Intake with an airbox really worth it?

[capaz04]

Did it eventually adjust or did he have to fix it?

 

[CSF707]

I was actually surprised how big that silencer is on the 11 STi lols, once removed all those nice turbo sounds come to life
added Cobb SF Intake with box.

 

[Spamby]

Did it eventually adjust or did he have to fix it?

No. He had to fix it.

 

[capaz04]

No. He had to fix it.

Lol yea that sounds more like it

 

[teedub21]

Don't waste your money on an intake unless you want to hear the pshhh sound. Also don't even think about an intake or a drop in K&N filter on a GR without a tune.

 

[Joeywnc2291]

I'm still new to the STIs and modifying them. I've always worked on old big block racing engines. What is an intake silencer?

 

[Alin]

Its a waste of plastic that quiets down the intake noise inside the cabin.

 

[Joeywnc2291]

O I gotcha. I think I just read something that said that 08+ don't have one. I have a 2015 sti.

 

[Batmobile_Engage]

I'm still new to the STIs and modifying them. I've always worked on old big block racing engines. What is an intake silencer?

It's a plastic tubular section that attaches to the lower end of the intake/filter box. It's kind of like a drain trap under the bathroom sink, but it's purpose is to keep induction, turbo and bypass valve noise to a minimum to comply with the multitude of automotive and government regulations.

It has no effect on performance of the stock intake, but removing it will allow you to hear the turbo spooling and the vented boost from the bypass valve returning to the turbo inlet.

 

[Alin]

[MENTION=1507]Spamby[/MENTION] was saying there might be an exlusion. Lets see what he has to say.

 

[Joeywnc2291]

Yeah let me know for sure. I would love to hear more turbo spooling. But from what I've seen the BOVs are not the way to go for that. Screws up air to fuel

 

[Batmobile_Engage]

Its a waste of plastic that quiets down the intake noise inside the cabin.

Damnit...you beat me to it. :banghead: :lol:

 

[Alin]

No BOV! No need for an aftermarket BPV either as of now. Whatre your goals for power and what type of car will this be?

 

[Spamby]

The WRX does not have it. The STi does. Not sure with the 15 but since it's the same old engine, I would bet it does.

 

[Batmobile_Engage]

Yeah let me know for sure. I would love to hear more turbo spooling. But from what I've seen the BOVs are not the way to go for that. Screws up air to fuel

In the vast majority of cases, you can run whatever bypass/blow off valve you please, provided that the vented boost is routed back into the intake tract. The factory BPV is more than capable and shouldn't be changed, until you start making a ton of other modifications and more power.

 

[Joeywnc2291]

Yeah I'm not going to touch the Bov. And honestly I drive it daily. I'm not making it a track car or anything. Just enjoy working on it. I'm not wanting to put a new bigger turbo or anything on it. Just trying to make it look sick and up the horsepower a little. Maybe get it up to 350 or a Lil more than that.

 

[Joeywnc2291]

I am wanting to figure a way to make the turbo more noticeable. That's been something I've been trying to research.

 

[Alin]

I am wanting to figure a way to make the turbo more noticeable. That's been something I've been trying to research.

More noticeable in which way?

 

[Batmobile_Engage]

Yeah I'm not going to touch the Bov. And honestly I drive it daily. I'm not making it a track car or anything. Just enjoy working on it. I'm not wanting to put a new bigger turbo or anything on it. Just trying to make it look sick and up the horsepower a little. Maybe get it up to 350 or a Lil more than that.

To keep the engine reliable without changing out the internals, max recommended horsepower is ~400. A solid protune on stage II modifications will net you approximately 315whp.

 

[teedub21]

Just trying to make it look sick and up the horsepower a little. Maybe get it up to 350 or a Lil more than that.

Not gonna happen on the stock turbo and motor. Need a bigger turbo and E85 for those numbers.