I would definately recommend avoiding these people at all costs. Rod Millen Motorsports is a better bet. More coming soon. They come highly recommended. This is a very honest aftermarket performance company with competitive pricing, great products, and on time delivery.
Powerhouse comes with the highest recommendation.
Owned by the Kwan brothers. This is another aftermarket performance company. Although I've had no direct dealings with them, they are widely recognized in the Supra community. I've had some dealings with them and have found them competent, competitive, and reasonably knowledgable.