Who makes the best?
Fuck high flow cats. Go catless!!
Also are u looking for a specific brand of HFCs? And y?
What are the HFCs for?
Catless is my current situation, but in order to satisfy the noise/emissions nazis …
Where u live? Noise probably isn’t gonna help much. For emissions is it obd2 or visual. Have you actually been questioned by visual or just afraid of being called out? Tune or o2 spacers should fix obd2.
We do 