SSAC (ebay) header install

I plan on purchasing (according to tstars recommendation:
Exhaust manifold gaskets G.M. PN 12558573(old) New is 12600530
AIR tube gaskets
3" high flow cats’ 3" Thunderbolt cats from Performance-Curve.com. They're $36.95 each for ceramic cores, $60 for metal cores.
6 x 3" stepped band clamps Summit P/N WLK-33272
2 x 2.5" stepped band clamps Summit P/N WLK-33226
2 x 3"-2.5" cone reducers Summit P/N FLO-R3025
2 x 10” (approximate) 3” Pipe
Optional – Ball and Socket Flange Summit P/N FLO-15925
Which I hope will finish off the system, it's going to be a weekend install with a friend and neither of us have done this before.
Now for some questions...
I currently have a set of B&B Bullets, should I be using reducers? I was under the impression that the bullets were 3" so I could go 3" all the way back?
I'm not sure which cats to get, I don't know if the metal cores are better or the ceramics are the way to go?
I will also be installing a new tunnel plate, can anyone recommend a good inexpensive plate? I don't care about reducing heat, just stiffening the car.






Here is the stock system that I replaced (you loose ~ 30 lbs going with headers and no cats):

Typical installation can be completed in a day. Take the coil packs off the valve covers, drop the starter out of the way, and jack the driver's side of the engine up a few inches. Good luck.
Last edited by chevy406; Dec 11, 2007 at 12:27 AM.
4th--I used 3" pipe all the way from the collectors to out the back - Up and over the half shafts--Including 3" cats---3"pipes are a real tight fit up and over the shafts & around the trans pan-- it took a long time on the bender to get them so they wouldn't hit anything--They aren't pretty either as there were some tight bends--In hindsite i would use 2 1/2" just past the cats or if you can get it 2 3/4" to make it easier--

Here is the stock system that I replaced (you loose ~ 30 lbs going with headers and no cats):

Typical installation can be completed in a day. Take the coil packs off the valve covers, drop the starter out of the way, and jack the driver's side of the engine up a few inches. Good luck.
Nice system, thats a great price. I just put on new gaskets because of the h/c install that I did, I'm hoping they can be reused.
4th--I used 3" pipe all the way from the collectors to out the back - Up and over the half shafts--Including 3" cats---3"pipes are a real tight fit up and over the shafts & around the trans pan-- it took a long time on the bender to get them so they wouldn't hit anything--They aren't pretty either as there were some tight bends--In hindsite i would use 2 1/2" just past the cats or if you can get it 2 3/4" to make it easier--
-Remove the alternator
-Remove both sets of coils off both valve covers.
-Remove the dipstick
-Remove the groundstrap underneath the drivers side manifold
-Remove the passenger side valve cover only
The drivers side header slips in through the bottom and the passenger side goes in through the top. (car only needs to be about 1 1/2 ft off the ground)
You will have to message the a/c line on the passenger side (you will see this when you get to the point and understand what im talking about)
Thats about it for all the tricks, anything else u need to know feel free to pm me or the many others that have completed this install....good luck, its not that hard
The Best of Corvette for Corvette Enthusiasts
Now I just need to wait for better weather to install them!
....just curious, are you a lawyer?
I have an aftermarket X pipe I want to keep. Other than that, it will be the same setup: Headers, 97 with AIR system, and 3" metallic cats. I will be doing a rear O2 delete.
I gained 20 RWHP after tuninig--I believe your cat-back system already comes over the half shafts--so you're all set-
the only things i would like to be clamped are from the header collector to the 3 inch pipe that comes off that that turns into the 2.5" pipe, and then clap from the x pipe to the new 2.5" pipe...
anyone that has installed, them, do you have pics or can shed some light on what you did?
the only things i would like to be clamped are from the header collector to the 3 inch pipe that comes off that that turns into the 2.5" pipe, and then clap from the x pipe to the new 2.5" pipe...
anyone that has installed, them, do you have pics or can shed some light on what you did?
so 2 3" flanges for the headers, 2 more for the connecting pipes and then just clamp the x pipe?








