So I just put on my invida split exaust and it sounds pretty good but I feel like a lost a lot of back pressure and the car seems sluggish at times. I have test pipes I haven't put on yet in fear of losing more pressure. Now the invida exaust doesn't exactly have a muffler it's just a small spot the exaust has a diffrent can but its still open. I was thinking to take the can put and have an actual muffler welded on. Anyone know what is a good muffler for the car ?

 

And how's a back pressure good thing? The whole point of high flow exhaust system is in reducing of the back pressure.

You probably need a good tune, assuming all components are in good working condition.

 

 

Is your 350z 2-stroke?

 

 

I have no idea what you just said?

 

did you get the gemini or the n2... because the gemini does have mufflers