K & N short intake...opinions

lemon-fresh

kdo2milger

if only interested in short rams then don't bother. do what speedfreek said.

i did the same with mine because like you i didnt want the hassle of removing re-installing the bumper, though not a hard task to accomplish, i just didnt want to do it.

2 x K&N drop ins
33-2399 - K&N Replacement Filters, Replacement Air Filter direct from K&N

and these HPS replacement hoses:
Amazon.com: 09-11 Nissan 370Z 3.7L VQ37VHR HPS Silicone Post MAF Air Intake Hose Blue: Automotive

cheaper than shortrams and no risk of heatsoak

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lemon-fresh

or get them both from one place...

Z1 Silicone Post-MAF Intake Hoses

MacLean

So if one was to get the K&N Replacement Filters ($122 for 2 filters) & the HPS Silicone Post-MAF Intake Hoses ($110) you are only looking at $232. A guy stated that he did a dyno 3x's with the K&N Replacement Filters & he received 10whp. HPS Silicone Post-MAF Intake Hoses is stating 6.77whp. I'm guessing that if one opted to go with the Z1 Silicone Post-MAF Intake Hoses instead of the HPS Silicone Post-MAF Intake Hoses that the whp would possibly be the same. Ok at the end of the day one could possibly assume that if he/she went with both K&N Replacement Filters & HPS Silicone Post-MAF Intake Hoses (or Z1 Silicone Post-MAF Intake Hoses) that you can possibly have 11-14whp (maybe 14-16.77whp with tune)?

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l Meisterschaft Full Cat-Back Exhaust l F. I. Resonated High Flow Cats l Stillen Gen 3 l M370 Intake Manifold l UpRev l JWT Clutch & Flywheel l ZSpeed HD CSC l Stillen 19 Row Oil Cooler l ZSpeed Powercoated Under Tray l GTSpec: 6, 4, 2 Point Brace l

kdo2milger

sounds about right....i would guesstimate 12-13...

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Shamrock

Sorry I don't understand. K&N drop-ins with post maf hoses will give the same horsepower upgrade as the K&N short ram intake.

1. Will the engine sound as loud with the drop-ins?

2. Why no danger of heat soak with the drop ins?

3. How can the drop in filters plus maf set up be the same hp as the K&N short ram?

Please explain. I am no mechanic.

370ZilverZ

You will get about the same sound as stock. You will not be displeased with the K&N Typhoons. They look and sound better than any other out there IMO! I drive in the Texas heat and have not felt that the heat has any effect on performance at all.

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370ZilverZ Journal

BMW Z4

speedfreek

This subject has gone round and round. Everyone has an opinion on it. My take is this. If you do not want to go with a long tube setup to get true cold air with the Stillen G3's or Takeda Stage 2 setups then I would go Post MAF tubes with K&N drop ins. The short ram kits are nice and look good under the hood but the effects are minimal over the Post MAF setup. Plus on top of that most already have a CBE of some sort and the returns from the intake systems will be even less. It comes down to how much you are willing to pay for a few more hp and looks. Mainly I think its the latter if you like the look of the system and want it than get it...if it gives you a few more hp and at the very least doesnt take away any then its a win/win.

1. Will the engine sound as loud with the drop-ins?

No it will not sound much louder if any. Everyone's ears are different but it will have minimal effect on sound.

2. Why no danger of heat soak with the drop ins?

People will argue that Short ram kits such as the Typhoon will suffer from heat soak due to the style of heat shields used. There are reviews saying they are great and some saying they are not worth the extra money and suffer from heat soak. The filters are no longer fully enclosed in a air box and when the temp gets hot under the hood some claim they are more susceptible to heat soak. I think the stock air boxes are probably just a susceptible as well, maybe slightly better since they are fully enclosed.

3. How can the drop in filters plus maf set up be the same hp as the K&N short ram?

They will not be the same. On a stock car the Typhoon kit will open the engine up more yielding you the 13-15hp they claim much like the Stillen G3's will yield you the 18hp they claim. If you already added or plan to add an exhaust system the gains are not stackable. So if you installed the Typhoon kit and netted the 13+ hp gain and then install an exhaust system that claims 20+ hp gain you will not get a total of 33+ hp gained. The rate of return diminishes with each bolt on.

That is where it comes down to what looks nice, sounds good, and price come into play. If you like the way the Typhoon kit looks and are ok with the price then you will get some hp gains and a more aggressive sound.

If it is about price alone. You can get a Post MAF with drop ins for around $190 shipped and the Typhoon kit goes for around $300 shipped. Assuming most who mod thier cars will have a CBE of some kind. The Typhoon kit will give you a few more hp gains over the Post MAF setup with a more agressive sound. However is the $100+ price difference worth it? Well that is for you to decide.

lemon-fresh

1. About the same as stock, there may be a slight hiss on cold start.

2. They are made of silicone instead of metal which has much greater heat resistance.

3. The stock intake setup is already quite good, changing out the tubes and filters only improves upon what is essentially a CAI system by slightly increasing air flow and heat resistance. If you use short rams you are going to lose the CAI benefits of the stock setup.

MacLean

The Stillen G3 claims 18.33whp, Takeda Stage 2 Intake claims 15whp, K&N Typhoon 13-15whp & the K&N Replacement Filters plus Post-MAF Intake Hose (10whp for filters & 6.77whp for Post-MAF) 16.77whp (doubt it would be this high).

Yes I do agree that if one already has a CBE (20+whp) & adds mods (CAI 15whp), then you will not get 35whp. If you want to get back some of the hp that you lost by adding mods to the car, then you should get a tune.

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l Meisterschaft Full Cat-Back Exhaust l F. I. Resonated High Flow Cats l Stillen Gen 3 l M370 Intake Manifold l UpRev l JWT Clutch & Flywheel l ZSpeed HD CSC l Stillen 19 Row Oil Cooler l ZSpeed Powercoated Under Tray l GTSpec: 6, 4, 2 Point Brace l

RuB_MyZZteR

Have them on my car and I love them

Had the HPS MAF Tubes and K&N Filters on before and it was significantly slower than it is now. Don't believe everything you hear on the forums.

MacLean

Really......... I have my mind set on the Takeda, but these K&N filters & Post-MAF caught my eye as well. I agree with what you are saying about not believing everything you read. I believe one will never go wrong with Stillen G3 or the Takeda Stage 2 Intake. So what did you switch too? How was it actually slower? Did you have CBE & if so did you get a tune?

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l Meisterschaft Full Cat-Back Exhaust l F. I. Resonated High Flow Cats l Stillen Gen 3 l M370 Intake Manifold l UpRev l JWT Clutch & Flywheel l ZSpeed HD CSC l Stillen 19 Row Oil Cooler l ZSpeed Powercoated Under Tray l GTSpec: 6, 4, 2 Point Brace l

sparky

This is why I'm going with the Typhoon kit.
Nice and concise opinion, thanks!

RuB_MyZZteR

I meant to say that my car feels faster now with the K&N Typhoons than it did with the MAF Tube and Filter combo.

And yes I have test pipes and a catback, no tune. However mines a Nismo, it already comes with a factory tune (don't know how much difference that actually makes)

svt to 370z

just get the typhoons and be done with it.. sound is bad azz and u open the hood it looks fantastic!