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Well, i purchased a bone stock 2013 ZL1 last year with 29 k miles on it right now. Two questions if i may- 1 is even though i hear the isolator spring clacking a little when fully warmed up, is it something that will fail or it may be fine fir the life of the car? Should my local chevy dealer warranty it? 2 i want to keep it close to stock and i was thinking doing an airbox and a tune only. And maybe pulleys. What company would you recommend for getting these parts. I am fully capable on install myself. Thank you for any and all reply!
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