ok ladies an gents i just got off the phone with borla bout exhaust for ss sc they told me that its a dealer part only so i got a part# 17802110 its t304 stainless 2 1/2 catback will b ready for shipment in 10-15 days

 

We need pictures / websites / sounds!

 

yea dont post unless u got those 3

 

damn just shoot me lol ill try and find em for u guys

 

when you do get the pics I hope those guys aren't standing in front of their computer screens

 

2 1/2
Oh well.... guess ill have to go custom

 

i agree. 2.5" is too narrow to spend all that money on. what is the stock pipping size for the ss/sc? 2.5" is good for N/A engines but for F/I engines you got to go at least 2.75" but preferably 3".

 

Stock is 2.5" ! I love Borla but forget a 2.5"...

 

oh man, so why would anyone get another 2.5" exhaust for then? the name? lol waste of money if you ask me. might as well upgrade and spend the same amount of money.

 

Yup... Ill probably get a custom 3" with a borla muffler...

BUT Atleast Borla is putting out something for the SS/Redline... Good to see more and more companies get on board...

 

Stupid question, but what can you expect to pay for a custom made 3" exhaust?

 

Depending where you go anywhere from $400-700.... Just make sure you get mandrel bent !

 

lol definitely! Here's another stupid question...w/ a 3 inch exhaust will you lose torque from the loss of back pressure? On my mustang (previous car) when I did the h/c/i swap I switched from stock 2.25 to 2.5" exhaust and I lost around 10ft lbs in the lower rpms (though the gains were substantial in the higher range). Didn't know what it would be like on a FI 4-cylinder.

 

I think because its FI (supercharged especially) it should only give you increased output in both HP/TQ... I dont know sure though... From experience when I increased the size of my exhaust on my turbo crx (went up 1/2" after raising boost another 6lbs along with some other mods) I gained more torque and hp.... Mostly HP though...

 

Borla has always gone with the bigger isn't always better policy.

They usually dyno test/CG there exhausts so that there exhausts increase flow as well as velocity.

Some people here just shout out get a 3" but have no idea waht there talking about. In a perfect exhaust system velocity is more important than flow.

 

AAahhh so thats the secret for beating SRT-4s...

 

Corsa built the 3 inch exhaust system for the Grand Am Cup Cobalt SS/SC's.
I am sure no research or thought went into that car.

3 first places finishes in the ST class I think....

As for flow vs. velocity, pretty sure they are related. The faster the exhaust gas is moving down the pipe and out tip the more flow (CFM) you achieve.

I definetly agree you should research your decision before you make it and not just believe bigger is better. I think that a 2.5 inch (stock size) mandrel bent exhaust with a less restrictive muffler on the end would make more power over the stock setup.

 

Im sure a the Borla 2.5" exhaust is going to make more power. Borla probably wouldnt produce it if it didnt. I just think that if you are planning on doing moderate-heavy modding a 3.0" will be very beneficial later. Ill be that Borlas 2.5" is going to sound great... I cant wait to hear some clips.

 

i'm not doubting the borla would outperform the stock exhaust but for spending all that money might as well get one that will also serve a purpose as you mod your car more.

 

Just get custom ran mandrel bent exaust and buy a borla muffler off ebay.

youll be good to go.


The only thing that would worry me is this.

the Borla as well as any other company probably had the pipes bent in certain places and ran a certain way to gain horse power. If you have your local speed shop or Monroe Mufflers run you a custom 3 inch MB catback it might not flow as efficiently because the people running it dont do any testing or such. If it was just as easy as making a pipe then both Borla and Magnaflow would have had exaust out for our cars months ago.

Just my 2 cents.

 

From my experience even companies like Borla/Magnaflow do not spend signifcant amount of time doing R&D for these kinds of exhausts. Most of the time they get a car to do fitment, maybe check stock exhaust flow. Build there own setup... make sure it flows better.. and boom your done.. A lot of the delay with these companies producing stuff is from them being so darn big (selling/building so much product) they have to try and get the new item into the production schedule.

 

In that case I might just buy the 3.0 exaust I saw in another post with a Vibrant Muffler. Vibrant is a Canadian company. I had a Vibrant Cat back on my SE-R and it sounded so good. When that Vtech or CVTC or what ever the hell the car has kicked in it sounded so bad ass! wait.... That was the intake, scratch that

 

You really don't have much of a choice how you route the pipes. You have to follow the stock routing unless your going to do some heavy moding.

I think the only really differences will be: Diameter, Mufflers and Resinators. For the cat back at least. Of course quality of the exhaust materials and craftsmanship still count as well.

 

Borla definitely has that ! Had one on my SVTF and it was really really nice.

 

I would think that a large company that makes lots of cat back system, probably has benifited from years of experience. If they didn't make a decent product they wouldn't be in business