Exhaust› Headers, Manifolds and Components
Maximizer
Exhaust Header and Downpipe System
SKU: HDS-3000GT
Moderate — 2–4 hours
Description
The header system has an inlet of 2 x 2.250 in. standard 4-bolt GTO flanges, with outlet sizes of 2.750 in. (2-bolt). The piping diameter consists of 2 x 2.250 in. pipes merging into a single 2.750 in. pipe with a welded flex pipe. It includes two O2 sensor bungs and comes with gaskets and bolts. The product claims to increase engine output and efficiency, potentially gaining 10-15 HP.
Fitment
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Specifications
| Brand | Maximizer |
| Part Number | HDS-3000GT |
| Category | Exhaust |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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