Question: Smooth coupler ?

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Dec 19, 2009 | 06:19 PM

killain

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From: SE Pennsylvania

St. Jude Donor '03 thru '26

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Question: Smooth coupler ?

I see these "C5 Smooth Couplers" around in the catalogs, Claiming 5 hp increase, which I think is as close non-existant as possible. So my question is : Are they worth the price? I've seen prices from $59.00 to $42.00. What do you think ?

Dec 19, 2009 | 06:20 PM

04 commemorative

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From: Down the Shore New Jersey, Elev.3 feet

St. Jude Donor '17

I have one because I like the look....if there is an increase great but I'm sure it is not much if any .

Dec 19, 2009 | 06:24 PM

Silverbullet00

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From: Norman Oklahoma - The Only State in the Union with no Blue Counties!

No way do they make 5 HP. Might help some but mostly for looks!

Dec 19, 2009 | 06:53 PM

renegad44

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From: This is not a Song, It's an Outburst: Or, The Establishment Blues; Sixto Diaz Rodriguez

Quote:

Originally Posted by 04 commemorative

I have one because I like the look....if there is an increase great but I'm sure it is not much if any .

Dec 19, 2009 | 08:40 PM

killain

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From: SE Pennsylvania

St. Jude Donor '03 thru '26

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Quote:

Originally Posted by renegad44

Thank you guys. On days were it's snowing or raining I get these "bright Idea's" and it's so great to have a library of wisdom like you gents to listen to. Thank you and Have a wonderful holidays season !

Dec 19, 2009 | 09:31 PM

71corv

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From: Mechanicsville VA

St. Jude Donor '08

One of the first changes I made to the Z06. Did not offer any HP gains that I know of, but it did improve the idle. Also the smooth coupler looks a lot nicer than the accordian one it came with. I think Chip,at CCA, has a special on these. Check with him and see.

Gene

Dec 19, 2009 | 09:39 PM

dobewillie

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From: lockport n.y

Mostly for looks

Dec 19, 2009 | 09:50 PM

Indy

Melting Slicks

Joined: May 1999

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From: Vancouver BC

I was thinking of getting one of the smooth air couplers a while ago, but then just decided that it was not worth it...5hp...

...and Turbo stickers give you an extra 150hp.

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Dec 19, 2009 | 11:37 PM

moserbe

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From: Wellsboro Pa

Just for looks. I've got one sitting on the work bench just lookin pretty.

Dec 20, 2009 | 12:06 AM

#10

itzza427

Le Mans Master

Joined: Sep 2007

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From: Belleville Il

Mostly for looks,,what they don't mention that after a few pulls on a dyno,,with a stock ECM,,the computer starts adjusting air fuel ratios to run wot. For a while it will pick up HP & TQ each pull. Considering they probably do a few base line,,then several after the install it can easily show a gain of 5 HP. Trouble is as soon as you start doing regular street driving,,it starts relearning the OLD parameters and those gains are gone. They are not lying,,but not exactly telling the truth either.Same for Cat back claims. They used my car in a dyno display and did 13 pulls through the day. Went from 323.8 horses to 338.9!! Ran great for a few days!!Couple of days later,,finished a night at test and tune with a 13.08/110.24. Later,,never got closer than 13.1+ and 13.2's to those original numbers!!But at least I can say i had a best of 13.08/110.24,,,just don't have to say it was LAST YEAR

Dec 20, 2009 | 01:52 AM

#11

Camjamsdad

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From: It's true money can't buy happiness, but it is more comfortable crying in a Corvette than on a bicyc

St. Jude Donor '13

I was gonna buy one for the looks. Mostly cause the normal red would go nicely with Torch Red. Never did. But for very little more I did buy a Vararam air bridge that moved the MAF and uses the smooth hoses. So if there is a gain from smoothing out your airflow I got that and the gain, if any, from the air bridge. What I did see was a smoother idle.

Dec 20, 2009 | 08:35 AM

#12

Tigershark3

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Joined: Aug 2005

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From: Fort Wayne IN

I had one on the car but took it off and sent it back to the vendor. Crappy fit and really I preferred the stock piece over the smooth one. $.02

Dec 20, 2009 | 08:55 AM

#13

rdline

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From: slidell louisiana

Quote:

Originally Posted by 04 commemorative

I have one because I like the look....if there is an increase great but I'm sure it is not much if any .

Dec 20, 2009 | 05:41 PM

#14

dudleyd

Racer

Joined: Aug 2005

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From: Montara Ca

Check these guys out....
http://www.siliconeintakes.com/index...c5f9f891aa004c
1/5th the price. I used there couplers when I installed my BPP CAI with a power duct.

Dec 20, 2009 | 06:13 PM

#15

Vetteman Jack

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From: In a parallel universe. Currently own 2014 Stingray Coupe.

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You really won't get any hp increase with the smooth coupler. More for looks than anything else.

Dec 20, 2009 | 07:09 PM

#16

Chicago1

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From: Rio Rancho NM

Quote:

Originally Posted by dudleyd

Check these guys out....
http://www.siliconeintakes.com/index...c5f9f891aa004c
1/5th the price. I used there couplers when I installed my BPP CAI with a power duct.

I use these couplers on my scm6152 equipped car(gt35r turbo) lots of boost and no issues so no worries.

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