BIC Divorced downpipe
 

I just purchased a 3" BIC Divorced downpipe. The waist gate blows the exhaust straight out to the air. I'm new with this, so who can tell me about it? Was it worth purchasing? How much power can it add and what benefits will it give my 90 Turbo MK3? And will it change the sound completely? I bought it used and cheap, I know it allows better airflow through the exhaust and the owner said it will sound cool and add a lot of HP. But I want the Supra guys to help me out. I love them but still learning haha

Not really a horsepower adder... quicker spool more than anything, AFAIK. Yes, it will make your car sound different and a little louder. It's not going to sound like running an open DP though, the wastegate doesn't let a ton of exhaust through.