Thinking of a Corsa (with X pipe) on my '94 LT-1.

Have heard the Extreme system and it's a bit much for me, but the Touring and Sport are very similar to me.

Has anyone heard these 2 systems live?  I'd like a little more rumble that stock but not too much......

I like the warranty, looks and ease of install and don't mind the extra coin to get it.

Can I expect to pick up some power with this system? I also plan on a reflash at the same time to optimize A/F and timing.

Thanks.
C.


|UPDATED|1/7/2014 2:31:02 PM (AZT)|/UPDATED|

I just put a Corsa (sport) on my LT5 sounds good little bit raspy but I have headers. Good thing is absolutely no drone or resonance. the corsa has an h setup just before the resonator.  The fit was great.

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1991 ZR-1 # 118 SW Headers/Corsa-3:73 gears-Haibeck-510HP/350 1993 ZR-1 # 179 Yellow/ White- Haibeck tune, Flowmasters

Thanks WG -- I've been told that an X-pipe is optional on the Corsa. (no extra charge).
Don't like it raspy but I have no headers so shouldn't be an issue.

I like the sport but wonder if it's a bit loud.  The no drone character is a big attraction.

Did you notice any increase in power or was it so marginal that it's not noticed?

Colin.

Did my Corsa a few years ago, great fit and installation (on jackstands) was pretty easy.  Sound is better than stock at idle but really picks a growl at higher rpm's and WOT.  After some head work and cam, RR's, the sound got even better.  No drone, goes without saying, is a big plus.

Quite true JM -- hate the drone -- gives me a headache....... I can live with raspy if I need to no worries.

 I haven't heard anyone who was unhappy with their Corsa system. Bodes well for the name.

They not the cheapest by any means but it appears that they are one of the best.

I'll keep the ARH headers in mind for the future.

Thanks for the reply JM --

BTW are you anywhere near Lewisburg? I have a friend there.

Cheers,
 Colin.


|UPDATED|1/9/2014 12:32:48 PM (AZT)|/UPDATED|

Lewisburg is about 2-2.5 hours away off of I-81, Bucknell U. is located there, I believe.  I'm in the suburbs of Philadelphia. 

|UPDATED|1/10/2014 8:15:06 AM (AZT)|/UPDATED|

Hey JM -- lived in the Ottawa valley for many years and remember the severe winters there vividly.

Great in the summer but cold, cold in winter.

Yes Bucknell is near Lewisburg --- my buddy's son attends there.

I'm now in Cambridge which is about an hour west of Toronto. About 5 hours from Ottawa, 6 from Montreal.

Nice here, much milder than eastern Ontario.. tho this year has been bad with a lot of ice, snow and cold.
C.

And from Ottawa, I'll take the winter and the snow to stay out of the traffic in Toronto anytime!

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CCO, If your still running cats you won't get so much of the raspy sound, I had to add cats back to mine for emission and it got rid of most the raspy sound. They sound great as stated in normal driving. At WOT they get loud! but how often do run that hard. You won't get extra HP from an exhaust system, but you will gain back HP lost in the factory setup anywhere from 8-15hp. The Corsa is a free flowing system no baffles, drop a golf ball in one end it will fall out the other. 

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1991 ZR-1 # 118 SW Headers/Corsa-3:73 gears-Haibeck-510HP/350 1993 ZR-1 # 179 Yellow/ White- Haibeck tune, Flowmasters

LOL good analogy WG .. -- Looking forward to the Corsa's in the spring. Did you get the sport or Extreme?

I was thinking of header for my LT-1 , I believe American Racing was mentioned but the price of $1800 put me off altogether. I'm wondering now if that was for the who system rather than just the header section.
$1800 sounds a bit outrageous for just headers.

C.

I went with the Corsa Sport with black tips, Got them thru Summit. As for headers check out Stainless Works.

http://www.stainlessworks.net/products/headers/chevy-corvette-1992-96-headers.html

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1991 ZR-1 # 118 SW Headers/Corsa-3:73 gears-Haibeck-510HP/350 1993 ZR-1 # 179 Yellow/ White- Haibeck tune, Flowmasters

Thanks for the link WG -- I'll check 'em out. Can't go $1800 at least not right now but something a little more moderately priced might do.

I also was considering the black tips on my Polo Green with black corvette lettering. Should be a nice fit.

Cheers,

Colin.

I got Magnaflows on mine. A lot cheaper and they sound good. FYI bro.

Perry


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I think you'll find American Racing Headers are 1-3/4" ss w/ 3" collectors complete to the end of the cats (including s-pipes bringing them together past the tranny)  whereas stainless works and most others are 1-5/8" and stop at the header outlets (so you still need the cats).

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Thanks man -- I'm kinda concerned about drone otherwise I'd consider Magnaflows.

Yeah Corsa is expensive but might be better for me.

Cheers.
Colin.

Thanks, I'm startled at the cost of headers and piping back to the cats...almost as much as the Corsa exh.

