My thoughts on TopSpeed Pro Exhaust w/ silencers removed: (In comparison to the Fast Intentions Catback w/ stock headers & cats i had before.)

I get much less interior drone (virtually none). No annoying deceleration hiss sound that comes with the FI X-pipe. (which gets exponentially worse with test pipes, longtube headers, or HFCs) I like the sound better over all, it is quiet under normal driving, but gets loud when you punch it, especially at higher RPMs.

im my garage with me standing about 10ft away from the tailpipes and having a friend rev it, its about as loud as the FI exhaust, maybe slightly louder.

I'll be attempting to get my COBB cats to fit with these, and if they don't ill do some e-bay test pipes. Gonna get car inspection done first.

Its a 'bang for buck epidemic'

What do u guys think about this guys ?? 370Z G37 JDM Exhaust Down Test Down Y-pipe Center pipe - eBay (item 190450354155 end time Feb-25-11 18:06:36 PST)
I'm just wondering if it's the same Y pipe...

These two fit fine so why don’t you buy these:

Nissan 370Z Z34 G37 VQ37 08-10 Exhaust Test Pipe Pipes - eBay (item 230581013573 end time Feb-11-11 15:57:43 PST)

150 shipped for test pipes

Nissan 370Z Z34 09 10 11 G37 08+ Exhaust Y-Pipe Y Pipe - eBay (item 330508965114 end time Feb-13-11 18:09:04 PST)

80 shipped for Y pipe

TOTAL: 230 with shipping....cheaper than your link and many of us run the same exact ones with no issues.

You can get TPs for 80 shipped...same guy that sells the Y pipe in this thread.
370Z Z34 G37 VQ37 08 09 10 11 Exhaust Test Pipes Cat DL - eBay (item 330508965108 end time Feb-13-11 18:09:03 PST)

Thanks for the link to the Ebay Y-pipe, bought one should be here next week !:tup:

Good looking out. Has anyone tried the Y with TPs and the TopSpeed together? I know with HFCs it is supposed to be ok. I do not want excessive drone and rasp. I have read that with stock cats it sounds great which is why I have not bought test pipes. Can anyone shed any light on this?

My Topspeed CBE will be here tom so will be running with the Y pipe, I am getting a set of the ebay TP's listed above just for a trial and review so we will see, that will be a couple of weeks off mind, gonna do a full review on the TS CBE with dynos etc first.

^^ good man Kast!

Kast let me know how it sounds or post up a vid. Chicago weather is getting better and the insurance is back on my Z. I will be doing the exhaust w/ Y pipe and stock cats this week. I am expecting it to sound amazing.

FWIW, I wrote to the Y-pipe guy on eBay asking him about an exhaust setup for the 370 as he has one for the 350s that looks very nice at a great price.

He wrote back and said that they are working on it but not to expect it to be in production until the summer. For those of you who don't mind waiting and want to save several hundred dollars or more (the 350 sets were under $750 and looked to be true dual exhausts from the pics) this might be an option. I think it is what I will do unless I go local/custom (I just think $1500 for an exhaust is such a rip off...we are talking a little bit of metal here folks...not gold bullion).

^^^I feel ya on the $1500 exhaust.

Guys - next person that picks this up, can you weigh it? ;-)

I just ordered the test pipes and y pipe. I will weigh mine when they arrive.

thx man, saves me pulling mine just to scale it