WEDS REV CATALYZER FOR SUBARU IMPREZA STI E F G GDB RCL-S005

 

WEDS REV CATALYZER FOR SUBARU IMPREZA STI E F G GDB RCL-S005

Best advantages of the WEDS Rev Catalyzer (RCL-S005) for Subaru Impreza STI (GDB, EJ20 6MT)

• Lower back-pressure / better flow — uses large, low-resistance cells (about 200 cpsi vs ~400 cpsi on a stock unit), so exhaust flow is much freer which helps power and throttle response.  
• Higher power & quicker response — the reduced pressure loss and larger cell diameter are advertised to produce noticeable gains in mid/high RPM power and quicker engine response vs the stock catalyst.  
• Street-legal / inspection compatible — Weds markets the RevCatalyzer as meeting vehicle-inspection / safety standards (so it keeps you within emissions/regulatory limits while improving flow).  
• High purification performance (precious-metal coated) — despite the lower cell density, the honeycomb is metal-coated with precious metals to maintain strong catalytic conversion / emissions control.  
• Durable stainless construction — made from SUS304 stainless steel for good heat resistance and corrosion resistance (longer life under turbo/high-temp use).  
• OEM-fit / bolt-on for specific GDB variants — designed and sold specifically for the GH-GDB (applied codes E/F/G) 6MT models — easier install and correct fitment.  
• Aftermarket availability / known pricing range — sold through Japanese performance parts sellers and marketplaces (expect OEM-quality pricing; used/new listings appear on sites like eBay and Japanese shops). 

WEDS REV CATALYZER FOR SUBARU IMPREZA STI E F G GDB RCL-S005

COBB NISSAN REDLINE CARBON FIBER BIG SF INTAKE SYSTEM GT-R 2008-2 SKU: C-7C1250

 

COBB NISSAN REDLINE CARBON FIBER BIG SF INTAKE SYSTEM GT-R 2008-2 SKU: C-7C125

Here are the key advantages of the COBB Tuning Nissan Redline Carbon Fiber Big SF Intake System ( 2008-18 GT-R, SKU 7C1250), especially for a car like the Nissan GT‑R (R35) — followed by some caveats to keep in mind for your build.

✅ Advantages

1. Increased airflow capacity / “headroom” for the MAF sensor
   
• The intake uses 3.0-inch diameter carbon fibre tubing, which increases the cross-section of the intake path.  
• That means the stock mass-air-flow (MAF) sensor has more “headroom” — it can stay within its optimal operating range even when the engine is pulling more air.  
• According to COBB, they’ve used this intake to support builds of over 600 hp and 600 lb-ft at the wheels on the GT-R, roughly a ~40% gain compared to stock (under the right supporting mods).  
• For your use case (you like aggressive, high-performance builds), the extra airflow capacity is a good match.
2. Lightweight, premium materials & aesthetic upgrade
   
• Carbon fibre tubing reduces weight compared to stock/intake-systems with heavier materials. While a full figure isn’t always published, lighter intake assemblies reduce overall mass and inertia of the airflow path. (Carbon fibre is referenced in the spec sheet.)  
• Visually, the carbon fibre and polished / black clamps give an upgrade in under-hood looks, which matters if you show the car or just like refined parts.
3. Better induction sound / driving “feel”
   
• The description mentions “Increased induction sound” and more audible turbo spool / bypass valve sound.  
• While sound alone isn’t performance, for a driver looking for excitement this enhancement helps the sensory experience.
4. Reusable, cleanable filter and “no cutting/trimming” install
   
• The kit includes a pre-oiled, cleanable & reusable custom filter element.  
• Install is designed to require no bumper skin removal or major trimming — it’s intended as a “bolt-on” upgrade.  
• For maintenance and long-term use that’s a plus: cleaner filter replacement, better quality clamps and silicone couplers.
• The materials for couplers: 3-ply steel reinforced silicone.  
5. Tuning support and compatibility
   
• COBB offers off-the-shelf (OTS) maps for their intake (for the key car/ecu combinations) which helps reduce tuning complexity.  
• The “car from stock to big power builds” tagline emphasises it can be used on a relatively stock setup, but is also suitable for further upgrades down the line.  
• This aligns with your build philosophy (you like high-performance parts).

