Motordyne Shockwave E370 Exhaust
 

I've been researching exhausts for a few months now and I finally decided to make a decision. I went with the extremely pricey Motordyne E370 Shockwave. I PM'ed each vendor that sells it, and JM Auto Sports ended up giving me the best price. There was an issue with the one he had in stock, so he had Motordyne ship me a brand new one directly from them. So customer service over there is pretty good.

Installation

I don't have a lift and I knew trying to do this exhaust alone would be a PITA so I brought it to the shop that does all the work on my G and they said it would be $150 for the install, which was very worth it to me. I helped with the install and everything came off and went on smoothly with the exception of one thing. As he was tightening one of the clamps, the bolt sheered clean off. When I looked at it, I could see it wasn't a really strong clamp, as it wasn't even tightened that much yet. He replaced it with a stronger, more expensive clamp, and left the factory one on the other side.

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Broken Clamp

Sound:

Don't let anyone fool you and say this exhaust isn't loud. It SCREAMS at upper RPMs and it gurgles loudly down low. Past 3k it can be heard from 5 blocks away. I passed 3 cops on my way back from the shop and I found myself coasting past them in neutral and their heads still turned as I passed. It sounds like you're going a lot faster than you are when you're driving regularly, so I wouldn't be surprised if I got pulled over doing 35 in a 30 in 2nd gear.

Besides all the regular around town try-not-to-piss-off-my-neighbors, the exhaust is unbelievable. It's one of the best sounding exhaust I've ever heard, and it's such a unique sound that I've never heard out of a G. Cracking it open on the highway puts a smile on my face like never before. It has a slight F1 scream to it past 5k and I'm extra excited to get in my car every time I drive it.

All-in-all, I wanted something loud and I knew what I was getting myself into when I ordered it. If the Meisterschaft was a cat-back and wasn't so expensive, I would've jumped all over it. But for sub $2,000, I'm extremely happy with my purchase.

Performance:

I'm gonna be skeptical here and say that anything I feel performance-wise is a placebo. At most, I probably got 10 HP from it, which is hardly enough to make any difference. Like I said earlier, it FEELS like you're going a lot faster and accelerating harder because of the sound it makes. My heart beats way faster when I punch the gas now than with the stock exhaust. I didn't buy it for performance so it doesn't make much of a difference to me.

Now, here's what you've been waiting for...

Pictures:

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Video:

Infiniti G37S Motordyne E370 Exhaust Cold-start and Revving - YouTube

F1 screams, awesome. Never considered motordyne because I'm not sure they make any exhaust for the sedan yet.


Also, video no worky.

Yeah, they aren't too popular. ARK, Fast Intentions, and the like are much more popular, but I really like the sound it offers.

And thanks for the heads up, I fixed it.

I love the throaty sound. thanks for the vid

No problem, thanks :D

Did you pair it with any HFC's? Sounds beastly.

Nice review! I love my E370 too, frankly it's one of the best sounding exhausts I've ever heard. Adding ART pipes will make it sound the same from idle-3.5k, but it get even louder after that. It's insane.

Also, your differential bushing is ripped. You can see the fluid leaked down the differential. I'd recommend replacing that, you'll likely see a nice improvement :)

Love the sound!! Very nice!!

No, stuck with the stock cats, and thanks.

I know, it's amazing. And good catch, I was so infatuated with the exhaust that I didn't even notice that. Thanks.

Thanks!

On a scale from 1-10 how loud is just the catback?

Looks like your G is lowered? if so how low does this exhaust sit? am i gonna have to worry about scrapping at all?

It hangs pretty low. I'd be concerned with scraping at every driveway and pothole. Sounds awesome either way:biggthumpup:

While you're fixing leak may as well swap gears:cool:

@mirza im lowered ~1.2" and i'm fine 99% of the time. there is a crummy road near where i live and if i don't navigate the bumps right i hear it whack the ground and i die inside. but it is a really bad road with weird uneven bumps and stuff.

the lowest point is 2" from the ground with my lowering springs.

here is a soundclip btw :)

ART + E370 + g3's:

http://instagram.com/p/uEcZ-gjbzC/?modal=true

I'd say it's a high 8 or a 9. I've heard louder mustangs and vettes and stuff, but never anything like this from a G.

