Yonaka 4-1 ITR Header (Type II)
Yonaka Motorsports headers for all B-Series motors featuring 1 5/8" pipes with 2.5" collector flange. This is an aftermarket header, designed from the JDM 1998+ Integra Type R B18C engine. With the larger pipes and the larger 2.5" collector, it will immediately add horsepower. Totally redesigned to improve fitness and flow.
Note: This header will not bolt up to your stock exhaust with it's 2.5" collector.
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