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plunkman · 03-02-2010, 02:13 PM

Fellow C-5 owners I have a 2000 coupe 6sp. transmission with a callaway cold air induction as the only after market device. I am interested in changing the stock mufflers and pipe from the cat back. What is the best performing brand and how much of a gain in horsepower/torque can I realistically expect?? also who is the best/less expensive dealer to buy from. ? thanks jp.

lucky131969 · 03-02-2010, 02:17 PM

Quote:

Originally Posted by plunkman

What is the best performing brand and how much of a gain in horsepower/torque can I realistically expect??

Zero. It's all about the sound.

plunkman · 03-02-2010, 02:20 PM

your car looks exactly like mine without the side trim. who has the best sound ?

lucky131969 · 03-02-2010, 02:25 PM

Quote:

Originally Posted by plunkman

your car looks exactly like mine without the side trim. who has the best sound ?

Very subjective.....it's all about one's taste...and age ....

I have corsa pace car....which sounds perfect for me.

zeevette · 03-02-2010, 04:05 PM

No offense, but you gotta be a noob. Topic's been done to death. Search for catback choices, and get links to sound bites/opinions. You will get more threads to read than there are stars in the sky.

cptinjak · 03-02-2010, 06:32 PM

IMO:

best sound/lightest = z06 Ti
"best sound" = corsa pace
loudest = b&b bullets (or straight pipes)
best option = stock! (never pay for something that makes no power. Might as well buy a huge spoiler or something...)

cdkcorvette7 · 03-03-2010, 03:26 PM

Quote:

Originally Posted by plunkman

Fellow C-5 owners I have a 2000 coupe 6sp. transmission with a callaway cold air induction as the only after market device. I am interested in changing the stock mufflers and pipe from the cat back. What is the best performing brand and how much of a gain in horsepower/torque can I realistically expect?? also who is the best/less expensive dealer to buy from. ? thanks jp.

I think I read somewhere that you get around 2 - 3 HP from a catback, so don't do it for the power. I have Borla Stinger Quad Tips and I love them. This is really subjective and you could read for months if all you did was search for "which exhaust" on this forum. Here are some to consider

Corsa Pace Car - Louder than touring, but not that loud. Almost Stock at Idle. Very nice exotic note at WOT.

Corsa Touring - Pretty much the same as stock in my experience as far as volume. Maybe a more exotic note...

Borla Stingers - I'm biased here, so take this one with a grain of salt. Muscle car rumble at idle, screams at WOT, not too loud so as to prevent a conversation in a normal tone of voice. Some have reported bad drone around 1300 - 1800 RPMS, but I haven't experienced it.

GHL Bullets - About the same as the stingers, but apparently eliminate the problem with the drone that some have.

B&B Bullets - LOUD, let me reiterate LOUD But for some, loud is good...

These are the only one's I have heard in person, there are others... Good luck in your search.

Bill Curlee · 03-03-2010, 03:53 PM

PLEASE find some local fellow C5 owners that already have an aftermarket exhaust system installed and take a ride in their car. If you like the sound, COPY that set up + engine mods. Automatic ver manual tranny makes a difference too!

If you purchase the wrong system you will get drone and life will SUCK! Unless you enjoy DRONE!

The BEST SOUND is very very subjective it isn’t funny. Loud to you may be quite to me and the other way around.

Like it was already stated, you get minimal gains from a cat back system 3-5 hp on a good day and maybe 10 with high flow cats installed. The OEM C5 exhaust is not that restrictive.

bigleman · 03-04-2010, 08:31 AM

Get a GOOD set of headphones and go searching around on youtube.

mizenermotorsports · 03-04-2010, 09:33 AM

So get some long tube headers... Performance and sound

TR97C5 · 03-04-2010, 09:34 AM

Quote:

Originally Posted by plunkman

Fellow C-5 owners I have a 2000 coupe 6sp. transmission with a callaway cold air induction as the only after market device. I am interested in changing the stock mufflers and pipe from the cat back. What is the best performing brand and how much of a gain in horsepower/torque can I realistically expect?? also who is the best/less expensive dealer to buy from. ? thanks jp.

Below are a couple dynos showing 10-12 rwhp gains with catback only before after results with catback only. Also in my research I have seen some members on this board with C5 manuals with catback only dyno higher vs stock exhaust manual. IMO from research there seems to be a pick up of rwhp with a catback only system imo anywhere from 8-12rwhp depending on the system.

C5 auto dyno gain with catback only 13rwhp

DYNO TEST RESULTS
STOCK BASELINE B&B BULLET CAT-BACK B&B BULLET W/ HEADERS
RPM RWHP TORQUE (lb-ft) RWHP TORQUE (lb-ft) RWHP TORQUE (lb-ft)
2000 105.8 277.7---- 108.6 285.3---- 111.2 292.0
2200 117.6 280.6---- 120.5 287.8---- 123.4 294.7
2400 130.0 284.5---- 133.2 291.4---- 136.4 298.6
2600 142.5 287.9---- 146.0 295.0---- 149.5 301.9
2800 154.6 290.1---- 157.2 294.9---- 162.1 304.1
3000 166.2 290.9----169.9 297.4---- 174.2 305.0
3200 178.6 293.1---- 182.5 299.5---- 186.8 306.5
3400 190.9 294.8---- 195.3 301.7---- 199.2 307.6
3600 203.6 297.0---- 208.5 304.2---- 212.3 309.7
3800 216.5 299.2---- 222.5 307.5---- 227.0 313.7
4000 229.5 301.3---- 236.0 309.9---- 241.0 316.5
4200 239.9 299.9---- 248.0 310.1---- 253.6 317.1
4400 249.6 297.9---- 258.0 308.0---- 265.1 316.4
4600 260.3 297.2---- 270.0 308.2---- 277.1 316.4
4800 271.3 296.9---- 279.7 306.1---- 287.1 314.1
5000 280.4 294.6---- 289.9 304.6---- 296.7 311.7
5200 286.1 289.0---- 297.6 300.6---- 303.2 306.2
5400 290.1 282.2---- 299.9 291.7---- 306.9 298.5
5600 289.4 271.4---- 300.8 282.1---- 308.0 288.1
5800 290.4 262.9---- 301.6 272.3---- 305.3 276.4
6000 285.8 250.2---- 296.4 259.4---- 305.0 267.0
6200 282.0 238.9---- 293.8 248.9---- 299.8 253.9

