Quote:
Originally Posted by InFiD3ViL
Not sure if you have the version with the large mufflers in the rear or the 4 crimped mufflers. Supposedly the version with the 4 crimped mufflers narrow down on the inside which can be seen when trying to look through them. Does it cause loss of flow? I have no idea add it's probably unlikely for such a company to release a restrictive exhaust. It was just something going around on the forums after RPM performance posted a video about it on a boosted car. Someone else posted about it in another exhaust thread here a few days ago.
That said it definitely is one of the best sounding exhausts for our cars, especially once cammed.
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I have the four 3" mufflers, there are two ways to install the mufflers, pointy triangle shaped facing toward the headers, like a straight pipe sound, or, hollow base triangle shape facing toward headers. These small (2-3mm triangles) with the hollow base facing the headers are what gives the exhaust that muscle car rumble.
Frankenstein heads (flow about the same as factory LS7 heads) milled to 11.1 compression, Cam Motion LLSR cam with about 17-19 degree overlap IIRC.