the problem we have is the origional downpipe had a carving on the inside for a gasket to sit in it. Meaning with a gasket in and centre section to it, it sits flush and no gap for escaped gas. Also the bolts are then long enough for the spring, washer,cover and bolt to go on as the gap between the centre section and downpipe is minimal. Now on the raceland its the oppersite their is a flange facing out wich means when gasket sits into it and you join your sentre section when the bolts are in the most you can fit on is the spring as the gap between the downpipe and the centre section is bigger meaning not enough thread so need a kit that has longer thread. People must have had same problem when fitting theirs, will upload a pic tomorrow of what i looks like if it makes it easier
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