Race Cast
Manifolds
A newly improved Mazda rotary IDA manifold line — with plenty of upgrades over the last generation. Sold through our reseller network.
Products
Mazda rotary manifold line
Newly improved — many upgrades over the previous generation. Available across 10A, 12A, 13B and 20B rotary platforms.
Rotary IDA Manifolds
- 12A RX7IDA-12A-RX7
- 13B RX4/5IDA-13B-RX4
- 13B Turbo S4/5IDA-13B-T2
- 13B 6-Port S4/5IDA-13B-6P
Special order: 10A R100, 10A RX3, 13B Series 6, 13B Cosmo, 13B RX8 Renesis, 20B.
Semi-PP IDA Manifolds
- 12A Semi-PPIDA-12A-RX7-SEMI
- 13B Turbo S4/5 — Semi-PPIDA-13B-T2-SEMI
- 13B Turbo S6-8 — Semi-PPIDA-13B-S6-SEMI
- 20B — Semi-PPIDA-20B-SEMI
Cast Sumps & Other Parts
- 12A (first-gen RX7 size)SUMP-12A-RX7
- 12A reverse drilledSUMP-12A-REV
- 13B small (first-gen RX7 size)SUMP-13B-RX7
- 13B small, reverse drilledSUMP-13B-REV
- 13B RX4SUMP-13B-RX4
- Suck-through DCOE adapterDCOE-01
- Rotary water pump adapter (RX4)WPA-RX4
- Rotary water pump adapter (S4/5)WPA-S45
Where to buy
Find a reseller
Race Cast Manifolds are sold through our reseller network. Reach out to confirm current stock for your specific fitment.
Stockholding varies by product and fitment — contact your preferred reseller to confirm availability before ordering.