Increases from Exhaust, CAI, and Tune
 

On a 2013 Nismo, what kinds of rwhp and rwtq can be expected from a catback, CAI, and a custom tune?

Considering the Nismo gets its extra 18hp from an exhaust and tune, I'm going to go out on a limb here and say your final numbers will be the same as the same mods on a base model.

First, you're in Colorado your numbers will be lower than anyone else on this board because of the thinner air due to elevation.

Second, you own a Nismo, that cat back is as good and maybe even better than some of the offered units on aftermarket save the money. If you want to make power simply get an intake (although post MAF tubes and filters work as well) and Z1 headers + test pipes.

With the tune you would run around 330whp down in normal elevation.

with about 265-270 or so being the average stock (i never did a stock run)..... my cat back, HFC and intakes put me around 285 and then the tune brought me up to 300.

bolt on breathing mods like these have diminishing returns with each new addition.

15-18whp. Some people will say XX hp for intake and XX hp for Exhaust and XX hp for the tune... but you dont keep adding the numbers.

In my search for a tuner, I found two locations and looked at 2 dyno graphs. Basically with intake and exhaust and a tune each car gained 15whp and 17whp peak hp over the baseline.

The tunes don't add much peak hp, but they can pick up alot under the powerband.

With your elevation... likely much less.

I don't have the Nismo but just the base model and I already have CAI, injen exhaust, and headers just haven't got it tuned yet. People keep putting negative thoughts in my head about my engine blowing up while on the dyno. What's the likely hood of this happening?

if you go to an actual tuner who has done more than 1 tune before lol. i wouldn't ever even think of tuning blowing anything up.

people who blow their engines usually have turbo/superchargers that were installed incorrectly or had damaged/malfunctioning parts installed... or a tuner who pushed it too hard and fudged something up.. and of course the obvious - putting out too much power and the engine just not being able to handle it.

I went form 273 base to 289 with just the Gen3s and no tune. Plus also gained 16wtq as well. I am going next Friday for a tune since 2 weeks ago I added Z1 test pipes, tomie y and y back. I am hoping for at least 310. Would ecstatic if it was right around 320. 2009 Base Sport

Wow really there are people out there that have only got 15 whp with intakes, exhaust, and tune??

$2,500 or so for 15 horsepower is not very good at all.

my "base" was custom cai and top speed cbe. made 280/226.

next was lth and modded cbe. made 293/243.

a tune could probably do another 15/15.

No but it sounds cooler!

Thats the beauty of the 370Z. Guys also drop $2500 on I/E etc and run very close to stock 1/4 mille times.

As for the dyno tune.... I think most guys gain a peak of around 7-9hp..a few people might post higher but not much.

There is one local member on here who I have talked with who installed headers, test pipes, full catback exhaust and stillen intakes and put down 311 w/o a tune and 318 tuned. Total investment there was +$3K.

Isn't that ok actually? We aren't modding in the 90's and early 2000's anymore. Tech has come a long way. I mean nissan could have slogged the numbers down so people get a lot of extra hp from 3 very basics mods that everyone usually does so we could be amazed. Maybe I'm missing something though turbo vehicles from factory can usually get a lot more gains out of simple mods by NA is different usually. I could be wrong though just my impression.

Perhaps you guys are right. I am new to modding for the most part (used to have a jeep wrangler/different type of modding) so I'm far from an expert.

But I am just going off the part(s) threads I have read on here and 15 horsepower combined for 3 mods is not what I anticipated from the information from dynos on reviews from other members.

Not really. Go over to the Camaro and Mustang forums. Mod parts are pretty cheap (afterall the Coyote and LSX engines are made by the hands of the gods as we all know).

IMO our bolt on parts are over priced.