HKS Exhaust Manifold - Equal Length Header - No Cat - GT86 & BRZHKS Stainless Equal Length Exhaust Manifold for GT86 & BRZ No Cat 60mm pipe diameter The HKS 4 2 1 manifold is equal length and produces more power from 3,000rpm onwards. Fensport Tip: Ecu will require tuning, we recommend our GT86 & BRZ NA Remap for maximum power gains. Note: No catalytic converter, this product is for off road use only.
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