I have the Pacesetter longtubes and you do not want the Loudmouth with longtube headers. I have the SLP 2 OTL exhaust and it gets loud when you floor it but it's pretty quiet while cruising. The Hooker cat-back sounds great with headers but the Loudmouth sounds like trash.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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