RS*R Ex-Mag Downpipe System reduces restriction on exhaust gas flow extracting the maximum performance potential out of your car. RS*R invests largely in R&D for the developement of these downpipe in order to yield the best results for these specially selected, turbocharged vehicles. One should see significant horsepower/torque and engine response and turbo spool-up when using these units. Downpipe is a very popular "best bang for the buck" upgrade that makes a night and day difference on turbocharged vehicles. For those who want only the best, there's RS*R.
Vehicle Applications
| Year | Make | Model | Trim | App Notes |
| All | Nissan | 180SX | (S13) L4 2.0L SR20DET | None |
| All | Nissan | 200SX (Non-US) | (S14) L4 2.0L SR20DET | None |
| All | Nissan | 240SX | All | with SR20DET engine |
| All | Nissan | Silvia | (S13) L4 2.0L SR20DET | None |
| All | Nissan | Silvia | (S14) L4 2.0L SR20DET | None |