Madtuner is the best online source for GM custom programming and PCM repair services. Madtuner offers high quality memory adapters for 86-93 TPI, LT1 cars and 94-95 TBI trucks. Other categories include PCM repair, dealer services, control modules and more.

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Save 5% Coupon Code

5% off

Details: 5% off all products EXCEPT core charges. If a core charge order is needed, please contact with coupon code for discount on the tuning product only. Valid through 3/31/2011.
Show Coupon Code 39% success rate
$ Off Coupon Code

$25 off $150+

Details: $25 off orders of $150 or more (excluding core charges). Expires 1/31/2013.
Show Coupon Code 25% success rate
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