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409 Stainless Steel $ 139.95 This downpipe was developed to increase exhaust flow in the most restrictive area of the exhaust on the 97-03 Bonneville with a 3.8 SC and 3800 NA engine. This pipe was installed on one of our clients cars recently. Dyno pulls were performed before and after the install with a 10-11 H.P. increase. The Dyno Sheet shows 2 pulls blue and red before and 2 pulls green and purple after. Key Benefits
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DP8S