⚠️ Things to Consider / Caveats

• Even though the airflow capacity is increased, the actual performance gain will depend a lot on what else is done (turbo system, intercooler, exhaust, tuning, etc). It’s not simply a huge hp number by itself.
• Because the MAF sensor behaviour is changed, proper tuning or use of the correct map is critical. A poor tune can result in poor air-fuel ratios, hot intake temps, etc.   
• Intake heat soak / hot air ingestion: Although the kit includes quality materials, as with all air-intakes one must think about intake air temperature (IATs). If the intake draws in hot ambient or engine-bay heated air it can reduce performance, particularly in a turbo car.
• Fitment / clearances: Even though no trimming is required, you should still verify fitment in your local region — climate, installation conditions, local parts availability (carbon parts, clamps, etc).
• Emissions / legality: The kit states “50 State legal when used in accordance with OEM guide” and has CARB Executive Order D-660-63.  
• Cost vs benefit: Carbon fibre intakes tend to be premium priced. Ensure the cost aligns with the “value” for your build objectives (agility, cornering, raw power) and maybe compare with other intake systems to see cost/performance trade-offs.

COBB NISSAN REDLINE CARBON FIBER BIG SF INTAKE SYSTEM GT-R 2008-2 SKU: C-7C1250

 

AIRTEC MOTORSPORT AUDI RS6 C8 SIDE INTERCOOLERS (PAIR) SKU: 422544

If you’re considering the AIRTEC Motorsport Audi RS6 C8 side intercoolers (pair, also listed under part number ATINTVAG47), here are the key advantages followed by a few considerations (especially relevant if you’re into performance-tuning).

✅ Advantages

1. Increased capacity (~21%)
   The core design is deeper compared to OEM, providing about a 21% increase in overall capacity. 
   More capacity means more coolant / more air volume, which can reduce charge air temps (IATs) under load.
2. Improved cooling efficiency during heavy use
   AIRTEC report data-logging: when the turbo outlet / pre-intercooler temps rose by nearly +170% in a short time, their upgraded intercooler kept the post-intercooler air temps steady (no abnormal spikes). By contrast the OEM units showed larger spikes (~60% higher than the AIRTEC ones). 
   For high power or track/extended hard driving, that means reduced heat-soak risk and more stable performance.
3. Direct-fit with reuse of OEM hoses, mounts & air guides
   The unit is designed to fit into the stock location (same width/height, but deeper core) and uses the original boost hoses, mounting points and air-guides. That makes installation easier and retains much of the stock “fit & finish”. 
   For you (with performance car background), less fabrication is a bonus.
4. High-flow end tanks & quality finish
   The design includes high-flow, cast/ported end-tanks to ensure the core is fed and drained efficiently, reducing flow restrictions. Also coated in powder-black finish for durability and aesthetics. 
   Good when the engine is working hard and you want consistency.
5. Good for fast-road or track use
   They specifically say it’s developed for “track or fast road use” for the Audi RS6 C8/Audi RS7 C8.  

AIRTEC MOTORSPORT AUDI RS6 C8 SIDE INTERCOOLERS (PAIR) SKU: 422544

STI PERFORMANCE MUFFLER FOR SUBARU WRX VB ST44300V2000

 

STI PERFORMANCE MUFFLER FOR SUBARU WRX VB ST44300V2000

Here are the edge advantages (concise, buyer-facing) for the STI Performance Muffler for Subaru WRX VB (ST44300V2000).

