HKS Stainless Dual Resonated Front Pipe (Catless) – Toyota 86/Subaru BRZ/Toyota GR86 2012-2021/2022+

Vehicle: 86Model: ZN6Engine: FA20Model Year: 12/04-Pipe Size: φ60
Straight design without catalyzer = Power Up, because of the low exhaust pressure.(Complied for Step-up tuning.)

FEATURE

The main part for the high output is the exhaust manifold shown on the right graph. We recommend having a total full straight exhaust tuning by having more power by changing the muffler and exhaust manifold and tune the sound with the front pipe.
* If the exhaust manifold headers is changed, the engine check light might be turn on for a certain combination.
So the muffler + front pipe combination is an effective choice.

Straight design and still clear sound
The catalyzer-less straight pipe will have bad noise.
So we have tested for frequency analysis as shown on the right graph, and tuned the sound with 2 resonators.