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View Full Version : Add an "Exhaust Section" to SCCOA Forums



Crash00527
02-16-2011, 11:17 PM
Reference this thread to requesting to add an Exhaust Section to the Forums.

http://www.sccoa.com/forums/showthread.php?t=118903

91BLOWNBIRD
02-19-2011, 12:59 AM
exhaust is not super important but it is super popular...Most of anyone's ?s can be answered with the search function or simply by getting a hold of Dave because he has probably dealt with or experienced most exhaust combos

I can look back at all the exhaust work I have spent $ on and wish I could go back and get most of my $ that I spent on all the different setups I tried

Crash00527
02-19-2011, 01:13 AM
well.. thats why i also added the "who cares" option to vote lol

rapper33142
02-19-2011, 01:21 AM
exhaust is not super important but it is super popular...Most of anyone's ?s can be answered with the search function or simply by getting a hold of Dave because he has probably dealt with or experienced most exhaust combos

I can look back at all the exhaust work I have spent $ on and wish I could go back and get most of my $ that I spent on all the different setups I tried what are u running now

Crash00527
02-19-2011, 01:26 AM
stock.. i wanna get madrell bend stainless pipes, maybe magnaflow cats & resonator and debating between borla or magnaflow mufflers. also debating on going catless

91BLOWNBIRD
02-20-2011, 12:25 AM
i'm running midlengths into 2 high flows into a magnaflow dual in/out muff in place of res and dual all the way out the middle of rear...2.5" piping all the way through

its not super loud cruising but at WOT i'm sure for pedestrians it sounds like you are under attack...v8 guys always ask what the hell is going on after I give them a show...its got some ponies too

91BLOWNBIRD
02-20-2011, 12:28 AM
stock.. i wanna get madrell bend stainless pipes, maybe magnaflow cats & resonator and debating between borla or magnaflow mufflers. also debating on going catless

i think magnaflow has a more aggressive sound than borla but I have never used borla...prob not worth it for the $...

dont expect much power gain from changing out exhuast components...you'll mainly get sound

Deeper tone if you keep 3" pipe through tank than splitting into duals

also best upgrades are usually near the front with ported manifolds and better downtubes

Crash00527
02-20-2011, 12:43 AM
Yea I gotta hear some more sound clips. Some magnaflows sound slightly ricey/ European like

I know you don't get power gain unless you change the ENTIRE exhaust, like I have on my Camaro and Grand National. The only reason i want the exhaust changed IS for some better sound & air flow.

I already have kooks headers sitting in my garage for power gain.

Dirtyd0g
02-20-2011, 02:53 PM
I find exhaust to be te annoying subject usually brought up as a first mod by kids. I voted who cares as well. Once the real mods have peaked the best thing to do is find a good exhaust guy to bend you up a new system and weld it together. Until you have a need for an exhaust the only thing worth doing is gutting the third cat because it doesn't do anything anyway and doesn't get direct heat to make it operate properly so it clogs up.
Alan

Crash00527
02-20-2011, 02:58 PM
Third cat? What you mean Alan? The resonator?

Dirtyd0g
02-20-2011, 03:44 PM
On the stock exhust from the supercoupes I liketo remove it. With aftermarket exhaust systems I prefer to use a dual 2.5 in single 3 out. The third cat i don' think applies to supercoupes just na 3.8 and 4.6 cars.
Alan

35thauto
02-21-2011, 03:30 PM
FWIW I just ordered a Flowmaster Force 2 cat back incl. Res. & 2 series 40 mufflers direct fit. I will post the results in 2 weeks. I currently have ported collectors, hollow cats & a $27 http://cgi.ebay.com/ebaymotors/High-Performance-2-Chamber-Muffler-3-inlet-2-25-dual-_W0QQcmdZViewItemQQhashZitem4cecb6e7f9QQitemZ33038 8924409QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccesso ries#ht_1185wt_939 2 to 1 resonator & OEM mufflers. Yes on the exhaust forum.

Crash00527
02-21-2011, 11:01 PM
yes please do. I'm curious.

91BLOWNBIRD
02-24-2011, 11:33 PM
the headers are kind of worthless unless you know you will be modifying the engine later...I think ported stock manifolds can support 300rwhp and from my experience there wasnt much sound difference.

biggest change in sound was length of exhaust...

the shorter the louder and almost deeper of a sound you will get

Crash00527
02-24-2011, 11:41 PM
Not too worried about headers right now. But I am gonna do the engine over next year.

Shorter the louder?!? Everyone I've talked to says longer the louder and deeper.

91BLOWNBIRD
02-25-2011, 01:44 AM
I had cats into my dual in/out muffler which is in place of the resonator and then nothing after that and my car was louder WOT than my bros 66 vette with 4" side pipes and silencers

so the deeper sound comes from combining both banks into the single pipe where as true dual will be a higher pitch but flow a little better

the longer the exhaust travels the quieter the exit sound will be and the further back your mufflers are the quieter the sound

Crash00527
02-25-2011, 12:00 PM
Kool. So you of any other brand name pipes that are stainless steel that aren't dual. I think I'm gonna go the single pipe setup like our cars are now but 3"

David Neibert
02-25-2011, 05:21 PM
Yea I gotta hear some more sound clips. Some magnaflows sound slightly ricey/ European like

I know you don't get power gain unless you change the ENTIRE exhaust, like I have on my Camaro and Grand National. The only reason i want the exhaust changed IS for some better sound & air flow.

