unfortunatly I had the MSDS headers on the car but I was going to sell it after I got it fixed from my electric short and so I took them off and sold them. Now I am keeping the car so I am looking for a new set. Yes they are a pin to do in the car but it only took me 3 hours to put the stock manifolds back in while the engine was in the car. I think that is excellent time since it took me almost 10 hours to put them on in the first place.