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2008 TrailblazerSS
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413 Posts
Discussion Starter · #1 ·
Getting ready to do the rob cam which valvesprings or people using I have heard alot of people having problems with 918 springs. Let me know what you guys think.
 

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Premium Member
07 TBSS AWD
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2,178 Posts
I would use a dual spring. The Comp 921 springs are the best out there imo, but are very expensive.

PCMforless sells a dual spring kit right on their website. I used that kit and have had no issues with it after 10k miles.
 
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