I had my LG headers ceramic coated and they look like crap now all discoloured -- I'm told it's "normal" due to heat cycles and such. I was hoping they'd stay nice looking. Almost wished I'd wrapped them instead.

Not 100% yet -- got til April -- provided it stops snowing.....

Freakin' weather sucks monkey balls..

C.

Be careful about header wrap, it will hold moisture and if the headers are not SS they will rust out fast, and any oil that may leak can catch fire.

Had my SW headers coated, they have been on for 7 years now and still look new except a small spot on the left collector from a bad clutch slave cylinder.  I'm not sure of the primary size on the LT1-4 headers mine are 2" Long tube with cats.

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1991 ZR-1 # 118 SW Headers/Corsa-3:73 gears-Haibeck-510HP/350 1993 ZR-1 # 179 Yellow/ White- Haibeck tune, Flowmasters

You can renew your coated headers with most aluminum polishes. Cermacoat even makes a special one for theirs but I don't really see a difference.  Of course it only works on the coating. I give mine a once over in the spring but, still nothing like stainless for luster and longevity.

|UPDATED|3/4/2014 6:34:10 PM (AZT)|/UPDATED|


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I've heard that of header wrap b4 -- It does sound like that's not the answer either.

I hadn't even considered the wrap burning due to oil leakage/seapage. Makes sense.

The ceramic coating on my LG's is on my '11GS -- I was told "they all do that" ... Not had a chance to check out anyone else's yet. The installer is reputable, tho he did send the headers out for coating.  I'm inclined not to get it done again ...... at least not thru the same place.

After hearing about your headers I'm very disappointed in mine.  I can't believe that the different engine and year could be that different.....Live and learn.

Headers are on the shelf right now mainly due to cost. Seems including cats the system is dang near the cost of the cat back Corsa.(both installed).
 They're probably very good and yield some hp and tq but cost in a bit onerous. Maybe next year. I can't do it all at once.
Everything else (and I mean everything) has been replaced and the car is low mileage anyway so lucky there.

A Sport Corsa, bushings (prothane), and manual engine cooling fan control, and auto trans cooler along with the P-Zero 285's I scored is enough for this spring.

BTW -- I understand that 285's are ok on the 8.5" OEM front rims, -- Opinion? -- the Rears are 9.5 and 285's from the factory. Got such a good deal on the p-zeros I couldn't resist. They're new on refinished '88's -- got for $1.2k
Hate the runflats -- they're too dang hard.

Thanks for the suggestions,
C.








|UPDATED|3/4/2014 7:38:33 PM (AZT)|/UPDATED|

Very interesting! I wan not aware of that.-- Tho access will be an issue -- Ceramcoat .... I'm googling it right now.

Thanks.
C.

Google Ceramcoat and nothing......can you help please.

C.


|UPDATED|3/4/2014 9:19:08 PM (AZT)|/UPDATED|

You had the run flat option on your C4? Don't see that very often. I got rid of them on my 04 before it was a year old never looked back, hated the ride.

 Sounds like a good plan on the upgrades.

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1991 ZR-1 # 118 SW Headers/Corsa-3:73 gears-Haibeck-510HP/350 1993 ZR-1 # 179 Yellow/ White- Haibeck tune, Flowmasters

I do -- from the build sheet (found over the gas tank) XFR and XFS is there along with a whole list of RPO's.
BTW -- the compnine build sheet has 2  "unknowns" -- they are: VM3 and WY5 .. do you know what they are?

There is about  1"x3" hole in the line build sheet damaged when removed from the gas tank. Those codes may be in that section that's damaged.

Another strange thing I noticed is that the build sheet says the exterior colour is "Medium Green Metallic (45U) 
The touchup paint I bought is:  47 WA 9539  (no colour name)  .

The tires are all but brand new but made in 2002 --- The original owner replaced them with the same tires. I got 4 stickered P-zeros with refinished  '88/89's for $1.2k so I can't complain. Those should improve the ride for me somewhat. Got Runcraps on my GS and I hate them. They're on the list of 'to-do's'.

Pardon the off topic..... and thanks for the help. I really like my C4 nearly as much as my GS.

C.

WY5 is "Tires Extended Mobility"

|UPDATED|3/6/2014 12:11:22 PM (AZT)|/UPDATED|

Got the Corsa installed a week ago and very happy with it. No headers and no rasp -- rather tamer than I expected but no complaints at all. Nice and throaty idle and acceleration after which cruising at hwy speed is very pleasant with no hint of  a drone (until acceleration again.

 Great system, seems well worth the extra coin.

I was thinking that the OEM system is much heavier......but after weighing the old system (71lbs) and asking Corsa about their system it seems that it's slightly heavier at 81lbs. (including packaging) according to Corsa. So a few more pounds over stock.

Surprisingly the OEM system came off in one piece which I have should I want to go back to stock.

Now the C4 has some 'attitude'.....

C.