Thread: will 3.5 extractors fit a 3.9?

I fitted a set of Genie extractors off a 3.9 onto my 3.5 today. The only trouble i had was the Y-Pipe does not clear the transmission sump. It is sitting against it. I've wrapped heat resistant insulating material around the pipe and used metal tape to make sure it stays there.

They bolted onto the engine and cleared the chassis rails just fine.

So i'd say it will work the other way as well. I can't see any reason why it would not.

Originally Posted by Vanderz

What kinda extra power will these give to a 3.5?

I'm not sure if they have given me much more power. But they have given me a greater power band. My 3.5 pulls harder from lower revs and is smoother up the top. The gears also seem to change better when the peddle is to the floor boards compared to the original headers.

It does give the feel of about a 15% increase in power, i just think it is the same power it's always had only it's available at lower revs now.