Best mod route keeping car quiet as possible?

[Doublestack00]

I have a 2013 Si, right now my only mod is a AFE Takeda CAI. I am looking to do a few more mods, I know i want to get a Flashpro and have Vit tune it. But I am wondering what other mods I can do yet maintain close to stock exhaust note? Would a cated downpipe make the car a lot louder? Is there any exhaust that is close to stock that would actually make a difference in power?

 

[Nix]

@squiggy has the full race DP and I think @323 has the RV6. They may be able to give you more insight. A catted pipe will be quieter than a non-catted and the Invidia Q300 is the quietest aftermarket exhaust I know of. Most people say it is only slightly louder than stock. Hope that helps.

 

[323]

A bigger downpipe will add some noticeable volume, I gave the Ultimate Racing downpipe which is 3" like most others, the RV6 is only 2.5" which will still give you some gains but probably be a bit quieter than the rest.

For the exhaust, I recommend Ultimate Racing because they have an option to add a secondary muffler to the exhaust system, making it very quiet while cruising.

 

[Doublestack00]

Yea, it seems the Greddy SP Elite (which is not made for sedan and that is what I have) and the Q300 are the quietest out there. I like the sound of the SP better.

Anyone have a catted down pipe and Q300 with sound clips?

 

[mySIck]

I am running the Full-Race Catless DP and it dose not sound any loader while just driving around normally but when you kick it up a notch it is kinda loader but not to far from stock and if you get the one with the cat it will tone it down some more.

 

[Doublestack00]

A bigger downpipe will add some noticeable volume, I gave the Ultimate Racing downpipe which is 3" like most others, the RV6 is only 2.5" which will still give you some gains but probably be a bit quieter than the rest.

For the exhaust, I recommend Ultimate Racing because they have an option to add a secondary muffler to the exhaust system, making it very quiet while cruising.

What is the difference in power gains with the 2.5 or 3" downpipe is staying NA?

 

[Doublestack00]

The Q300 is $510 shipped, vs $825 for the UR. I'll probably go with the Q300.

 

[323]

What is the difference in power gains with the 2.5 or 3" downpipe is staying NA?

Difference in half an inch will net somewhere around 5-6 hp (my best guess)

"Is staying NA"? What are you asking?

 

[Michal006]

Get q300 if you want quiet exhaust that is slightly louder than stock. Everything else is loud

 

[Christian12]

Waiting on suggestion for skunk2 mega power rr exhaust

 

[mySIck]

Waiting on suggestion for skunk2 mega power rr exhaust

The guy next to me has one it is SUPER load I can hear him driving down the road for miles sitting at my couch watching t.v

 

[Doublestack00]

The guy next to me has one it is SUPER load I can hear him driving down the road for miles sitting at my couch watching t.v

Yea, I def do not want that. I'd like it so unless I am getting on it you'd think it was stock. I do not want the added attention.

 

[mySIck]

Yea, I def do not want that. I'd like it so unless I am getting on it you'd think it was stock. I do not want the added attention.

Like Michal006 said I would get the Q300 it is probably the best for not being loud. Or well from what I have heard in person.