Originally Posted by MZ DAIZY

So, after a ton reading it’s my understanding that This is going to melt my stock cats. Unfortunately, test pipes are a deal breaker for me. My HOA measures the length of my lawn, so I’m going to go out on a limb and say they aren’t going to be pleased with an open exhaust.

I’m running a FI CBE with 12” resonators, stock manifolds and cats and get the stink eye every time I cruise the hood now, mostly due to its Hilly and there’s just now way to get in or out of here “quietly”.

Do I have options other than test pipes? Will this melt Quality HFC’s?

Is there a quieter solution?

PS: unfortunately, moving is not an option at this time.