iFOB

iTrader: (16)

Got mine Thursday and installed it today.

Bought both the ISR Y-pipe and single exhaust. Everything was package well and got to me undamaged. Bought it from CZP performance.
Mine also rested on the cross member but after twisting and reinstalling got just enough space so it doesn't touch. Also came with a defective gasket, which is causing a small leak between the Y and test pipe.
Mine doesn't have an issue with hotchkis sway (believe it's V1).

This exhaust is quiet. I had both single and dual Greddy TI-C and also the HKS exhaust and all of them were louder.

Did anyone else notice a nasty sound between 2~4 rpm at full throttle? it's like a buzzing sound. Hope it goes away after break in.

I'll try to get a video clip and some pics up later.

HR>TheRest

Any update on the noise?

eye-5

Does anyone know why it is listed for 2003- 2006 only? What changed in 2007 that wouldn't allow it to fit? Thanks in advance.

terrasmak

iTrader: (8)

It will work just fine, no change

BluestreamDE

Its a nice and affordable exhaust, but don't like the single exit look on the Z. I understand the weight saving and gains topend-wise are there. If I were to go Single, Tomei Expreme would be it, hands down. To each, their own.

eye-5

I drive this quite a bit. I actually prefer the sound of this exhaust over the other singles I have heard. I want it louder than stock so I can hear the blips on heal toes, less weight, and no rasp. So far this fits the bill. It doesn't hurt that it is less expensive but it isn't the reason I'm going with it.

A pro tip from a buddy. Use hose clamps on the hangers so it doesn't rest on the cross brace. Easy peasy.