About 8 months ago, I bought a set of stock cats really cheap off someone on My350Z. My friend and I drilled them out completely through, but I wasn't really ready to put them on the car. Since then, I've put a Borla on my car and I'm almost experiencing buyer's remorse. The sound wasn't quite as throaty as I expected. I have a few questions.

1. Will drilled stock cats make my current exhaust (Borla) rattle?

2. Should I swap back to my stock exhaust and put the drilled cats in instead, seeing as I think that might get me the sound I'm looking for?

3. Does anyone have clips of either the stock exhaust or a Borla with gutted cats?

 

I would suggest keep your borla and don't bother with the drilled cats.. I have heard from some members who did it on my350z.com that the rasp is pretty bad on the drilled stock cats

 

keep the borla and put some crawford or FI cats on there.

 

i love my turboxs test pipes w/ the borla... it's actually quiet b/c the borla sedan exhaust has a few resonators installed. if you're local just come out to the meets you can hear how it sounds

 

Thanks for the responses guys. I bought it used for a very very good price, but I also hadn't heard one in person. (I still haven't, technically. I trust very few people to drive my car, so I haven't heard it from the outside yet.) However, I'm leaning towards HFCs now. I heard an HKS in person the other day for the first time and said to myself "Now that's the sound I........can't afford." Will the HFCs get me closer?