Quote:
Originally Posted by SumAznGuy
In my other post, picture one. There is the oval thing just before the big round thing at the end.
That is where you bolt the exhaust to the exhaust manifold.
Your stock exhaust may be one piece, but it is not one piece with the exhaust manifold and cutting is not required.
The flange is to your left in this picture.
They only chopped the rear pipe from the exhaust because it would have been that much longer.
I repeat for the last time, no cutting is required unless you plan on keeping the stock exhaust.
Here is a better pic of the stock exhaust uncut.
And here is a pic of the flange that bolts onto to the stock exhaust manifold.
 |
I did some more research...
It seems like all the aftermarket bolt-on exhausts (borla, magnaflow, racing beat) are designed to keep the (2nd) OEM cat.
Which makes sense as they're cat-back systems.
Those aftermarket exhausts only come with a resonator and a muffler,
besides the Corksport which gives me either a test pipe or high-flow cat to replace my 2nd OEM cat.
So CS is more like a de-cat, as someone mentioned earlier, rather than a cat-back.
I think the "flaw" with my car's exhaust is that the flange is before the 2nd cat. Not after.
Therefore there's no way to keep the 2nd cat without cutting.
The instructions for every aftermarket exhaust tells me to make a cut after the 2nd OEM cat.
I don't seem to have much of a choice unless I buy an aftermarket cat.
But on the flip side, if I must cut, what's the worst that can happen?
If I ever need to go back to stock, is it as simple as a welding job?
Quote:
Originally Posted by SumAznGuy
As for pipe diameter, don't worry too much about it. You are not racing the car so don't worry about every last HP. And you, with the larger diameter piping, you will lose some torque as there is less back pressure.
The Corksport is 2.4 inch ID, which should be plenty fine and not too big that you'll lose too much torque.
|
Lose torque as in, compared to my stock exhaust?
or lose torque compared to a smaller ID aftermarket exhaust?
I'm not racing, so I don't need to squeeze out every bit of HP,
but it seems kind of counter-productive if I'm getting less torque than stock.
won't that mean it's harder to pass traffic with an aftermarket exhaust?
Also, what is BC's stance on aftermarket exhausts and SRI, etc.
California seems pretty anal with their CARB law, but does BC have something equivalent to it?