Edge advantages

• Cleaner, more efficient flow — engineered internal geometry reduces backpressure vs stock muffler, allowing the turbo and engine to breathe a little freer for small gains in power and throttle response.
• Sharper throttle response — reduced exhaust restriction and improved scavenging often translate to a snappier feel off the line and through the mid-range.
• Sporty, OEM-refined exhaust tone — tuned to give a fuller, deeper note that’s performance-oriented without being obnoxiously loud for daily driving.
• Bolt-on fitment / factory mounting points — designed for direct fit to WRX VB underbody (no major fabrication), which lowers install time and cost.
• Durable construction — typically built from corrosion-resistant alloys (stainless or similar), improving longevity in wet/salty environments.
• Weight saving over stock — lighter internals and simplified body reduce overall weight, helping unsprung/vehicle mass slightly.
• Improved turbo efficiency — smoother exhaust flow can help the turbo spool more efficiently, especially under sustained load (may be noticeable on tuned cars).
• Balanced street & track usability — offers a performance character that’s usable daily but still satisfying on spirited drives or on the track.
• Aesthetic & resale appeal — OEM-style performance parts from STI add perceived value and credibility for buyers who want authentic upgrades.
• Low maintenance / serviceable design — many performance mufflers use replaceable hangers and straightforward clamps, making future swaps or servicing easier.

Short buyer notes / caveats

• Power gains from a muffler alone are modest — best seen when combined with intake, tune, or cat-back changes.
• Check local noise and emissions laws (some regions require sound or emissions compliance).
• Confirm whether the unit is cat-back or muffler-only/axle-back for compatibility with your current piping or catalytic converter setup.

STI PERFORMANCE MUFFLER FOR SUBARU WRX VB ST44300V2000

LAILE BEATRUSH HEAVY DUTY ENGINE MOUNT SET FOR LANCER EVO 7 8 9 CT9A S143055BC-A

 

LAILE BEATRUSH HEAVY DUTY ENGINE MOUNT SET FOR LANCER EVO 7 8 9 CT9A S143055BC-A

These are advantages (plus a few important cautions) for the LAILE / BEATRUSH Heavy Duty Engine Mount Set — S143055BC-A (Evo 7/8/9 CT9A).

“Reinforced Duracon heavy-duty mounts that drastically reduce engine movement for sharper throttle response, improved traction and more consistent drivetrain geometry under track/spirited driving”.

“Race-oriented construction — significantly stiffer than OEM, so expect increased NVH and verify legal/road use in your area.”  

Key advantages

• Greatly reduces engine movement under hard acceleration, braking and cornering — the reinforced rubber/Duracon construction is much stiffer than OEM rubber so the engine stays put.  
• Improved throttle (on/off) response — with less engine roll the driveline reacts faster, making throttle inputs feel sharper and more direct.  
• Better traction and torque transfer — reduced engine movement means less energy lost to oscillation, so more of the engine’s torque gets to the wheels instead of being absorbed by mount flex. This helps launches and hard acceleration.  
• More consistent drivetrain geometry — the engine stays in the correct position which helps keep transmission, shift linkages and axles operating at intended angles (benefit for precise shifting and reduced drivetrain stress during aggressive driving).  
• Rugged, race-oriented construction — made for competition use (stiffer material and reinforced design), so it’s more durable under track/competition loads than stock soft rubber mounts.  

Useful secondary benefits

• Can reduce wheel hop tendency in high-torque launches by keeping the engine/transmission stable.  
• Improved steering feedback/feel for some drivers because the whole drivetrain behaves more predictably when the engine isn’t shifting under load.  

Important cautions 

• Much stiffer than OEM — that stiffness improves performance but increases NVH (noise, vibration, harshness) and can make the car feel harsher on the street. Several sellers note these are race-grade and “super stiff.”  
• May transfer more shock loads into chassis and drivetrain — which can accelerate wear of other components (mount brackets, transmission bushings, CV joints) if not monitored.  
• Legal / road-use restrictions — some sellers warn these items can be restricted or not recommended for normal road use in certain countries. Check local rules and intended use before fitting.  

