I have a set with no cracks off a '72 GTV 2L. They run about $70-$110 used and without cracks. I'll sell you mine for $80.00 plus shipping from MPLS, MN. You can check out some aftermarket headers from Centerlinealfa.com, International-Auto.com, Alfa Recombine (?) or PaulSpruell.com. They have sets ranging from $280.00 to over $500.00. They do look neat but you might have to change some of the rest of the exhaust system to get the most out of the headers. I was tolled the stock set up is very good and performs better then some of the systems on the road today!