Finding the right auto rally parts for your build means balancing performance with durability and style, especially when you demand the precision and presence of premium carbon fiber components.
We focus on upgrades that actually enhance airflow, reduce weight, and sharpen handling—all without sacrificing fitment or everyday usability.
Here’s what matters most for enthusiasts who want function and form to work together from street to stage.
1. ASM Design Dry Pre-Preg Carbon Fiber Aero Kit
Every ambitious rally build demands control, balance, and lighter weight. Aero is not about looking good for the camera. It’s about functional stability at high speed, precision through corners, and real weight savings. This is why carbon fiber changes the game.
Why invest in advanced carbon fiber aero?
- Stability: High-speed control increases with actual downforce and reduced drag.
- Turn-In Precision: Lower polar moment improves responsiveness during snap direction changes.
- Serious Weight Savings: Pre-preg carbon drops pounds where it counts, especially high on the chassis.
We’ve spent years refining our ASM Design Dry Pre-Preg Carbon Fiber Aero Kit to deliver results for true performance junkies:
- Aerospace-grade, autoclave-cured carbon means you get reliable stiffness and durability. Say goodbye to yellowing, delamination, or warping after a few hard seasons.
- Install is straightforward because we’ve made each kit model-specific. Bolt-on hardware, minimal trimming, with an OEM-plus fit and finish.
- Our UV-stable clearcoat fights sun damage and stands up to daily abuse. No brittle, cheap gloss here.
- 24-month warranty backs you up. If a problem crops up within two rally seasons, we made sure you aren’t left in the lurch.
When you move to pre-preg carbon, you’ll feel a lower center of gravity and an extra margin of confidence during bumpy stage transitions. Even better, you can keep resale value because you won’t hack or drill the car to make stuff fit.
Upgrading with aerospace-grade carbon fiber isn’t just a style flex; it’s about all-weather speed and repeatable control.
Key Takeaways
- Choose proven carbon fiber solutions with real engineering behind the weave.
- Prioritize model-specific fit and warranty for hassle-free daily or stage use.
- Don’t accept fitment compromises if you’re serious about rally performance.
2. Gloss Black ABS Splitters and Lips With Skid-Friendly Profiles
Sometimes rally means gravel. Sometimes it means curbs, debris, and daily-driver reality checks. That’s where ABS splitters and lips beat fragile, expensive parts.
High-quality gloss black ABS delivers:
- Curb-strike resilience without racking up a repair bill.
- Fast, visible aerodynamic benefits at the front axle to reduce front lift and help your car stick into high-speed corners.
- Sacrificial protection for the bumper and paint—ideal if you cycle between carbon aero for events and ABS for day-to-day punishment.
We back every gloss black ABS component with same-day dispatch, consistent fitment, and a clear warranty. Our support team is available 24/7 for any install question.
Splitters do more than protect paint:
- They decrease front-end lift, improving grip at pace.
- They mount up and swap fast—bring a spare to events.
- ABS is easy to keep clean and shrugs off salt or mud in rough conditions.
ABS splitters match our carbon upper pieces for a cohesive stance but handle the punishment when the road disappears.
3. Valvetronic T304 Stainless Cat-Back Exhaust Systems
You want power gains, faster spool, and a true rally bark? The exhaust isn’t subtle, and that’s because it shouldn’t be.
Valvetronic T304 stainless cat-back systems give you:
- Lower backpressure, which means sharper throttle, quicker spool, and more power up top—even before maps.
- Quiet mode on demand, wild mode for the stages. With support for factory drive modes, you control noise and flow.
- T304 stainless for lifetime corrosion protection. Mandrel bends keep flow high. Powerful sound, no drone.
- A strong warranty for as long as you own the car section.
Drop a few kilos off the car. Wake up the driving experience. Run in stealth on the commute. Open it up for full attack. A Valvetronic cat-back is ideal for daily-driven rally builds where you want expressive sound and serious durability.
Switch from quiet to wild at the push of a button—tune your stage presence, don’t settle for just one tone.
4. High-Flow Sport-Cat or De-Cat Downpipes for Turbo Platforms
Turbo builds chase two things: more power and faster spool. Downpipes do more than just free up sound—they open the bottleneck where it matters most.
Key benefits:
- 200-cell sport cats offer a real flow increase with some emissions control—ideal when you need to keep things legal but competitive.
- De-cat pipes maximize exhaust flow and turbo response when ultimate output matters.
- Thick-wall 304L stainless and CNC flanges mean no warping, no leaks. Built to survive stage heat cycles.
- Expect strong midrange torque, boost that comes in sooner, and a deeper, more aggressive note.
Best for S58, S55, and other turbo rally platforms moving from stock to Stage 2. Add a tune and you unlock big, reliable gains.
When Downpipes Make Sense:
- Pair with cat-back and intake for highest return.
- Heatwrap near fluid lines to protect sensitive parts.
- Always check for CEL triggers—tuning or sensor simulators may be needed.
5. Forged Monoblock Wheels for Tarmac Control and Unsprung Weight Reduction
Every millisecond counts in a rally sprint. Unsprung weight is your enemy, and weak wheels can’t survive real punishment. Forged monoblocks answer both.
With the right forged wheel, you unlock:
- Instant steering response and faster suspension action on broken surfaces.
- High impact resistance to survive pothole hits mid-stage.
- Custom specs for every application: up to 23-inch diameters, tailored widths, and color to match.
ASM Forged Wheels use premium 6061-T6 aluminum. That means tight tolerances, lean spokes, and a finish that shows you know speed and style can coexist. Choose tarmac for a big brake kit car, or fit to your fast-road build for sharper handling.
Keep a spare, always torque to spec, and watch your tire temps if you swap diameters.
