Originally posted by hinrichs
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Originally posted by hkz286
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There was nothing wrong with the Titanium exhaust by itself; the sound was awesome, it was significantly lighter than the stainless version, and the tips looked better.
It all goes back to the cutouts I installed in the midpipes last summer. Cutouts closed, no problem, but cutouts open, there is an awful drone that resonates throughout the cabin at any speed, any RPM, any load. They sound great with the engine in the upper rev range but since they're pointed at a 45 degree angle at the ground, all the sound waves bounce off the pavement and back up into the chassis. I got the idea last year to relocate the cutouts into the rear section of exhaust, just before the mufflers, and route the cutout outlet into the inner exhaust tips, essentially doing a "muffler delete on demand". This way, with the cutouts open, all the sound would be directed straight out the back of the car, past the bodywork, eliminating some of the resonance inside the cabin.
This is all well and good but the cutouts and associated v-bands are made of stainless steel, and the Titanium exhaust is...titanium. They haven't yet developed a method to weld dissimilar metals yet, so I made the decision to sell the titanium and install a stainless OEM exhaust. I have yet to move the cutouts because I first want to experiment with the sound. The sharp eyed readers will recall that I got a free OEM stainless axle back from the guy who bought my Z06 stuff - I chopped the mufflers off those pipes and am in the process of building straight pipes that will mimic the sound of the "muffler delete on demand" axle back. If the sound is good, I will have enough evidence to move forward with the cutout relocation. At that point I can probably sell the straight pipes for a nice little profit.
So, yeah.
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