I already have kooks headers sitting in my garage for power gain.

Here's video of my SC with longtube headers 3" collectors, single 3.5" Magnaflow resonator and dual 3" Magnaflow open chamber mufflers. To me it sounds like an Infinity G35 on crack. It also has mind numbing drone.

http://www.youtube.com/watch?v=zfdSGW4pQEA

David

Crash00527
02-25-2011, 05:43 PM
Doesn't sound bad Dave. But not what im looking for. I guess I have to put a cam in or some cut outs to really get what i want ;(

91BLOWNBIRD
02-25-2011, 09:06 PM
that sounds like muffs near the rear...

I wish I got a sound clip of my turn downs...I can still disconnect the rear exhaust and get a sound clip...I might be doing that this summer cause I need to drop my tank again :mad:, but I dont think that will benefit you

it does sound sweet though, but way too much interior resonance for hwy driving

Plat0ribs
03-01-2011, 05:11 PM
Would eliminating the cats (versus a new magnaflow y-pipe assembly WITH hi-flo cats) yield any flow/power gains? Down low/up high?

I'll be replacing/installing three exhaust systems (or partially using the OE stuff if it's not too rotten) over the next year and I'd like to find the sweet spot between cost/performance/sound.

I already have the Flowmaster II kit and a magnaflow y-pipe with cats. Been following the Mandrel Exhaust Systems guys. I bought a little wire welder last year... any comments from those who bought and installed any of these or found a better idea please pipe up.

kenewagner
03-01-2011, 05:32 PM
I clicked on who cares as well. These threads all go the same way with dozens of I did it this way or mine sounds like this. I would think, in this club anyway, that there other more popular sections that could be added like

Turbo section
Power Adder section
Picture gallery. Click on wheels or Interiors, Engines, I know we have a garage section but if I wanted to see custom paint jobs, or diffrent wheels a gallery that would be more specific would be nice.

Never figured out why stuff like the 2001 - 2003 nationals are sections or Shootout 2003. A little pruning wouldnt hurt either

Ken

Crash00527
03-01-2011, 05:39 PM
No, power should be the same. You may gain and extra 1 hp. They will Just be louder because you're catless and you'll prob. have lots of drone.

It all depends on what you want the most. Power, sound, cost. I've done extensive research on various type of combination of exhaust systems and have spoken to many tech experts also from various companies and have listened to many many sound clips. The money thing isnt a big deal to me. I'd rather save up and buy the best of what I like for my car.

I've finally decided on my perfect exhaust.... Kooks SS headers, Magnaflow SS Direct fit highflow cats, Magnaflow polished SS resonator, Custom made polished SS Mandrel bent pipes (2.5" to 3" to 2.5") Magnaflow SS polished 4" round mufflers.

DLF
03-01-2011, 07:08 PM
I've finally decided on my perfect exhaust.... Kooks SS headers, Magnaflow SS highflow cats, Magnaflow polished SS resonator, Custom made polished SS Mandrel bent pipes (2.5" to 3" to 2.5") Magnaflow SS polished 4" round mufflers.

You should consider using spun metallic cats instead. There's not much room for cats, and you'll have even less with the auto tranny.

http://www.sccoa.com/forums/showpost.php?p=856135&postcount=61

Crash00527
03-01-2011, 09:11 PM
Damon told me the same thing. But my thing is, I'm getting the direct fit ones.
If i get the universal or the spun cat ones i have to build whole other pipe because I'm getting rid of every spec of stock exhaust.

DLF
03-02-2011, 12:39 AM
Damon told me the same thing. But my thing is, I'm getting the direct fit ones.
If i get the universal or the spun cat ones i have to build whole other pipe because I'm getting rid of every spec of stock exhaust.

What "direct fit ones" are you talking about? There's nothing available in stainless steel that will bolt up to the Kooks headers, maybe to the stock manifolds, but not to headers.

Crash00527
03-02-2011, 12:46 AM
yes you are correct. I failed to mention i will be getting kooks headers at a later date. now you have me thinking.... I should get the spun cats and have the custom pipe made anyway due to the fact they will actually fit the kooks.

David Neibert
03-02-2011, 11:46 AM
yes you are correct. I failed to mention i will be getting kooks headers at a later date. now you have me thinking.... I should get the spun cats and have the custom pipe made anyway due to the fact they will actually fit the kooks.

If you are doing the medium length headers, you should also consider chopping off the leaky ball and flange connection, and replace it with a v-band connection.

David

DLF
03-02-2011, 11:51 AM
If you are doing the medium length headers, you should also consider chopping off the leaky ball and flange connection, and replace it with a v-band connection.

David

+1, or real flanges....

http://www.sccoa.com/forums/showpost.php?p=843654&postcount=44

Crash00527
03-02-2011, 11:59 AM
thanks for the note. will do. i am definitely getting mid lengths due to my car being low.