I'm on stock ride height and I scrape everywhere I go. I am in NY though so the roads are ****. I'm lowering on Eibachs next week and I'm pretty worried. If you get it, you're going to scrape, no avoiding it.

I'm already at 3K when I'm doing 65. I drive on the highway way too much for a swap haha.

Nice exhaust .. Have you ever wanted to replace your diff bushings ?!

Already replaced them. Just never cleaned all the stuff off.

Looks really nice. e370 would have been my first choice but i was afraid it was going to be too loud, so i went with ark (which turned out to be about as loud as i'd want an exhaust for a DD). i love the ark too but i think aesthetically, the tips on the motordyne look slightly better.

That's funny because I'm not a huge fan of the E370 tips. They've grown on me but I hated them originally.

And it is quite loud but that's what I was looking for (even though it's my DD) so I'm happy with the noise.

reviving this thread for a sec!

how's the drone on this? I know it's a significantly louder exhaust compared to ark and fast intentions, but I've heard the drone is less on the motordyne e370. I'm bouncing from the370z and myg37 with endless amount of searches. but yours would be a good review because you're still using stock cats while most are using tp/hfc/art pipes. Much appreciated.

Well, it depends on your definition of drone. If drone to you is the whirring noise that irritates your ear (like that up and down noise) then no, there isn't any drone.

However, the exhaust is pretty loud inside the cabin on the highway. If you're cruising at 60 without using much throttle, you can't hear it at all. Anything above 65, you could pretty much always hear it. I've done 4+ hour roadtrips and it doesn't give me a headache or anything, and you can still hear a passenger and have a conversation very easily. I believe it's the best case scenario for such a loud exhaust.

I'm used to loud exhausts, I've had many straight-piped cars and stuff like that, so I may be a little jaded, but I really don't think it's too bad.

i used to have an s2000 with a headerback exhaust by berk. That **** was unbelievably loud outside the car. And inside the car i can barely hold a conversation with a passenger. the cabin noise was too much. unless i was high in the rpm range. then again it was an s2000, car had no sound deadening material whatsoever.

What i was basically concerned about was to even have a decent conversation with my passenger while cruising streets/freeway.

Thank you sir!

If that's your main concern and you're also used to loud exhausts then I think you'd be very happy with the Motordyne. Blasting through a tunnel with the windows down makes it all worth it.

Motordyne Shockwave E370 Exhaust
 

Could the reason the VClamp broke was that the guy over tighten it? I'm installing mine this weekend and I'm afraid of the same results. Do you know if Motordyne have a recommended torque value?

Motordyne Shockwave E370 Exhaust
 

I totally think he over tightened it but I didn't want to call him out on it. He did say they were very weak factory clamps and I don't think there's a torque spec on them. Just be gentle.

thx man..

A buddy with g35 has this exhaust with art pipes and man I loved it...

No problem man, good luck with it.

Yeah I love it. I'm picking up a set of HFC's so it's about to be much louder haha.

Would this exhaust fit a g37 coupe awd version? Really hope for some answers !

Unfortunately no, this particular one is RWD only. Search around the forums for exhausts that will fit an AWD car.

Thanks for the instant reply seriously. That is kind of upsetting because that exhaust is such a beast. Motordyne should have something like that because ARK's have a AWD version. Of course I would like Motordyne to have a version of that, but maybe in the near future.

Yeah, I don't think the demand was there in terms of AWD cars. There's a couple more besides ARK that will make them. You can always have an exhaust shop do a custom job for a similar price as to what you'd pay for an exhaust like this anyway.

Stillen Exhaust is not labeled awd versions either. Yet I see a video like this.. interesting !

Most can be modified to fit your car if you spend the extra money. A user on here, Redfire32, was actually able to have a Fast Intentions Cat Back modified to fit his convertible, which is quite a task. But anything can be done with money.

You think it is possible to have the shockwave e370g to fit my awd version? If so, then I would not mind to go the extra step for it. Very helpful btw forums ftw !

A decent exhaust shop will be able to make anything fit, as long as you're willing to pay their rates.

Have you heard the FI in person as well? I like the low bass, exhaust notes and I heard that the Motordyne is high pitched loud while FI is lower. I'm trying to get as close to GTHAUS sound tone without the 3GS haha. I would buy the axle back but I get no performance gains when I get my a CBE at the same price with a little performance gain. Thanks!

installing this on the g tomorrow.. im on eibachs and worried she will scrape if not careful..
anyone know if the plain polished tips are available... not too fond of the blue tips it came with..

