Hey guys I currently have a 2003 GS430. I purchased winter tires and recently bought summer tires, summer rims, and a borla axle back exhaust. I am wondering what mod I should get next? I was looking at an srt high flow intake with an ecu unit. Is this a good buy for $500?

 

SRT Intake/ecu sure made a big difference on my GS400, I installed PPE headers about a week before though so I can't comment on how good it is without the headers.

But it definitely sounds sick and the pedal becomes way more responsive

 

Beware of ordering directly from SRT, Google them and you'll think twice. Not saying anything about the quality of the product, I can't speak to that, but they've screwed over a lot of people the last few years.