I have a 94 buick regal limited with low k and in great condition. Ive done many upgrades to the exterior and sound system. Im now considering some engine mods but im really not sure where to go. I know lots of people mod their 3800 series 2 but not many mod the series 1. Im thinking intake and exaust but i know that wouldnt be cheap and i know from looking online that they done make headers for this engine. So im really just curious what people think and if you have any suggestions. Im open to anything

I attached a pic so you can see the exterior is ready go to but the engine is completly stock