Christian370Z's Progression Thread

[christian370z]

Originally Posted by Jamaica@UAMotorsports

I had this exhaust on for the movie. Your gonna love it. Great exhaust. A lot of low wend torque

Ha, Nate mentioned you had it first. Why didn't you end up keeping it? Would you say it sounds similar to a F.I. exhaust in terms of deepness?

[christian370z]

Thanks for the kind comments guys! I am so excited to install this it is not even funny, sayonara to this wimpy stock CBE!

[christian370z]

The exhaust is now installed! It sounds super exotic, deep and refined but my god does it have some monster drone between 2-3krpm. I was shocked. I will be getting some sound deadening this week and doing the rear hatch area to see if it is better because I really like the sound otherwise!

Question: will some good sound deadening in the hatch get rid of a decent amount of this drone?
Before:





After with new exhaust:

[Jamaica]

lovin the tips bud.

[tsolin01]

Sound deadening doesn't really do much for the drone since the frequencies are so low. It might even make it more noticeable since you won't hear the road noise as much.

[Jamaica]

Originally Posted by christian370z

Ha, Nate mentioned you had it first. Why didn't you end up keeping it? Would you say it sounds similar to a F.I. exhaust in terms of deepness?

I honestly like F.I. better had better mid range. I like something different. Look at me now I dont even have F.I. exhaust anymore.

[docaam]

Looks good, but I have tried to get rid of the drone in my FI, and was not able to do anything even did the sound proofing for the whole car.

Does it vibrates/rattles or just the sound?

[Trips]

Looks good Chris
Btw how's the distance from the lowest part of the can to the floor?

[Jamaica]

Originally Posted by Triple's

Looks good Chris
Btw how's the distance from the lowest part of the can to the floor?

There is alot more clearance then F.I. I mean a lot.

[christian370z]

Originally Posted by Jamaica@UAMotorsports

I honestly like F.I. better had better mid range. I like something different. Look at me now I dont even have F.I. exhaust anymore.

I understand completely, the unique one off factor is something that I was really attracted to but I really need to figure out this drone haha. It sounds so sexy though, everyone was looking into my car driving down PCH and they would snap their heads if I rev matched down shifts haha.

Originally Posted by docaam

Looks good, but I have tried to get rid of the drone in my FI, and was not able to do anything even did the sound proofing for the whole car.

Does it vibrates/rattles or just the sound?

Around 2,000rpm, it really shakes the car. The side view and rear view mirrors look like I am pounding a big sub in the trunk. Between 2-3krpm, the drone is bearable around town but is way too much for highway driving and I am not exactly the most sensitive person to loud exhausts either.

I will post a picture of what I plan to do using Helmholtz or side branch resonators.

[christian370z]

Originally Posted by Triple's

Looks good Chris
Btw how's the distance from the lowest part of the can to the floor?

Thanks Genaro! There is the same clearance as stock, there is definitely tons of room and I don't expect to scrape at all.

[christian370z]

If you have a subwoofer or a set of good headphones, you will definitely hear the drone at startup.

[christian370z]

This is what will be done to address the drone: two side branch resonators 29"s long to tune out some drone in the 2-3krpm range. They will go up into the recess where the stock muffler was and will be out of site when viewed from the rear.

[hdskull]

Looks nice! Doesn't look like you put the spacers on?

[christian370z]

Honestly, I haven't bought two more for the front and at the moment, I don't want to spend anymore on the Z until I have this exhaust sorted lol. I need to sell my Tanabe Y pipe first, then I will be able to pay for the front spacers.