Long Tubes or Catback? Please Help.
Race Director
Joined: Mar 2007
Posts: 11,083
Likes: 29
From: Murfreesboro TN
There was a thread about a year ago about a C6 that it's transverse leaf spring failed. The cause was the exhaust cutouts. The exhaust heat from the cutouts actually melted the leaf spring. Point being; consider where all that hot exhaust is being directed if you use cutouts.
To the OP.......I think the best advice is to listen to the different exhaust systems, both headers and axel back, and only axle back. Since the weather is turning nice, car show season will be starting soon and you should be able to listen to alot of different systems from accommodating owners. Take your time and explore all the possibilities.
To the OP.......I think the best advice is to listen to the different exhaust systems, both headers and axel back, and only axle back. Since the weather is turning nice, car show season will be starting soon and you should be able to listen to alot of different systems from accommodating owners. Take your time and explore all the possibilities.
Melting Slicks
Joined: Jul 2007
Posts: 2,027
Likes: 0
From: The Lost Borough, NYC
I remember that thread, and the picture posted in it you could clearly see the cutouts were directly 'breathing' on the rear leaf spring. I blame the mechanic for installing it that way.
Thread Starter
Racer
Joined: Mar 2004
Posts: 387
Likes: 0
From: Burlington V.T
I would't recommend cut outs. There was a c6 that came in with them that opened right next to the transmission and the drone was so bad in the car you almost needed ear plugs! Another thing that you could do is the "muffler mod." You would cut open the mufflers and remove the packing and then wrap the baffle tube with some thin sheet metal. So when the valves are closed it will be a little louder, and then the valves are open it is pretty much a straight pipe. I think cars with that the cars sound pretty mean with that done to them.
Former Vendor
Joined: Oct 2009
Posts: 68
Likes: 0
Yeah that is about what it takes to do them. Takes about 15 mins to get them out of the car and then you have to cut them open and wrap them. If you are going to do them yourself, make sure that you are handy with a cut off wheel and butt welds. It is a pretty straight forward mod, and it sounds great.
Le Mans Master
Joined: Dec 2007
Posts: 5,738
Likes: 81
From: Milford NH
Yeah that is about what it takes to do them. Takes about 15 mins to get them out of the car and then you have to cut them open and wrap them. If you are going to do them yourself, make sure that you are handy with a cut off wheel and butt welds. It is a pretty straight forward mod, and it sounds great.
Not 100% sure but I think the muffler mod is for the Z mufflers. I was told that the fabrication basically turns THEM into the NPP muffler.The reason the Z has the interior perforated pipe was to quiet the vehicle down a little from what the Z with the NPP system would not pass OEM decebel sound levels at the factory.
Team Owner
Joined: Aug 2003
Posts: 38,314
Likes: 35
http://forums.corvetteforum.com/c6-t...ing-today.html
Forget the long tubes unless you are going to be doing other mods and tuning.
Also,larry_chip, just a tip, if you have a Z06, better to post up your questions in the Z06 section of the forum.
Check out the Akrapovic systems as well, in titanium or stainless for control of the exhaust baffles.
http://forums.corvetteforum.com/c6-z...st-system.html
The titanium systems are steep in price, but they have come out with a stainless one.
Good luck.
Last edited by '06 Quicksilver Z06; Apr 11, 2010 at 06:45 PM.
Le Mans Master
Joined: Feb 2008
Posts: 5,188
Likes: 4
From: S.F. Bay Area CA.
I'm looking for some extra rumble from my 08 Z
I've heard that Long Tube Headers with NPP Fuse Pulled Pretty Good
then some people told me just to get a catback system?
there about the same price.
do i need a tune for headers?
very confused as i don't want it tooo loud!
I've heard that Long Tube Headers with NPP Fuse Pulled Pretty Good
then some people told me just to get a catback system?
there about the same price.
do i need a tune for headers?
very confused as i don't want it tooo loud!
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