Quote:
Originally Posted by MBaseman
What do you plan to do with this car? I would recommend going with high flow cats if you plan to drive around on the streets. The power difference is minimal, but they really help to keep the gaseous/noxious smells under control. They will quiet the exhaust down a bit as well, which could be a good or bad thing, again depending on what you are looking for.
Do you need to pass emissions? If yes, then don't go catless...
And yes, you should install all of your power mod's prior to getting your tune. At least this 1st round of mod's. Do the CAI, headers, etc and then tune it when you're done. If you add something after the tune, then you'll have to retune to get the best results.
Tune is the last piece of the puzzle after each round of mods.
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I'm honestly looking for a really nice/ loud exhaust. I'm curious to how the kooks LT headers with cats sound, but either way at least the ZL1 has the NPP exhaust so if it's too loud, i'll just keep the flaps closed. Yeah i mean i guess if i get the offroad pipes, getting an inspection would be a problem. How do you even go about that? And I'm still confused on which intake to get because K&N is like 900$ which is ridiculous.