I had this on my lotus until I went with a above diffuser this year. I cut it open, repacked with with stainless/fiberglass and welded it shut. Has some dings to the housing but its all hidden when installed. Could use a good polish but its very hard to see under the car as it is. This exhaust is very loud. It will require cutting your diffuser opening. Stock diffuser with nicely cut hole available for free with local pickup only.