Berk 3″ High-Flow Catalytic Converter – Nissan 240SX / Skyline GTR
More flow, zero stink. This USA-made 3″ Berk High-Flow Cat moves exhaust 87 % as freely as a straight test pipe—double the OEM converter—while keeping your cabin and the street free of raw-fuel odor.
Why Choose Berk’s HFC?
- Instant horsepower gains – metallic 200-cell core flows 87 % of a test pipe.
- True 3″ through-bore – no neck-downs in tubing or flanges for maximum flow.
- 304 stainless construction – tube, flanges, and welds shrug off rust and track heat.
- Bolt-on convenience – includes multilayer steel gaskets and zinc-plated hardware.
- Street friendly – catalytic efficiency without the rotten-egg smell.
- Made in the USA • EPA-approved*
Vehicle Compatibility
| Nissan Chassis | Years | Engine(s) |
|---|---|---|
| 240SX / 200SX S13 | 1989-1994 | KA24E, KA24DE, SR20DET swap |
| 240SX S14 | 1995-1998 | KA24DE, SR20DET |
| 240SX S15 * | 1999-2002 | SR20DET (JDM downpipe required) |
| Skyline GTR R32 | 1989-1994 | RB26DETT |
| Skyline GTR R33 | 1995-1998 | RB26DETT |
Technical Specifications
| Core Type | Metallic 200 cpsi |
| Tubing O.D. | 3.00 in / 76 mm |
| Material | 304 Stainless Steel |
| Flow vs Test Pipe | 87 % |
| Flow vs OEM Cat | 2× (OEM = 43 %) |
| Weight | ≈ 6 lb / 2.7 kg |
| Compliance | EPA-approved*; off-road only in CA |
What’s in the Box
- Berk 3″ High-Flow Catalytic Converter assembly
- (2) multilayer stainless gaskets
- Complete bolt & nut kit
Installation Notes
Direct bolt-up to stock or aftermarket 3″ exhaust systems using factory hangers. Typical driveway install time: under 30 minutes.
*As of January 1, 2009, high-flow performance cats are intended for off-road use only in the state of California.
FAQ
Will this trigger a CEL?
On OBD-I vehicles (S13), no. OBD-II S14/S15 may require a spacer or ECU tune.
Is it louder than stock?
Expect a slightly deeper tone; overall volume increase is minimal compared to a test pipe.
Can it handle turbo power?
Yes—tested on 600 HP SR20 and RB26 builds without substrate failure.