You will scrape if you're lowered. It's completely unavoidable with how the pipes sit in the rear. I actually just took my eibachs out this weekend and installed coilovers because I needed to be higher. The parking lot I work in has those annoying yellow bumps and my exhaust would scrape every time.

They do have polished tips available. Call them ASAP because I tried to exchange my blue ones for polished tips and they said no because I took them out of the plastic wrap. They're very serious about it and new tips are over $500

was afraid of that.. ill see how it goes for the next few weeks..
just finished the install and got caught in the rain midway... figured its only water and continued through..
ill have to revisit it later to align the thing... the driver side sits a little lower no matter how I tried to adjust it...
also had to leave the cross member out... is this normal

Yes, the cross member must come off and stay off. It's hard to align them properly. There's a metal shield (shaped like a box) near the rear wheel on the passenger side. The exhaust vibrated on that sometimes so I took the box off and grinded the part where it was hitting, which stopped the vibration and also allowed me to adjust the passenger side to sit evenly w/ the drivers side.

My explanation was bad so if you need a picture let me know and I'll take one tomorrow morning.

yeah its hittin mine too.. see pic
although ill probably use some sort of hard rubber to absorb the vibration instead of shaving..
also didnt have the spacers that came with it so I used washers.. probably better since I was able to choose my own clearance..
wanted to get minimum gap space.. should be enough to clear it from exhaust heat..
one of the pics shows it still needs adjusting.. driver side still lower than passenger..

Yes that's exactly what I was talking about with the rubbing. I was trying to find something to put there to absorb vibration but any type of adhesive-backed product wouldn't be able to withstand the heat and intimately fall off. I hope you're able to find a better solution.

I shaved it down, sanded, then painted to avoid rust in that spot. It wasn't totally hollow, so I was able to shave without creating any holes.

Tip clearance looks great. I remember not being able to get a perfect adjustment because the passenger side was hitting something, it may have been the problem we talked about but I don't remember. Follow the piping to see if there's any issues. I was able to get it adjusted properly in the end.

there are thermal adhesive capable of withstanding exhaust heat..
planned on having the rubber adhere to the exhaust piping instead of that corner..

sanded down the tips up to 1200 grit this morning... my buffer is in storage so decided to leave it..
its not mirror polish but it has the brush look... actually goes better with the grey imho..
pics of it before and after..

Hmm I really like that look. I was planning on taking them off soon and using some slightly abrasive metal polish to take the blue off. What grit did you start with and when did you notice it start to come off?

used 300..400..600...800..1000 then 1200...
like the brush look at the moment.. may polish it next spring but doubt it..
comes off easily btw..


noticed also that low end torque disappeared.. cant tell enough from the butt dyno to say where I gained...

Okay I'm reviving this thread if possible,just got off the phone with Motordyne today.They are launching this monster exhaust for us AWD coupes..YAAAY.i was almost going to get the ark because of sound,looks,and ease of bolt on,was also looking at Hks with a slight mod to get it to fit my AWD coupe.Motordyne said the should be available by the end of Feb-2017.

The ETA on this exhaust is 3-4 months out. We just confirmed this today.

Ordered mine last week, unfortunately it's already on back order for the AWD. I'm expecting a call on Monday from Motordyne letting me know when the exhaust may ship.

I just ordered mine with 5" burnt rolled tips and ART pipes. Cant wait!

I bought the coupe motordyne exhaust and mine rubs easily and I’m not even dropped that low. Anyone have the same issue. If I go in a parking garage and use the ramp to the next level the box after the Y pipe always scrapes. My buddies scrapes too and I’ve had to weld his box back up 3 times.

Is there a way to modify the exhaust to sit higher up in the car? Shorter rubber hangars?

https://cimg1.ibsrv.net/gimg/www.myg...c8fceded14.png

That was me that mentioned that. However, after I did that, I could never get the Y pipe to ART pipe flange connection to line up. I measured the flanges and they were 100% straight. That connection always leaked with like literally 5 different type of gaskets (OEM, aftermarket, etc).

It just seems like a really common leak point on these cars. It drove me crazy.