Description
Overview & Specs
It’s a direct-fit bolt-on replacement for 2015–2016 Mustang GT (5.0 L Coyote), requiring cut‑and‑weld of the driver’s side OEM catalytic converter for installation.
Constructed from 1¾″ CNC mandrel‑bent tubing with a 3/8″ thick laser‑cut flange, precision‑welded and pressure tested for leak‑free fitment .
Provides 10–15 hp gains (some listings cite up to ~14 hp) as tested on dynos.
Comes in polished silver ceramic-coated finish (not CARB‑legal in California) and includes gaskets, bolts, and hardware.
Installation Notes
The kit requires cut and weld of the OEM driver-side catalytic converter—this isn’t a simple bolt-on; it must be done carefully or by a qualified shop.
Many install underneath the engine/transmission: dropping the K‑member or engine support may be required depending on configuration.
You’ll likely need a tune afterward—some users preload a tune, then fine-tune on dyno. Without it, you risk check engine lights or poor drivability.
can yield greater power and better sound potential—especially if you plan future forced induction. Shorty tuned‑length headers give modest gains but are easier to install in contrast.
Performance & Real‑World Feedback
Gains & Sound
Offers notable improvement in horsepower and torque thanks to improved exhaust scavenging.
However, paired with aggressive cat‑back systems, users report the sound can be excessively loud and raspy—suitable only if you want that raw tone.
Durability & Coating
The aftermarket ceramic coating is considered less durable than real ceramic—some report flaking or rust over time. Chrome‑ceramic variants are reportedly more robust.
Standard BBK shorty headers (non‑long‑tube) may offer better fit and fewer issues unless you’re doing full long tube installation.
Compromise Compared to Long‑Tube
Long‑tube headers (1¾″ or even 1⅞″) can yield greater power and better sound potential—especially if you plan future forced induction. Shorty tuned‑length headers give modest gains but are easier to install in contrast
Summary Table
| Feature | Details |
|---|---|
| Fitment | 2015–16 Mustang GT 5.0L (Coyote), bolt-on with driver-side cut & weld |
| Construction | 1¾″ CNC mandrel tubing; 3/8″ flange; ceramic-coated finish |
| Performance Gain | ~10–15 hp recorded in dyno tests |
| Included Parts | Gaskets, bolts, hardware |
| Installation Notes | Requires cutting factory converter; possible engine/K-member removal |
| Tune Required | Yes – for safety, drivability, and performance |
| Sound Level | Loud and raspy when driven hard; mild at idle/cruise |
| Coating Durability | Some concerns—chrome-ceramic option more robust |
| CARB Compliance | Not street-legal in California |
This Part Fits:
| Year | Make | Model | Sub-model |
|---|---|---|---|
| 2015-2017 | Ford | Mustang | GT |
| 2015 | Ford | Mustang | GT 50 Years Limited Edition |
| 2015-2017 | Ford | Mustang | GT Premium |
Reviews
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