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SKU: IS-S2GTNR-S13
ISR Performance Series II GT Single Exhaust Non-Resonated 89-94 Nissan 240SX S13
The ISR Performance IS-S2GTNR-S13 Series II GT Single Exhaust is the best non-resonated cat-back upgrade for 1989-1994 Nissan 240SX (S13) owners seeking aggressive sound, improved flow, and lightweight performance. This single-exit system features mandrel-bent stainless tubing, high-flow muffler, and clean rear tip for noticeable power gains, quicker turbo spool (if boosted), and deep tone without excessive drone.
Key Features
- Non-Resonated Design: Removes resonator for raw, aggressive exhaust note and maximum flow
- GT Single Exit: Clean single rear exit with polished or black tip for sporty appearance
- Mandrel-Bent Tubing: Smooth bends reduce backpressure for improved horsepower and torque
- Lightweight Stainless: T-304 stainless construction for durability and corrosion resistance
Specifications
| Specification | Detail |
|---|---|
| Part Number | IS-S2GTNR-S13 |
| System Type | Cat-Back Non-Resonated |
| Pipe Diameter | 3 inch (or 2.5-3" stepped) |
| Material | T-304 Stainless Steel |
| Tip Style | Single Polished or Black |
| Exit | Single Rear |
| Country of Origin | United States |
| Warranty | Limited |
Product Notes
- Non-resonated for maximum volume and flow – resonator delete for track/street aggressive sound
- Compatible with stock or aftermarket headers/cats – professional install recommended
Installation Notes
- Estimated time: 2-4 hours, moderate difficulty, lift or jack stands required
- Bolt-on system – uses factory hangers, may require minor adjustment for perfect fit
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 1989-1994 | Nissan | 240SX | Coupe & Hatchback |
| 1989-1994 | Nissan | Silvia S13 | Non-US Models |
Why Choose ISR Performance?
- Specialist in JDM and import performance exhaust systems with proven fitment
- High-flow mandrel-bent stainless for power gains and aggressive sound
- Trusted by 240SX and S-chassis enthusiasts for quality and value
Frequently Asked Questions
-
Q: How loud is it?
A: Aggressive and deep tone – non-resonated for track/street volume, minimal drone. -
Q: Does it fit stock cats?
A: Yes, bolts to factory catalytic converter or aftermarket headers. -
Q: Is it 3-inch full?
A: Yes, mandrel-bent 3" piping for maximum flow on 240SX. -
Q: Will it trigger check engine light?
A: No, cat-back only – no emissions impact with stock cats.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock, ships same or next business day
- Packaging: Official ISR retail box
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