6. Gravel Rally Wheels in 15×6.5 and 15×7 Rally-Safe Fitments
Gravel eats soft, undersized, or poorly engineered wheels. Go for rally-proven specs if you want to finish what you start.
Here’s what matters:
- 15-inch diameter means tall sidewalls and better rim protection. No instant flats.
- Proper offsets (ET38–48) in 5×100 or 5×114.3 ensure correct geometry for grip and no rubbing.
- Reinforced barrels and rally white finishes boost reliability and make damage easy to spot in service.
- Check the fit for your Subaru GC, GD, or VA if you run classic rally platforms.
Don’t just choose based on look. These wheels exist for survival. Bring spares, mark your sets, and rotate often.
Gravel wheels are your shield—neglect them and every other mod falls apart.
7. Rally Tires for Tarmac and Gravel
Tires are your connection to the surface, period. Wrong compound, and you waste suspension and power upgrades.
Rally tires break into two worlds—tarmac and gravel. Each needs different attributes for grip, durability, and predictability.
Tarmac Rally Tires
Tarmac means constant side load, heat, and surface changes. The right tire brings consistent grip, stable shoulder support, and the right compound for stage length.
- FIA-type tread layouts maximize contact and shoulder strength.
- Wet, soft, and hard compounds let you dial performance to the day—no more skating on the wrong rubber.
- 18-inch sizes suit modern cars, but always keep overall diameter close to stock to guard ABS and speedo accuracy.
Gravel Rally Tires
Gravel is war. You need reinforced sidewalls, widely spaced blocks, and sipes that actually grip loose ground.
- Asymmetrical tread patterns improve braking and reduce stone retention.
- Big, molded shoulders shrug off roots and rocks.
- 15-inch sizing allows a taller, compliant sidewall for shock absorption.
Quick tire tips:
- Check tread temps after each run—aim for balanced heat across the profile.
- Rotate sets with discipline. Uneven wear means lost seconds.
- Stock spares and keep valve stems robust—quick changes win rallies.
The right tire does more than bite—it protects every part you’ve upgraded.
8. Gravel and Asphalt Coilovers With Inverted Monotube Struts
You cannot outdrive bad suspension. Coilovers tailored for gravel or tarmac will define your stage pace.
Choosing Rally Coilovers
Go inverted monotube for max rigidity. You need stroke, damping adjustability, and mounts that live through hits.
- Rebound and compression tuning lets you set up for ruts or high-grip sweeps.
- Asphalt kits offer sharper roll control; gravel kits focus on compliance and stroke.
- Modular top mounts and bump stops let you switch setups for stage or street.
Before each event, check damper settings, preload, and ride height. Always document your base settings so you can return to what works.
Service discipline:
- Inspect for leaks, bent shafts, or failed bushings after rough events.
- Use proper bump stops and dust boots every time.
9. Skid Plates and Underbody Protection
Oil pans and differentials take a beating on real rally roads. Skid plates turn catastrophic hits into near-misses.
Protection Done Right
There’s no point in upgrading power if a rock punches a hole in your engine.
- Steel wins for toughest protection. Aluminum keeps weight down and resists rust.
- Full coverage: focus on sump, transmission, diff, and tank.
- Sturdy mounts, reinforced edges, and service cutouts cut downtime and stress.
A single punctured oil pan and lost day costs more than a full armor kit.
The stage is always rougher than expected. Bulletproof your underbody so you can drive flat out.
10. LED Light Bars and Pods With Amber and Vehicle-Specific Mounts
Visibility saves lives—and seconds. Modern LED rally lights boost confidence on night, dust, and fog stages.
Lighting Essentials
Light up what you need. Amber cuts dust glare. Spots punch down long straights. Floods cover corners and service.
- Match bar shape and mount to your vehicle for vibration-free installs.
- Use vehicle-specific wiring kits—no field fixes under time pressure.
- Prioritize high-output, sealed units with adjustable beams.
Recheck aiming every event. Loose pods or bad angles cost you time.
11. Safety Essentials: FIA-Style Seats, Harnesses, and Roll Cage Padding
You can’t focus or push hard if your seat, belts, or cage foam are sketchy.
Essentials for Stage Safety
Real FIA fixed-back seats support you through everything. Harnesses keep you anchored during jumps or slides. SFI padding prevents injury from hard impacts in the cabin.
- Seats must bolt to the chassis with reinforced plates—no shortcuts.
- Harnesses need proper angles and expiry dates. Keep a log, and don’t use worn webbing.
- Roll cage padding in all strike zones, nothing unapproved or homemade.
Carry quick-release tools and first aid kits. Visibility tags or logs help your crew and scrutineers inspect fast.
You get one chance to walk away from a crash. Prep to a higher standard than the rules.
Navigation, Timing, Vinyl, and Platform-Specific Prep
Winning requires discipline off the track too.
Stage Tools and Details
- Rally computers and programmable shift lights are not luxuries; they sharpen pace notes and optimize shift points. Install securely and wire with protection from dust and vibration.
- Number backers, livery vinyl, and mudflaps aren’t just for show. They protect paint, meet scrutineer checks, and make quick service easier.
- Add roof scoops for ventilation when A/C is gone. Plan airflow for both comfort and focus.
- Use aggressive brake pads and slotted rotors for fade resistance. Track wear, torque wheels, and check underbody bolts pre-stage.
Small prep steps stack up over a rally weekend, turning average results into podiums.
Conclusion
Building a winning rally car takes clear choices. Prioritize fitment, engineered materials, and proven solutions. Each part must support performance, durability, and your driving confidence. Our ASM Design carbon fiber aero, gloss black splitters, and forged wheels have been engineered by rally obsessives for drivers just like you. Choose what suits your build, dial in your setup, and take every stage with total confidence.
