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TH2004R

Automatic Transmission - 4 Speed

1st Gear: 2.74
2nd Gear: 1.57
3rd Gear: 1.00
4th Gear: 0.67

Reverse: 2.06

- Used in production GM model...

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RE:My Christmas present (Cant wait)

Subject: RE:My Christmas present (Cant wait)
by Skidmarks on 2005/11/29 16:49:47

Quote:

Quote:
An H or X pipe is neither more or less restrictive then the duals. What it does do is equalize exhaust pulses from side to side which allows for better exhaust scavenging from the cylinders and will also reduce some resonance.

I run 2 1/2" true duals with an H pipe. I don't have any major engine mods, but I could sure tell a SOT difference with the exhaust mod.
Do you have cats?

Well, sort of. I still have the factory exhaust manifolds and the precats that were on the front y pipe going into my duals. Basically these cats are junk and wouldn't pass a sniff test, but we don't have testing in downstate Illinois.
My exhaust guy wouldn't do the work unless I had some kind of cat on there.
They are just there to hold me over until I get a set of long tube headers and some hi-flow cats to hook into the duals.

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