Under or over?

Are most people running their exhaust under or over the rear axle?

Just far enough back to meet the rules, then a 90* turn down.

K

When I saw the title of this thread, I thought it was going to be about the Great Toilet Paper Controversy.

:D

Steve

That's "fold, roll, or wad."

K

(c) in front of.

oh, and all the top wipers fold...

Priss!

Wad it up, scoop it out.....

And side exhaust, tuned length using that Header design program.

I clicked on it because I thought it was some sort of inane question about shotguns.

Alright nerds, thanks for the help. :rolleyes:

Anyone with a 2nd Gen Rx-7 have any input?

1st gen under.

(And oddly, that's the second time today I've been asked that question, and I can't remember the time before that...weird)

Quote:

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Originally Posted by Scooter

Alright nerds, thanks for the help. :rolleyes:

Anyone with a 2nd Gen Rx-7 have any input?

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Under. A 3" pipe won't fit going over the axle.

Where the pipe goes under the subframe will be the low point on the car, be prepared to replace it often :)

1st gen 3" over, and yeah, it's tight.

Quote:

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Originally Posted by Knestis

Just far enough back to meet the rules, then a 90* turn down.

K

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Same here. Little irritating in a dusty paddock space. I don't have to worry what side of the track sound is working

Quote:

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Originally Posted by mbuskuhl

Under. A 3" pipe won't fit going over the axle.

Where the pipe goes under the subframe will be the low point on the car, be prepared to replace it often :)

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The 2nd gen answer.

Ok, thanks!

Here's a quick follow-up. PRACTICALLY speaking, is it worth it to re-tune the ECU when going from one kind of high-flow exhaust to another?

I'm not talking full-stock with cats and small pipe to full-race exhaust.

I know this is percentages, and I'll probably do it anyway, but it seems unlikely to me that the maps could change that much. Anyone have experience with this?