Twin Intakes
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From: Denver Colorado
Twin Intakes
So im getting my 2008 350z upgraded to have twin OEM cold air intakes very soon, I’m getting it dyno tuned the same day, about how much hp can I expect to be added by the end of the installation and tuning?
Are you only doing twin cold air intakes?
Do you have aftermarket intakes on the car now and you're going back to an OEM setup?
Just curious - what are you tuning with and who is doing your tune?
Do you have aftermarket intakes on the car now and you're going back to an OEM setup?
Just curious - what are you tuning with and who is doing your tune?
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The car is entirely Stock right now aside from being straight piped, I’m not sure of the name of the guy doing my tune but he’s well known all over Denver for being the best at what he does, the name of the place is 5250 Performence
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It’s being switched to the cone shaped filters as well as tuned up to have them run with maximum performance. I’m not highly educated on the whole thing, I just know they’re cone shaped and it’s getting tuned up to use them properly
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Believe you're referring to the Nismo "R-Tune" intakes. Wide open throttle is where you'll see some performance increases. Had it, they make a nice growl when on the throttle. The Nismo cone filters are dry (not oiled) and washable.
BTW, I'd been informed by a respected tuner in Louisville Ky. that the ECU/MAF sensor will accommodate any change in AFR's due to this swap. Wether or not this is an accurate statement I can't confirm but the gentleman is pretty much the go-to builder/tuner in the mid-west.
A tune WILL assure you everything is copacetic and can move the power band to the RPM range you find most useful. You MAY see a 3-5 increase in HP.
BTW, I'd been informed by a respected tuner in Louisville Ky. that the ECU/MAF sensor will accommodate any change in AFR's due to this swap. Wether or not this is an accurate statement I can't confirm but the gentleman is pretty much the go-to builder/tuner in the mid-west.
A tune WILL assure you everything is copacetic and can move the power band to the RPM range you find most useful. You MAY see a 3-5 increase in HP.
Sounds like youre pretty new and/or a beginner...no problem with being a beginner and/or not having a complete knowledge base. Everyone was a beginner at some point in time. This is quite possibly the best place to learn and grow your knowledge base.
Where in Denver do you live? There are a handful of us on here.
By chance do you have pictures of the setup as it sits now and pics of the parts you're putting on? Are you putting them on yourself? If you need a hand, let me know.
I like this thread ... because a high flowing exhaust and some high flow intakes arent going to make huge amounts of power gains -
But the gains that the OP will see can be attributed to two things:
#1 - the higher flowing exhaust and the higher flowing intake
#2 - the amount of 'fluff' Nissan added to the OEM tune for emissions, reliability, fuel grade tolerance, etc
I'm very interested to see how this plays out!
My guess is you'll see 12-15hp & 15-20 ft*lb gain from a baseline to post-tune
Where in Denver do you live? There are a handful of us on here.
By chance do you have pictures of the setup as it sits now and pics of the parts you're putting on? Are you putting them on yourself? If you need a hand, let me know.
I like this thread ... because a high flowing exhaust and some high flow intakes arent going to make huge amounts of power gains -
But the gains that the OP will see can be attributed to two things:
#1 - the higher flowing exhaust and the higher flowing intake
#2 - the amount of 'fluff' Nissan added to the OEM tune for emissions, reliability, fuel grade tolerance, etc
I'm very interested to see how this plays out!
My guess is you'll see 12-15hp & 15-20 ft*lb gain from a baseline to post-tune
Last edited by bealljk; Jul 1, 2018 at 03:52 PM.
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I would post pics of the OEM intakes but I’m having the guy order them for me and install/tune them up the same day. The way it looks now you can find by googling “stock 2008 350z engine”. I’m hoping for atleast a 10hp-10ftlb torque up but I’m honestly fine with anything. On a side note, will the car sound any different with these intakes? As I meantioned above it has straight pipes so what can I expect from the new intakes + straight pipes
Refreshing to see that OP has realistic expectations for gains after the tune 
bealljk is right - you'll see more changes from the tune itself than the intakes alone, but they'll give you a couple, maybe. Obviously, the best thing would be to get numbers before the tune, after the tune, and then after the intake install and re-tune to see what type of gains you got from them.
I doubt your tuner would be willing to do that since it takes more time. I imagine he'll just install the intakes, run a baseline, then flash it and get it dialed in.
I picked up 18hp with my N/A tune, but I installed just about every bolt-on breather mod with the exception of headers.
As far as sound is concerned, you may hear a "sucking" or whistling sound with the new intakes and a little growl under the hood at WOT, but nothing too loud.
bealljk is right - you'll see more changes from the tune itself than the intakes alone, but they'll give you a couple, maybe. Obviously, the best thing would be to get numbers before the tune, after the tune, and then after the intake install and re-tune to see what type of gains you got from them.
I doubt your tuner would be willing to do that since it takes more time. I imagine he'll just install the intakes, run a baseline, then flash it and get it dialed in.
I picked up 18hp with my N/A tune, but I installed just about every bolt-on breather mod with the exception of headers.
As far as sound is concerned, you may hear a "sucking" or whistling sound with the new intakes and a little growl under the hood at WOT, but nothing too loud.
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I'm surprised people are still going back and forth about this crap.
^don't discourage him! This is a great opportunity to see what (essentially) a tune will do to an otherwise stock engine (albeit he's got a higher flowing exhaust and a slightly modified intake)...
OP, proceed with your mods and tune - take a bunch of pictures and some video and post up your before and after of your tune.
Ask the tuner if he'll do a few pulls with your car as it sits now...then get it tuned with the new intakes and lets see how the custom tune influences output!
OP, proceed with your mods and tune - take a bunch of pictures and some video and post up your before and after of your tune.
Ask the tuner if he'll do a few pulls with your car as it sits now...then get it tuned with the new intakes and lets see how the custom tune influences output!
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Thank you guys for your feedback, I’m really looking forward to getting the work done. I’ll be sure to oplead pictures and or videos of before and after the installation and tune! Downside is that the appointment had to be pushed back to about a month from now due to some higher end cars requesting getting “lots of internal work done as quickly as possible” so I guess the more expensive the car the quicker you get helped out. Whatever works but I will be sure to upload soon
Keep us posted - I’m interested to see how the car does and how the tune goes. I’ve heard pretty good things about 5280 so they’ll take care of you.
the nice thing with your setup is that you can keep modifying and to retune will be an hour or so of dyno time.
