Sianar Motorsports parts are currently offered in small batches and handled by inquiry. Contact me to confirm fitment, availability, and PayPal invoice ordering before purchase.
Because these parts are developed around real cars, fitment and application details matter. When reaching out, include your chassis, engine, intended use, and any relevant supporting components.
Available Products
SR20DET PCV Breather Fitting
Status: Available by inquiry
Fitment: Nissan SR20DET applications
The Nissan SR20DET engine block vents crankcase pressure through a pressed-in tube located behind the exhaust ports. From there, crankcase ventilation is routed back toward the valve cover, often through the factory air/oil separator or a modified catch can system.
Over time, the factory pressed-in tube can loosen and allow oil residue to leak onto the exhaust side of the engine. I designed this fitting as a clean, secure replacement solution for SR20DET owners who want better control over crankcase ventilation routing.
The Sianar Motorsports PCV breather fitting uses a dual O-ring design to help seal the vent connection and reduce oil leakage. The outlet features a -10 AN male fitting, making it easy to route to the valve cover, an air/oil separator, or a catch can setup depending on the vehicle configuration.
The fitting is built from two CNC-machined 6061 aluminum components that are welded together into a single precision assembly for strength, fitment, and long-term function.
Important installation note: Cylinder head removal is required to install this part.
The cylinder head helps physically retain the fitting once installed, which prevents the breather tube from backing out under pressure.
EVO Front Brembo Conversion Bracket Kit
Status: Available by inquiry
Fitment: Select Nissan chassis
I developed this front brake bracket kit to support EVO Brembo front caliper conversions on select Nissan platforms. The goal is a clean, functional bracket solution for enthusiasts looking to step up braking performance while retaining a proven OEM Brembo caliper package.
The kit is intended for select Nissan chassis, including R32 and R33 Skyline GT-R, Z32 300ZX, S13, S14, and S15 240SX, Silvia, and 180SX applications.
Fitment depends on chassis, hub, rotor, caliper, wheel clearance, and supporting brake components. Contact before ordering to confirm your setup.
Common platform references:
- R32 Skyline GT-R
- R33 Skyline GT-R
- Z32 300ZX
- S13 240SX, Silvia, 180SX
- S14 240SX, Silvia
- S15 Silvia
In Development
IS300 Front Upper Control Arms
I am currently prototyping a front upper control arm design for the first-generation Lexus IS300. The project is focused on geometry, serviceability, and real-world fitment validation.
This product is not available for sale yet. Development updates will be shared as the design moves forward.
Coming Soon
2026 Honda Civic Type R
FL5 Civic Type R Products
The FL5 Civic Type R is the next major Sianar Motorsports development platform. Product ideas are being evaluated around the car as I spend more time with it, learn the platform, and identify opportunities for thoughtful, functional parts.