MKperceptions offers a dedicated staff with customer service availability at extended hours. Full line of performance products from Acura to Volkswagens. Friendly and knowledgable staff that works with the customer on upgrade suggestions, research, and even product pricing. Based out of Hayward, CA.

ATP offers turbo components and complete kits for Audi and VW applications. They also offer custom fabrication. Based out of Fremont, CA.

VelocitySport offers great customer service that can help you get the most out of your VW/Audi. Very good product line and product knowledge.
Based out of Carson, CA.

Dyno Spot Racing offers performance part upgrades like intakes, cams, and chips for makes from Acura to VW. Great site layout and friendly customer service. Based out of Mountain View, CA.

Advanced Motorspot Solutions offers a full line of ABT products for VW/Audi. Great site layout, friendly customer service. Based out of Carson, CA.