Description
The 4 (28φ)-1 (40φ) structure realizes remarkable torque and power up from low rpm to high rpm.
This product is a completely handmade product by a skilled craftsman who uses light weight SUS304 with t = 1.2 mm to 1.5 mm and manually welds and corrects steps on each part.
It is possible to maximize the engine performance of the L15A.
We promise to increase torque and power.
A special EX manifold that fits well on any stage.
● New gasket included.
● With a service hole for air-fuel meter sensor installation.
● Compatible with both GD3/4 1.5 fit and FF/4WD.
*Welding may be damaged by engine vibration due to deterioration of the engine mount over time.
Repairs are available at actual cost. Please feel free to contact us.
*Only the head gasket is included
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