GM Cat Back Exhaust
Thread Starter
Le Mans Master
Joined: Oct 2004
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From: Parkland Florida
GM Cat Back Exhaust
I had no luck in general but who makes the aftermarket GM exhaust? I believe it is Borla and has I think a corvette emblem on the tips. Does anyone have pics and what about drone?
Thread Starter
Le Mans Master
Joined: Oct 2004
Posts: 6,590
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From: Parkland Florida
Originally Posted by cerino2000
jimman had this on his car. I believe it is the equivelant of the Borla Touring which I had on my car. Tone is deep, drone is minimal and quite tolerable.
Le Mans Master
Joined: Dec 2003
Posts: 7,457
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From: NC
I think the only ones that don't have drone (really don't have drone) are the stock cat back mufflers. I have a really low tolerance for drone and I can tell you that the touring were actually tolerable. Drone zone on a M6 is at 1600 RPM.
Pro
Joined: Feb 2005
Posts: 510
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From: Pennsylvania
Originally Posted by cerino2000
jimman had this on his car. I believe it is the equivelant of the Borla Touring which I had on my car. Tone is deep, drone is minimal and quite tolerable.
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Le Mans Master
Joined: Dec 2003
Posts: 7,457
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From: NC
I am going to go with a set of headers and felt like the exhaust and the headers were going to be a bit much. One thing to definately note is that I am yet to see anyone on here actually post a dyno sheet (other than a vendor) showing an improvement in HP with just a cat back. In fact, if and when jimman chimes in, he will tell you about how he actually lost 2 hp on the dyno after installing this exhaust and a set of K&N air filters.
Thread Starter
Le Mans Master
Joined: Oct 2004
Posts: 6,590
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From: Parkland Florida
Well I just ordered the LG's and I agree that Cat Backs on the C6 doesn't add any HP. I wanted something but not my C5 all over again and a C6 is no mustang with bassani so I was thinking the stock tips look wimpy so Corsa a little louder not much and a nicer look but the tips on the GM/Borla looked really nice.
Racer
Joined: Jul 2004
Posts: 461
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From: NW Suburbs Illinois
Originally Posted by cerino2000
I think the only ones that don't have drone (really don't have drone) are the stock cat back mufflers. I have a really low tolerance for drone and I can tell you that the touring were actually tolerable. Drone zone on a M6 is at 1600 RPM.
Last edited by TRJ; Oct 8, 2005 at 11:29 AM.
Team Owner
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From: Big Bend Country, TX
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
I had LG install the Borla touring catback w/x-pipe package on my C6 w/m6 this past week and there is no drone at highway speed. In fact, with the damn chip rock that Tx is using on the secondary roads, the tire noise over powers the Borlas. 
They are slightly louder than stock in the lower gears and sound fantastic coming off the line or during a passing roll on. Lets put it this way, I have to remind myself to shift out of 5th sometimes. That's how mellow the exhaust note is. I love it !! 
Mikey
They are slightly louder than stock in the lower gears and sound fantastic coming off the line or during a passing roll on. Lets put it this way, I have to remind myself to shift out of 5th sometimes. That's how mellow the exhaust note is. I love it !! Mikey
Le Mans Master
Joined: Nov 1999
Posts: 7,695
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From: Imperial Beach CA
Originally Posted by Triple Black C6
So they have some drone?
Stock baseline
After a few thousand miles, same temp and humidity but with the K & N filter added to the stock intake and the Performance exhaust.
Last edited by jimman; Oct 8, 2005 at 10:01 AM.
Team Owner
Joined: Sep 1999
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From: Swansea IL
This brings up a question. I'm close to pluuing the trigger on a C6 and I'm thinking of leaving the OEM exahust (cat back portion) but installing some LT headers, high flow cats and an X-pipe. I know the C5 Z06 Ti exhaust ectually sounds fantsatic set up like this with ZERO resonances, does anyone know how the C6 oem exhaust sounds with some LT's? And considering there isn't any HP gains like in the C5 why waste the money on that, I'd rather use my mod $$$ for some LT's.
Tom
Tom
Pro
Joined: Jan 2005
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From: DC Metro Area
St. Jude Donor '06
Originally Posted by Triple Black C6
I have an auto I am leaning towards the Corsa Sports for the no drone but the tips on these are really sharp. I love the B&B's but drone is a no-no.
Anyway it made me stop the changover until I hear them myself in an A4.
Team Owner
Joined: Dec 2003
Posts: 57,408
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From: queensbury ny
Exhaust...
Just wait for the Z06 exhaust....full 3" and opens at WOT after 3500.It'll be available for regular coupes??that would be a cool thing to have.I was just reading corvette quarterly and saw a gm cat back w/ccr or something on the tips.anyone know about those??
Le Mans Master
Joined: Nov 1999
Posts: 7,695
Likes: 51
From: Imperial Beach CA
Originally Posted by jessem
Just wait for the Z06 exhaust....full 3" and opens at WOT after 3500.It'll be available for regular coupes??that would be a cool thing to have.I was just reading corvette quarterly and saw a gm cat back w/ccr or something on the tips.anyone know about those??
