Iv got a 04 avy 1500 216k on the clock. All iv done so far (besides regular maintenance) is just 4inch cold air intake and a single 3in straight pipe (muffler delete). Just got a used bullydog gt tuner have yet to have it unlocked so it's stock tune for now. Contemplating a corvette servo or a shift kit but wondering if it's worth it being there's a tune on the way I I want is just a little firmer shift I would like to do shorty headers in the future but typical broken exhaust manifold bolts. Anything else I can do without digging into the motor much? Gears are stock 373 I think. Everything else is stock. 265s on 18 stock wheels
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