Hi Manuelito, I'm glad to assist you. The muffler is for the sound output. It is factory stock, with moderate, and aggressive sound output levels. The emission is not a factor when it comes to a muffler. The catalytic converter is the part that has emissions output for Federal, 46-state legal or CA emissions, and 50-state legal type. For us to carefully check and be accurate on the part you need, please provide the complete information of your vehicle (year, make, model, submodel, and engine size). The VIN would be much helpful.

Depends what state you're in

Hi Jayden, thank you for reaching out. No, it is not. The sound level of this item is moderate. You can take advantage of our 30-day post-purchase Price Match guarantee. Click this link to order this part: https://www.carparts.com/muffler/flowmaster/f1371415?can=CPAP3648_CSQA_20230507 I hope this helps. Enjoy shopping.

No it's not. Has a soft throaty sound when passing.

Yes, but too much. I. Love the sound.

Hi Dale, I'm pleased to assist you. This is a universal muffler and not specific to any vehicle. This can be used by a wide range of vehicles with a 2.5-inch inlet/outlet size. The overall length is 20 inches with 14 inches muffler body length. As Laurence mentioned, you can use a slider (reducer or expander) if the exhaust pipe is smaller or larger than 2.5 inches. If interested, use the link below to continue ordering while supplies last. Your order will come with a 30-day post-purchase price match guarantee. I hope this is helpful. Enjoy your CP shopping experience! https://www.carparts.com/muffler/flowmaster/f1371415?can=CPGG4850_CSQA_20230331

You may need to buy slide together fittings. I had to on my 2 inch exhaust.

Hi Darrell, thank you for reaching out. Per checking, we don't have a mounting kit for this universal product. We suggest reaching out to your local muffler shop for those components. Should you decide to get this universal product, you can use this link to continue ordering this part at a discounted price today: https://www.carparts.com/muffler/flowmaster/f1371415?can=CPAP3648_CSQA_20240525 I hope this helps. Enjoy shopping.

Hi Luis, I'm glad to assist you. No, this is not compatible. We don't have universal performance mufflers available for the 2001 Integra. We suggest checking the local part stores around your area on what they have available to offer you. I hope this helps, and we thank you for inquiring.