When u added they cat, did u retune or just left same tune and thats y u lose power? I just added a cat on mine and i lost 10-15 hp but i need to bring the boost back up. Might even have to run another psi or so to get same power
How is silicone effected by temps? Say today, it was 0 degrees here in n.j. And i start my car it warms up amd i do some pulls. Would it still expanded the same? Crack? Pop? Just seems crazy to see that happen.