David at MDR Performance in Kemah, Texas fabbed up and installed a custom 3 1/2" aluminum exhaust for my car last week, and I thought I would share some pics. It came out very nice.

I wanted to bring my external dump into the exhaust, so we upped the diameter on the exhaust by 1/2", and attached it all with V-Bands. This is the second exhaust David at MDR has made for this car. The first, and the one we replaced, was a 3" stainless. He did a real nice job keeping bends to a minimum.

Yes, it is loud.

Building the 3" to 3 1/2" expansion, using a vibrant stainless cone:


The starting point for the 3 1/2" stainless test/merge pipe:


The finished test/merge pipe:


Laying out the exhaust on the shop floor:


The test/merge pipe on the car for fitment:


You can see its a tight fit, but it clears everything just so:


Another clearance pic:


In the vice for final welding:


Tail pipe section, out of 1.5mm tube:


Video clip on Cobbs Dyno:

 

Looks gigantic.

But hell, pipe is pipe. I'm going to get some welding done on my down pipe too, when I reroute my EWG, so it's always interesting to see the end result.

 

sounds good

 

Any rear bumper pics?