so I'm happy with that. The tone of the exhaust got noticeably deeper, it's starting to not sound like a V6 but still has the sweet VQ warble. And the overall volume got significantly louder, car sounds plain mean when I get on it.
But, when I'm cruising at 60 with no load on the motor it's completely silent. So overall I'm really happy with the end result, just surprised that removing the stock cats didn't free up more power. The car is definitely faster from 1500 RPMs up, but I didn't get back the low end grunt I lost with the 3" exhaust piping. The sound is magic when driving with the windows down, I've had a big grin all evening. The exhaust smell isn't any more prevalant than it was with the exhaust installed, and me being an old school muscle car guy, I actually like the smell.
I'm uploading a vid of one pull on the dyno and will add it to this post when it's finished. I need to get one off the dyno, the roller made a lot of noise. So if you're contemplating this mod, it definitely gets the Blue Dream seal of approval, it's well worth the money!!
Video
Joined: Mar 2009
Posts: 18,299
Likes: 1,488
From: By the sea, Tx
G35 sedan w/ too much money in mods
Hell I thought you died or something lolol.....
Good to see you at least lurking in the shadows.
Good to see you at least lurking in the shadows.