Superior heat resistance ensures durability under high-performance conditions
Reduces heat transfer from cylinder head to intake manifold for cooler air
Maximizes horsepower and torque by enabling denser air intake
Precision fitment for BN and most aftermarket B58 and S58 manifolds
Includes extended length hardware for versatile installation
Summarized by Shop
BN B58 Gen1 & Gen2 and S58 Phenolic Thermal Spacer
Enhance the performance of your BMW or Toyota Supra B58 and S58 engine with the BN Phenolic Thermal Spacer. This high-quality spacer is meticulously engineered to reduce heat transfer from the cylinder head to your intake manifold, resulting in cooler intake air temperatures and opt
Material
Phenolic
Compatibility
BN B58 Gen1, Gen2, S58; most aftermarket intake manifolds
Color
Green
Item Condition
New
Brand
BimmerNetwork
Summarized by Shop
4.3
7 ratings
5
4
3
2
1
Everything came perfect! Love the intake manifold and cant wait to test out the difference
Pete · December 30, 2025
Once I got it in place, everything was good. But there should be something to hold in place when installing it, Other than that, I like it.