Are you good in a garage? It took me 2.5 hours the first time.. now i can do it in about an hour.. There are 4 bolts that are very difficult to remove (upper bolts near engine)I'm also thinking about getting Helix test pipes for my 05 350z.
Is it hard to install myself?
Yes. I have stock exhaust with test pipes.And can I install it with my stock exhaust?
Yes. If you go with straight pipes, your exhaust will be louder and there will be a strong raspy noise around 3500 RPM. You can go with resonated test pipes and 90% chance will eliminated the raspy noise. I found that different combinations of exhaust react different to test pipes.Will my stock exhaust be louder?