This is the increasingly common practice of taking a car to one store for tires, a second store for shocks, a third store for exhaust, etc.  I recommend going to one place, either your dealer or an independent garage or mechanic, for all your automotive needs.   It's difficult to keep track adequately of your vehicle's maintenance when you divide it up among six different shops.

The $69.95 brake specials advertised by national chains stores invariably cost you more than you bargained for.  Their service writers are trained to sell more profitable add-ons when customers come in for the advertised specials.  If you refuse, they may not allow you to leave because your vehicle "is not safe to drive."

If you'd had the scheduled maintenance from your regular mechanic, you wouldn't be in that position.  It's not impossible to maintain a vehicle by using the chain stores, but it's unlikely that you'll save any money, and even more unlikely that serious problems will be detected ahead of time. 

Independent repairs shops offer competitive rates and parts prices compared to chain stores.  Most have expensive diagnostic computer systems enabling them to duplicate the work done at franchised dealerships as well.  They'll be aware of less expensive aftermarket parts that perform as well as OEM (original equipment manufacturer) parts.  They have access to technical service bulletins (TSBs) that are furnished to franchised dealers, notifying them of model-specific problems encountered by other dealers.

The only downside to independent garages is that appointments are necessary.  The backlog at busy specialist shops may be a week or longer.  However, emergencies are usually given priority over scheduled appointments. 

Source: SafeCarGuide.com