Turbo-Tuner ECU's now available for same day shipping. Retail price of $899.95 + shipping. $150.00 core charge, refundable upon receipt of replacement core. 4.4 Motronic is 999.50! Motronic 4.3 or 4.4 ECU's in stock Auto or Manual transmissions. Send in a Cashiers Check, money order or personal check with your core and receive FREE shipping!