It would help if you'd give some info on what kind of engine you have, Franko. If it's not a high-winding hotrod, 1-5/8" headers are fine. I've never had any problem with any 1-5/8" headers I've used on a Camaro. I've run a lot of brands over the years. It's when you get into the bigger tubes that you run into problems. I can tell you that 1-5/8" Cyclone and Hedman will fit with no problems or surprises because I've run them both. Hope this helps.