Installed R2C intake for a G on my EX yesterday, NICE!

[jrmotorsports55]

I picked up a barely used R2C intakes setup for a g, and thought I'd give it a shot. Install was straightforward other than having to do a little customizing for the breather tubing (different setup on the g). The black nickel tubes with exposed filters look great, the thing sounds mean, and it is definitely faster. Very glad I went this route.

Jason

[meanie]

I picked up a barely used R2C intakes setup for a g, and thought I'd give it a shot. Install was straightforward other than having to do a little customizing for the breather tubing (different setup on the g). The black nickel tubes with exposed filters look great, the thing sounds mean, and it is definitely faster. Very glad I went this route.

Jason

Jason, I am really pleased to hear it bolted up so well. Was it from a G37 or G35? I have an R2C I pulled off my totalled 2010 G37 and was hoping to put it on my 2011 EX this summer, but wasn't sure if it would fit. The whole stock intake assembly does look much like the one on the 3.7 engine though. Does it help with the kickdown lag when you punch it? I know I felt like the CAI did on my G.

[jrmotorsports55]

It was from a 09 g37. Throttle response is much improved.

Jason

[Teknical]

How long did it take you to install? How much experience do you have doing this kind of work? What kind of tools did you need? How much do those cost? Are there any instructions?
Thanks

[audtatious]

http://www.infinitig37.com/r2c-intake-install.html

^^ installation steps for a G. If jason gives details on the tube modifications then it should be a piece of cake to install.

[jrmotorsports55]

I have a lot of mech exp, but this is pretty easy. That link will help. For the breather lines, I got a few feet of 5/8 heater hose and some 90 deg plastic fittings from home depot (just using the hose would kink it).

[meanie]

It was from a 09 g37. Throttle response is much improved.

Jason

That's good news! I had thought of selling the R2C assembly, in fact I almost forgot and left it on the car in the body shop, and would have lost it to salvage. Glad I held onto it. I think I'll wait until close to the time for changing my OEM filter and then swap the CAI in. I did find it made the raucous noise on WOT in my G almost unbearably raspy, but the sound was great at lower rpms. Have you tried flooring it yet? I am hoping the 3.5 engine is more refined at higher rpms. I actually like the stock exhaust sound of the EX better than on my G37 sedan. One guy on the MyG37 forum did a before and after dyno with the R2C and it added around 14 brake horse power, so extrapolated for crank hp numbers it probably pushed the G close to 350 horse. It felt it. I wonder how much it will pump up the EX?

[jrmotorsports55]

Yes, I've floored it. Definately faster, and sounds mean. Next comes the exhaust system.

[EX-KAT-35]

PICS or it didn't happen...

Good work exploring & extending the performance options on the EX.

[jrmotorsports55]

LOL, I want to make a few aesthetic tweaks to the breather mods, then I'll post pics. Probably this weekend.

Jason

[meanie]

LOL, I want to make a few aesthetic tweaks to the breather mods, then I'll post pics. Probably this weekend.

Jason

Let us know if you see any difference (up or down) in gas mileage. That is if you can keep from flooring it.

[meanie]

How much do those cost? Are there any instructions?
Thanks

Ther are a number of vendors on My G37 and they offer some good deals, especially when pushing a group buy. Cost also depends on which configuration. Typically the black-nichol finish is more expensive than the "polished" or flat black one. They are one of the more expensive cold air intakes, but are easier to install than some, like the Stillens 3 (which requires some cutting on the G), are in the engine bay so you don't have to worry about water getting into them, and feature a terrific filter that just has to be blow off every so often and does not require oiling. The filters are good for 100,000 plus miles, so you save the cost of OEM filter replacement. A lot of the G37 folks are mod crazy and buy and sell CAIs and exhaust parts as they try out different configurations, so you can find some deals on used ones if you are patient and monitor the site. Most folks seem to feel they are the most effective CAI for the G37 after the Stillens. They do come with instructions, but as is so often the case, they are of limited use. There some instuctions with pictures posted on My G37 that really help. It is not a real difficult install. I bought mine (flat black) new last year for $360 shipped. It would have been $400 for the black-nichol finish. There are a lot of threads on My G37 about the R2C. Of course they are specific to the 3.7 engine, most people seem to like them, but the reports are generally seat of the pants impressions, except for a couple of diehards who did before and after dynos. I couldn;t locate too much on the R2C and G35s, and I wasn't sure that the G35s had the same dual air intake that the EX does, as the R2C models for those look different from the ones for the G37 and have different numbers.

