Project R35 GT-R, Saving Weight With a Greddy Titanium Exhaust System!

Project R35 GT-R, Saving Weight With a Greddy Titanium Exhaust System!
Greddy’s V-band clamps are lighter and more compact than traditional V-bands.
The first thing we had to do was remove the stock exhaust. Here Howard removes the Verus Engineering belly pan we had installed in our last segment before starting on the exhaust.
Next Howard sprays rust penetrant lubricant on all of the bolts that need to be removed.
Howard loosens the bolts that hold the Y-pipe to the downpipes.
Howard now removes the bolts that hold the Y-pipe to the mid pipe. The factory Y-pipe can now be removed.
As you can imagine, the Greddy part on top is a lot lighter and freer flowing than the stock bottom part.

The cross-sectional area of the factory Y-pipe is really small for a car of this power output.  Look at the tubing in the area of the flex joints.  It is a lot smaller in diameter! It is a lot lighter too, 5.6 lbs vs 28 lbs!

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6 comments

  2. It’s running the front cats. Most of the weight reduction is still coming from the material selection.

    Reply

  4. It would be cool to see GReddy come out with a side-pipe kit for the GTR, where the exhaust comes out right behind the front wheels. That would save more weight, and require less material. I imagine the sound in the cabin would be brutal.

    Reply

    1. It’s pretty technically impossible to do on a street car, it would involve cutting holes in the unibody.

      Reply

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