The car sounds way better with the removal of 1 of the stages of the stock CATs. Throws absolutely no codes, did the install myself and had no issues at all. Uses the stock O2 sensor and settings so its a great Bolt On mod for flow and power on the new cars thats are still under warranty
Recently ordered the Remark exhaust and PRL High Volume Intake for my 2025 Si, and boy am I in love!! TSP was absolutely quick on shipping and was very quick to respond and help me out. Will continue to upgrade my car through them!
Customer service was good there was a small misunderstanding at first bout apart from that it was a good experience shopping at TSP.
Installation when well, so far no CEL.