[audtatious]

If anyone wants R2C intakes I highly suggest tunerzstore.com. Owner is also a mod here.

[RED_DET]

I would also like to see the pics of necessary modifications and I'm sure we can make the intake specifically for the EX.

I was selling these for $360/$400 before the slight price increase in the intakes.

Current pricing is $400 for black powder/polished & $450 for black nickel.

I need one guinea pig for intake test fitment....near Chicago, IL.

[jrmotorsports55]

I'll try to get pics soon. Basically it took removing the factory "chamber boxes" in the breather lines, and using 90s & 5/8 hose to connect. The rest of the install is straightforward.

Jason

[jrmotorsports55]

Pics:

[jrmotorsports55]

The parts I had to get for the install were:

3 90 deg bends that 5/8 heater hose would fit on (found them in the plumbing section at home depot).
12" 5/8 heater hose
6 hose clamps.

After getting everything fitted right and tested, I sprayed the complete drivers side assembly with black paint to hide all of the clamps.

Thanks,

Jason

[RED_DET]

Excellent!

[meanie]

The parts I had to get for the install were:

3 90 deg bends that 5/8 heater hose would fit on (found them in the plumbing section at home depot).
12" 5/8 heater hose
6 hose clamps.

After getting everything fitted right and tested, I sprayed the complete drivers side assembly with black paint to hide all of the clamps.

Thanks,

Jason

Thank you Jason for the pixs and the parts list. Your trailblazing really helps out the rest of us. I look forward to getting my R2C on this summer.
Bob

[Teknical]

I want it too! How much hp would you guess it adds? Does it sound much different?

[jrmotorsports55]

No idea on power, it is noticable though. Sound is much louder when floored, I love it!

Jason

[RED_DET]

I have talked to R2C any one interested in these just let me know, the kit is available for EX35...

[meanie]

I want it too! How much hp would you guess it adds? Does it sound much different?

A guy on the My G37 site did before and after dynos and if memory serves (not a sure bet in my case) it added about 14 hp, which at the wheels is about a 5% increase (most unmodified Gs fell in the 260-270 BHP range). If it adds a similar percentage to the EX then I would assume at the crank it would be 14-15 hp, putting us between 310 and 315. That's pretty close to the European EX 37 ratings. I am never sure how much faith to put in dyno readings for intakes though. The extra power should be due to the cooler air and reduced restriction, resulting in greater air flow, which would presumably be building up as the car makes more forward speed. Yet on the dyno the car is not moving, and a fan cannot really replicate acceleration dynamics. Makes me wonder if actual power output might be greater than a dyno would show.

[parkstr8r]

I woud love to hear a sound bite....I miss the sound of my 2011 G37S coupe...

[EX-KAT-35]

A guy on the My G37 site did before and after dynos and if memory serves (not a sure bet in my case) it added about 14 hp, which at the wheels is about a 5% increase (most unmodified Gs fell in the 260-270 BHP range). If it adds a similar percentage to the EX then I would assume at the crank it would be 14-15 hp, putting us between 310 and 315. That's pretty close to the European EX 37 ratings. I am never sure how much faith to put in dyno readings for intakes though. The extra power should be due to the cooler air and reduced restriction, resulting in greater air flow, which would presumably be building up as the car makes more forward speed. Yet on the dyno the car is not moving, and a fan cannot really replicate acceleration dynamics. Makes me wonder if actual power output might be greater than a dyno would show.

If it means anything DS Sport magazine has also dynoed the intake kits on the 350z and 370z with similar results to what your friend got.

[meanie]

If it means anything DS Sport magazine has also dynoed the intake kits on the 350z and 370z with similar results to what your friend got. [/quote]

Do you happen to have the link for that? Thanks.

[EX-KAT-35]

No links I have the actual magazines.

Every once in a while my boyfriend will see something in DSport (correction NOT DS Sport) on the magazine stand that catches his eye relating to the Nissan/Infiniti family and we pick up the magazine.

I guess that stuff would be on their website depending on how integrated it is to their past issues. We could look on You-Tube too.