So I have a 2010 cts and it's an amazing car I like fixing it to look nice on the outside. Problem now is I'm out of ideas on how to make it look nice on the outside. So I was thinking of moving into the engine part. What is yall opinion on fixing a Cadillac cts with a 3.0 engine is it worth upgrading it or did I make a mistake in not getting the 3.6 engine. For my car i was planning on buying an airaid cold air intake and a magnaflow exhaust kit. Or should I spend the money on other thing to make it more a show car and not a race car?