Quote:
Originally Posted by Apex Motorsports
That is why you have lost power. A crossover is necessary for proper scavenging.
Your warranty can not be voided simply due to the presence of aftermarket parts. A warranty repair claim can only be denied IF the issue in question is a direct result of the aftermarket part. You can do whatever you want and your warranty is fully intact unless the mod results in a problem. All of the things I mentioned before would be fine.
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You mentioned gears as well, I was debating getting the 3.91 gears that GM Performance sells out of the ZL1, but I have seen 3.73 mentioned as well.
Since its the auto transmission, which one would I benefit more from?