Promise Kept – Moises Wynn's 2003 Rsx Type-S

Promise Kept – Moises Wynn's 2003 Rsx Type-S

When Moises Wynns looks at his Acura RSX, it’s more than just a car he built — it’s the physical embodiment of a promise he made to himself back in 2012. That was the year his father passed away, the same father who bought him his very first RSX. To honor that connection, Wynns decided that one day he would build the most complete Js Racing-themed RSX he could — a car that would immerse itself in the brand’s catalog and culture.

ds001090_54464784396_o.jpg

His first attempt at realizing that vision began in 2012 with a standard RSX, which he owned until 2018 before parting it out. But the idea never left him. In 2019, he came across a right-hand-drive converted 2003 RSX shell and knew it was the foundation he needed. “I’ve always been a fan of Js Racing and saw how no one would ever build a fully themed Js Racing car because the parts take years to ship,” he explains. The long waits didn’t deter him. Over time, Wynns sourced nearly the entire catalog — about 98 percent by his estimate — and integrated each piece into his overall build.

ds001237_54465144145_o.jpg

The depth of Js Racing integration is striking. Full Js Racing aero covers the exterior, from the bumper and skirts to the rear wing, accented with carbon options where available. The cabin follows the same theme with Js Racing’s steering wheel, floor mats, and engine damper under the hood. Even the braking and suspension systems feature Js Racing hardware, most notably the six-pot big brake kit up front. One of the rarest items on the car is its hood, a Js Racing/First Molding piece once featured on early demo builds — currently the only one of its kind in the U.S.

ds001146_54464782791_o.jpg

Wynns didn’t stop with catalog-inspired aesthetics. The RSX runs a Skunk2-built K-series with Ultra 2 cams, Alpha rods, and 87mm Wiseco pistons bringing compression to 12.5:1. Supporting upgrades like XRP fuel lines, a SpeedFactory custom radiator, and a ported RBC manifold paired with a Hybrid Racing throttle body help make the most of the setup, while a Js Racing FX Pro titanium header and 70RR race exhaust handle the exit. Power reaches the ground through a Comp Clutch Stage 3 ceramic clutch, MFactory LSD, and Hybrid Racing’s V4 shifter. The stance is completed with Mugen MF10 wheels wrapped in Toyo R888Rs, paired with Cusco and Hardrace suspension components to keep everything balanced.

 

Attention to detail extends to the conversion work. The shell was already right-hand-drive, but Wynns added a Type R roof swap, Type R lighting, glass, and slicktop conversion to stay true to form. Ings+1 molded rear flares add visual muscle, while Craft Square mirrors refine the purpose-built look. Inside, ICB bucket seats with Takata six-points share space with DC5 Type R rear seats, a Cusco cage, and Mugen details that continue the authentic JDM aesthetic.

 

If there’s a single thread running through the project, it’s not just Js Racing — it’s Wynns’ dedication. For him, every wait for a part, every detail of the conversion, and every choice to stay true to the theme ties back to why he started this build in the first place. “This whole build aspired from trying to make my father proud,” he says. Looking at this RSX in its finished state, we’d say that’s a promise kept.

 

⸻

 

ESSENTIALS

 

Location: Ringwood, NJ

Horsepower: 300 whp

Club: SSB

Social: IG @stussedmos_

ds001276_54464982509_o.jpg

ENGINE

Skunk2 (Ultra 2 cams, Alpha rods)

87mm Wiseco pistons

Bored head and block

12.5:1 compression

XRP fuel lines

SpeedFactory custom radiator

RBC manifold (ported)

Hybrid Racing 74mm throttle body

Unit2 Fab custom intake

Js Racing engine damper

Hybrid Racing thermostat

Hondata K-Pro V3

 

EXHAUST

Js Racing (FX Pro titanium headers, 70RR race exhaust)

 

DRIVETRAIN

Comp Clutch Stage 3 ceramic

Hybrid Racing V4 shifter

MFactory LSD

ds001121_54464783296_o.jpg

WHEELS / TIRES / BRAKES

Mugen MF10 wheels 17x8.5 +40

Toyo Tires R888R 245/40/17

Js Racing front 6-pot BBK

 

CHASSIS / SUSPENSION

Hardrace LCA

Cusco front sway bar

ds001332_54465047898_o.jpg

EXTERIOR

Championship White paint

Js Racing (First Molding hood, front bumper w/ carbon options, front fenders, rear spoiler, rear bumper w/ carbon options, side skirts w/ carbon options, rear tow hook)

Ings+1 molded rear fender flares

JDM DC5 Type R (RHD conversion, slicktop roof swap, front headlights, tail lights, glass, HID conversion)

Craft Square carbon side mirrors

 

INTERIOR

Js Racing (signed steering wheel, floor mats)

ICB front bucket seats

Takata 6-point harness

Mugen (E-brake cover, pedals, ECU brackets)

Cusco 6-point roll cage

DC5 Type R (rear seats, cluster, center console)

ds001161_54463948777_o.jpg

AUDIO / MOBILE ELECTRONICS

Pioneer MVH display

 

SPONSORS

Toyo Tires