Stainless Works
Stainless Power 15-17 Mustang GT Headers 1-7/8in Primaries High-Flow Cats
SKU: S00K SM15HCAT
Description
Part #: SM15HCAT
2015-18 Mustang GT headers with 1-7/8" primary tubes, 3" diameter catted lead pipes that mate to the factory connection point. Tig welded 304 stainless steel headers with 3/8" thick flanges and 3" diameter slip fit collectors with merge spikes.This system replaces the factory manifolds, and catalytic converters. Stainless Power headers are backed by a 24-Month guarantee on material and workmanship.
2015-20 Mustang GT headers with 1-7/8" primary tubes, 3" diameter catted lead pipes that fit the factory connection point. Tig welded 304 stainless steel with 3/8" thick flanges and 3" diameter slip fit collectors with merge spikes.
Fitment
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Specifications
| Brand | Stainless Works |
| Part Number | S00K SM15HCAT |
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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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