PEAK STOCK 286.1 hp @ 5200 rpm
301.3 lb-ft @ 4000 rpm
BULLET CAT-BACK 300.8 hp @ 5600 rpm
310.4 lb-ft @ 4100 rpm
BULLET W/ HEADERS 308 hp @ 5600 rpm
317.1 lb-ft @ 4100 rpm

http://www.vetteweb.com/tech/0501vet...ust/index.html

C5 auto dyno gain with catback only 12rwhp

BASELINE MagnaFlow w/mufflers mufflers and & x pipe
RPM HP TORQUE (lb-ft.) HP TORQUE HP TORQUE
--------Stock--------Magna Muff----Muff w/X
3,900 206.5 278.1-- 220.8 297.4-- 222.1 299.1
4,000 219.9 288.8-- 226.2 298.1 --227.7 299.7
4,100 225.1 288.3-- 233.2 298.7 --234.6 300.6
4,200 231.7 289.8-- 239.8 299.8 --241.2 301.6
4,300 235.8 288.0-- 244.3 298.4 --246.1 301.1
4,400 242.3 289.2-- 249.5 298.1 --250.9 300.7
4,500 246.5 287.7-- 255.6 297.8 --257.6 300.6
4,600 246.9 286.4-- 260.5 297.4 --263.0 300.3
4,700 248.3 282.1 --265.6 296.9 --267.6 299.9
4,800 249.9 279.2-- 270.9 296.4 --274.1 299.0
4,900 251.6 266.6-- 276.0 295.8 --278.2 298.2
5,000 258.4 274.5 --278.4 292.5 --283.6 298.0
5,100 264.2 272.1-- 277.7 290.9 --285.7 294.2
5,200 269.3 272.0-- 288.0 287.1-- 290.6 293.6
5,300 271.4 268.9 --289.7 286.0 --290.7 288.1
5,400 273.5 266.0 --290.1 281.2 --291.6 283.6
5,500 274.9 262.6 --291.6 278.5 --293.9 280.7
5,600 275.6 258.4 --292.6 274.4 --294.0 275.7
5,700 277.8 256.0-- 293.4 270.3 --294.4 271.3
5,900 279.8 249.1-- 292.8 260.7 --295.1 262.7
6,000 278.6 243.9 --290.9 254.6 --293.4 256.9
MAX HP
[email protected],900 rpm
MAX TORQUE (lb-ft.)
[email protected],200 rpm
[email protected],800 rpm
(+13.9 over base)
[email protected],200 rpm
(+10.0 over base)
295.6 @5,800 rpm
(+15.8 over base)
[email protected],200 rpm
(+11.8 over base)

http://www.exoticperformanceplus.com....html?item=461

AU N EGL · 03-04-2010, 10:13 AM

LT headers and proper X-pipe produce the HP. Mufflers are for sound. a good set of low restriction high flow mufflers will help hp, but that is almost limited to Borla Stingers and straight pipes.

RedLS1GTO · 03-04-2010, 10:46 AM

Here is an article from Corvette Fever about the Corsa Ti "race" system with proven gains.

http://www.corvettefever.com/howto/73978/index.html

I just so happen to have one I might be willing to part with.

http://forums.corvetteforum.com/c5-p...ti-street.html

All_Motor_C5LS6 · 03-04-2010, 11:43 AM

Any gains on manuals?

dubhouse1 · 03-04-2010, 11:50 AM

i agree with the first post of no gain in power. The only way you might gain some is with replacing the manifolds to the tips. And that power could only be accessed by replacing the intake and heads because you can only exhale what you breathe in!

2000cor · 03-04-2010, 12:32 PM

Quote:

Originally Posted by RedLS1GTO

Here is an article from Corvette Fever about the Corsa Ti "race" system with proven gains.

http://www.corvettefever.com/howto/73978/index.html

I just so happen to have one I might be willing to part with.

http://forums.corvetteforum.com/c5-p...ti-street.html

So we have 3 dynos (1 manual & 2 autos) all showing gains of 9.6-13rwhp and btw I like that Corsa system!

RedLS1GTO · 03-04-2010, 01:59 PM

Quote:

Originally Posted by All_Motor_C5LS6

Any gains on manuals?

Quote:

Originally Posted by 2000cor

So we have 3 dynos (1 manual & 2 autos) all showing gains of 9.6-13rwhp and btw I like that Corsa system!

My 02Z gained ~12 horsepower on the same dyno on the same day back to back runs before/after the Corsa with no other changes.

exhaust and horsepower