Circuit Sports CS-TIG0013 Thermal Plenum Intake Spacer S13 SR20DET. These thermal intake plenum spacers has an advantage to reduce heat transfer from head to manifold. Reducing the heat of the manifold, in turn, reduces the heat of air, and ultimately increases horsepower. The plenum spacer has an added bonus of increasing intake manifold volume, and just enough to make a difference. Easy to install and cost-effective.
Images may vary upon engine application!
Vehicle Applications| Year | Make | Model | Trim | App Notes |
| 1989 - 1998 | Nissan | 180SX | (S13) L4 2.0L SR20DET | None |
| 1991 - 1994 | Nissan | Silvia | (S13) L4 2.0L SR20DET | None |
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