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...
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.
