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Old 06-24-09, 07:43 PM
AuPanda AuPanda is offline
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Cadillac(s): 2009 CTS-V
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Join Date: Apr 2009
Location: L.A.
Age: 46
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Zoomer's Exhaust

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I met today with some of the guys from Zoomer’s Exhaust Works about getting a system put together for our V2s. They put my car up on the lift and proceeded to examine the stock exhaust system of the car. I think what they can put together sounds awesome, but more on that later. More than anything else I learned a lot about the “engineering” of our stock exhaust:

Our stock system is a mix of stainless steel and aluminum.
The catalytic converter comes in two parts. The first where the O2 sensor is to the engine side of the flange connection; the second looks like a canister a good foot or more after the flange.
There are crimps in the stock system, especially on the driver’s side, that narrow the flow to about 1”. The workmanship looks like crap as the tubes are bent with no consideration for air flow. There were so many crimps that it looks like a monkey went to town on the exhaust tubes with a hammer.
Unless you sacrifice ground clearance or jam the tubes closer to the body of the car (1/4” or less), there is no way a 3” system will fit on our cars from the flange back. Given the restrictions made in the crimping of the stock system, a mandrel bent 2 1/2” system would increase flow dramatically without sacrificing the daily drivability of the car.

I had a Zoomer’s exhaust on my C6 corvette and loved not only the sound but the added response was gratifying as well. You can check out their website for dyno numbers on other cars or the other forums (especially the SRT forum) for members reviews; it’s good stuff.

As I said I’m trying to convince Zoomer’s to put together a exhaust system for our car; to make it worth their while they need to sell a minimum of ten systems. I told them to count me as number one and I’d see if I can line up nine others. They told me the first ten or twenty members of the forum would get a 20% discount on the price (TBD). I would guess the price would be around $1,500 but from my experience well worth it.

So anyone else interested?