B Series 4-1 Narrow Header B16 B18 B20 RMF RF

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304 stainless steel
A/C and P/S compatible
Suitable for all B-Series engines, B16, B18, & B20
Suitable for 1.6l - 2.0l engine displacement
2.5" collector outlet
4-1 merge collector
Includes gaskets and hardware
1 Year Warranty
De pending on the engine setup, slim fans maybe required.
Not factory length, you will need an extension pipe (https://jackspaniaracing.shop/products/3-way-slip-fit-adjustable-telescoping-test-pipe-2-25?keyword=test%20pipe)
2-piece design, combined with the 4-1 collector delivers the best performance.

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