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What are the logical steps for up to 100-200 more horsepower?
What are the logical steps for up to 100-200 more horsepower on a 2013 ZL1 A6 coupe? I know there are some experts on here on what makes the most sense for modifications for this platform. I also want it to sound better and have headers and high flow cats eventually, but I'm guessing those should be later on in my build and I should worry about getting more air and fuel into my motor first before getting it out.
Let's here it. I'm not really looking for brand name parts or anything like that. I'm only looking for ideas like ... add a pulley first, and a air cleaner second, and so forth ...
Thanks!
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