1. I'm curious if anyone has used this exhaust system on a N/A 2nd gen:

- CORK SPORT 'Power Series' Cat-Back Exhaust System -Turbo, NA (80mm)
- CORK SPORT 'Power Series' Mid-Pipe -Turbo, NA (80mm)
- CORK SPORT 'Power Series' Silencer Insert (for PS Cat-Back)

http://corksport.com/main.php3?primNavIndex=1&

2. If so, how loud is it?

(I'm trying to decide between something like this, or the Racing Beat system).

 

I have a CS catback hooked to a full 1 piece 3inch DP/MP combo and its loud as hell. way to loud for street driving. I had to use their silencer thing to go above 3k in residential areas. Right now I am having a custom DP fabbed up and I will drop a borla xr1 after it to tone down the sound a little.

 

lol my friend just got that cat back and he is gonna be running rb header strait through test pipe too it N/a that is lol, its gonna be cranking loud

 

Don't waste your time with Cork Sport junk. Pick up Racing Beat if its an option. RB doesn't disappoint. If you have a race car then its different but I can almost hear you saying its your daily right?


BTW i'm down in Laredo you ever roll down here?

 

I have the SSAutochrome catback (same as Corksport but cheaper) and it's perfectly find and now as annoying (to me) as everyone says.

Of course, i still have cats, so I'm certain that will make a difference. 1987RX7guy just doesn't like loud things.

 

I wish someone had a stock t2 with nothing but a FCD and we put the full CS kit against the beloved full dual RB kit through it on the dyno and put a end to the thought that the RB is the best setup for the second gen. I have owned both and the reason the CS is louder is because it has less restrictions and is straight.

If anyone is in the MD/VA area and would like to put this to the test they can bolt up my corksport setup for the comparison. Now all we need is someone to put up a RB.

 

I'll put money down that a 3" pipe will be better than the CS.

Same difference. Worthless setup for the street.

And yes I hate loud things. I am not one to need or want attention from my car. The best killer is the silent one.

 

I like my CS, I am running it on a 1990 GTU with cat still in so it is not too loud. And for the price, it is hard to beat. I am sure I will get annoyed when I take my cat out but until then I like it, I dont even run the silencer.

 

SSautochrom(sp?)

Is more bang for the buck than CS. Bam! CS just got beat! If you want sharty singles just buy a POS like that. Why waste your money.

 

"I'll put money down that a 3" pipe will be better than the CS"

The corksport is 3 inch from the turbo back. So yes we all agree the corksport will lay down larger numbers with a much louder sound to it. I would still like to do a dyno test to prove this.

 

I doubt the two exhaust will ever meet up. The type of person which buys a CS turbo back is cheap or poor. The person that buys an RB turbo back is more into quality and doesn't care about money as much so they won't likely be picking up a CS setup any time soon. The only hope would be someone with two TII's one for street and one a race car. Then he might be interested in both exhausts.


My question is, If corksport knows that HP numbers get all the dyno racers to shoot a load in their pants why don't they just dyno it? Its interesting that RB has well known HP claims/results and yet CS does nothing to compet with that. But like I said the CS products are a different market than RB. CS people only care about bang/buck and not much about sound.

 

Incredibly loud.

I had it on my 88 GTU when it was NA with a cat/bonez DP.

I could hear it idle inside my house which has stucco outside walls.

I now have it on my TII conversion with RB 2.5 DP and presilencer.
It is AS loud as a NA with cats! I don't even want to know how loud a NA with no cat and CS single would be.

The car has a few rpms spots where it's some what quiet but you can still hear me at least a mile away. It get's super loud if your WOT and the wastegate fully opens.

It does sound good at times but when I'm on the highway I get the drone from hell!

I plan to buy N1 Duals or the RB system soon so I don't go deaf before I hit 25.



Oh and BTW. Your whole the RB is for people which want quality.......
The CS is a damn good unit. Just very loud due to it's straight through muffler.
If it had another inline muffler it would kick ***.

 

Racing beat has all straight through mufflers. I can stick a rubber hose in one end and it comes right out the other end. Racing beat just has quality design. Quality=not sounding like an F1 car

 

i think the reason its so damn loud is because it tappers down from 3 1/8" to 2.5" which is good for scavenging, but acts as a megaphone.

CORK SPORT 'Power Series' Cat-Back Exhaust System -Turbo, NA (80mm/stock cat)

The all new Cork Sport 'Power Series' Cat-back exhaust system is constructed of 80mm (appx. 3 1/8") T304 stainless steal with a polished finish (100mm tip). Mandrel bent for maximum flow design. The single exit (driver side) also helps drop substantial weight from the vehicle (appx. 36lb drop in weight from stock).

-->>This system's flange tapers down to 2.5" to bolt to the stock cat.<<---

 

Thanks to everyone for the feedback. I do use my 90 vert as a daily driver, and don't want anything too loud. Consensus seems to be that the CS system IS too loud for the street. Guess I'll have to pony up the $ for the RB system.

1987RX7guy - I've only been down to Laredo once. Whenever I'm outside S. A., it's usually to go to the beach (Corpus).

 

im going to get the RB streetable header, RB presilencer, and the CS catback.

shouldnt be too loud :P

but seriously, have you heard a new ferrari-- they are loud as ****. The frequency is just right- it gets you right in the ear.

 

If you're low on green try Borla. its also a good quality setup.

 

i have a RB header, glasspack (installed backwards, to prolong life) and CS power series catback.

i drive on the street everyday.. ALOT, i have never been pulled over, and i am very impressed with the sound/look.

the welds are of great quality, and corksport has been the best company i have dealt with so far... never a long wait, and allways arrives without damage, or any mishaps.

for the money, this system rocks. - ever want to scare ricers beside you when you step on it? - this is the system for you! - at crusing speeds, its no louder than any other car with a canon on the back... but if you decide to floor it, the CS system sounds MEAN...


i recomend it.. end of story!

-cam

 

p.s. i have used this system for about... 20,000 KM and it works awsome still.. is in great shape.. and NO THE GLASS PACK ISN"T MELTED OUT - it sounds EXACTLY the same as the day i installed it

---good 20$ purchase if u ask me

 

~50k miles on my RB stuff. Still works. Still better than cannons.

 

haha i was going to buy digi7ech's CS catback, still might, yeah its loud, i could here him coming when i met him at macdonalds to buy his bonez super flow pipe, it osulded good though

 

I was thinking the same thing that the tapered beginning act as a megaphone.

 

Thx for everyone's input. I went ahead and ordered these from RB...

Cat Replacement Pipe w/Presilencer
89-92 Conv
Part Number: 16217

Cat Back Exhaust System (y-pipe & mufflers)
1986-92 RX-7
Part Number: 16420

Now I'm broke.

 

good chioce. I'm sure you'll love the setup when you get it. I would have opted for headers but meh.

 

you guys think that the downpipe/presilencer yeilds a noticably less amount of power when compaired to the header??

i got the downpipe... because it does state that it yeilds comparable performance but less noisy...

should i upgrade do you think?