HONDA K-SWAP 4-1 Stainless Steel Exhaust manifold

The HONDA K-SWAP 4-1 Stainless Steel Exhaust Manifold is engineered for high-performance engine swaps, delivering superior flow and durability. Constructed from premium stainless steel, this manifold resists corrosion and heat degradation while maximizing exhaust scavenging efficiency. The 4-into-1 design consolidates exhaust gases for improved power delivery and reduced backpressure. Perfect for K-series engine conversions, it combines aggressive styling with functional performance. Ideal for enthusiasts seeking reliable, long-lasting exhaust solutions that enhance both aesthetics and engine responsiveness.

Work for K20/K24 engine 

Changing the manifold is one of the best modifications you can do to your K-swapped Honda. Just with this alone, gains of between 5-10bhp are achievable before mapping. With supporting mods and mapping, gains of between 7-15bhp and a lot more torque are easily achieved. Constructed from premium 304 grade stainless steel our exhaust manifold features the popular 4-1 design. Being a 4-1 configuration means it gives both good mid range and excellent peak gains. We have done a massive amount of testing with our manifold to make sure it give you the best value for money / power experience.

OUTLET FLANGE DIAMETER - 3 INCH V-BAND

Notes - 

Will not fit Civic EK with ABS unless you move the ABS pump (right hand drive only)

Will work with most K24 engine swap 

This is now our go to exhaust manifold for all our high power K24 engine swaps

* * * All K-swap exhaust manifolds are 'tight' with the subframe / steering rack , depending on which brand of engine mounts you use , there might be modifications required * * *