LAILE BEATRUSH HEAVY DUTY ENGINE MOUNT SET FOR LANCER EVO 7 8 9 CT9A S143055BC-A

APEXI N1 EVOLUTION EXTREME CAT BACK EXHAUSTSYSTEM FOR TOYOTA GR COROLLA 4BA-GZEA14 G16E-GTS 167-T008J

 

APEXI N1 EVOLUTION EXTREME CAT BACK EXHAUSTSYSTEM FOR TOYOTA GR COROLLA 4BA-GZEA14 G16E-GTS 167-T008J

👍 Key Advantages

1. Premium materials & build quality
   
• The system is constructed using SUS304 stainless steel (tig-welded) which gives very good durability, corrosion resistance and heat endurance.  
• The tail tips are of lightweight titanium (in some variants) rolled & riveted onto a double pipe structure that acts as a diffuser for heat reduction.  
• Made in Japan, which for many JDM performance nuts adds confidence in the fitment, manufacturing and finish.  
• Fitment is chassis-specific (for select models) so you get a proper “bolt-on” feel. For your GR Corolla example: part 167-T008J, piping diameter etc specified.  
2. Performance oriented flow design
   
• The layout uses a straight-through muffler design, which helps reduce back-pressure and improves the efficiency of the exhaust gas evacuation.  
• It features a patented “megaphone piping” structure, which is claimed to produce better torque and throttle response across the powerband by encouraging a swirling exhaust-gas flow effect.  
• Larger piping diameters: For the GR Corolla version, piping is ~70 mm → 60.5 mm for outer, 70 mm → 50.8 mm for centre dual. This compared to stock will likely improve flow and reduce restriction.  
3. Sound tuning & tone
   
• According to the specification sheets, this exhaust aims to deliver “free-flowing characteristics with effective functional sound resonance” rather than being extremely loud or raspy.  
• From user reports: The build quality and sound are praised.
• For a car like the GR Corolla (which you likely appreciate for agility and everyday usability), having an exhaust that improves tone without excessive drone or annoyance is a good match.
4. Weight reduction
   
• One spec sheet for the GR Corolla variant lists weight: ~9.62 kg (21 lbs) compared to OE 14.56 kg (32.1 lbs). That’s a meaningful reduction (-5 kg) which helps unsprung / rear mass and contributes to better agility.  
• Especially for a car where cornering and responsiveness count (which you like), lighter rear/exhaust mass adds marginal gains.
5. Fitment & style
   
• The quad-tip layout (two centre dual tips 93 mm, two outer 123 mm for some variants) gives a distinctive aggressive appearance.  
• The titanium/heat-gradient tips add show-quality finish, which is good for blogging and for a performance build where aesthetics matter.

🔍 Considerations (and what to check)

Since you’re into performance cars and prepping for high-performance builds, you’ll want to keep in mind:

• Compatibility / Fitment: Ensure it’s the exact part number for your chassis/engine. For the GR Corolla, the listing shows 2023+ GR Corolla with G16E-GTS engine.  
• Tuning / Supporting modifications: While the exhaust improves flow, meaningful performance gains often come when combined with proper tuning and other mods (intake, down-pipe, mapping). On a naturally aspirated or turbocharged platform you’ll want to ensure the system isn’t the bottleneck.
• Sound / Drone: Even high-quality systems can still have some drone depending on vehicle/frequency/resonance. The user reports are positive but every car and driving environment differ.
• Legal / Emissions: Depending on Malaysia / local regulations, check whether the system is homologated (JASMA, etc) or whether replacement triggers any inspection issues.
• Cost / Value: This is a premium unit (as your blog audience will appreciate). Ensure budget aligns with performance/quality vs other options.
• Maintenance / Heat: Piping reduction and titanium tips help with temperature but always worthwhile to check heat shielding, exhaust hangers, clearance especially when you lower the car (which you may if you’re building for agility).

APEXI N1 EVOLUTION EXTREME CAT BACK EXHAUSTSYSTEM FOR TOYOTA GR COROLLA 4BA-GZEA14 G16E-GTS 167-T008J