New exhaust making a funny noise!

[sjordanGTI]

Hi guys!

I recently bought a new exhaust system, but it makes a weird vibrating noise at 3500+ revs. I'm pretty sure it's not vibrating against anything. I'm just wondering if anyone here bought a highflow exhaust and has the same issue, or it's a dodgy exhaust.

He only put a high flow cat, front muffler and pipes. I'm thinking it may be pressure at the cat, due to the stock back box. But before I spend $380 on a new back box or send it back, I'd like some advice. It has 2 years warranty, I've only gone about <50km with it on.

I'll post a video of it later tonight.

Thanks.

[Water Boy]

It might be the heat sheild vibrating. Just take it back and have a chat with the shop. Im sure they will be happy to help!

[sjordanGTI]

I'll take it back on the weekend, I hope that's all it is! It sounded beautiful and then BUZZZZ!