Today I had a straight pipe put on the G with the stock muffler, but now it's a little more than I expected. Everyone has asked if my car is turbo or supercharged. I need ideas for exhuast that sounds good but is not to loud. Any ideas?

 

Coupe mid-pipe.

 

I'm waiting for the the Megan exhaust to get back in stock for my X. Check it out.

 

What years in a coupe mid pipe will work? Will it bolt right up or does it have to be extended a little?

 

How good is the quality of Megan exhaust?

 

Bolt up.

I think 03-07 I can't remember when coupes change models

 

Depends what you are trying to achieve...

Yesterday I had a 22" MagnaPack muffler (Magnaflow Part # 10436) welded in place of the stock '04 G Sedan's resonator. Done at Japtrix.

It is louder than stock but softer and deeper than the coupe. Another member of this forum described it as a "gentleman's exhaust". At times, for a second, I hear a "whistle/whine" when letting off the gass after a sharp/brief rev. Occasionally there is VERY QUIET "pop"...maybe it's breaking in...but I hope it does NOT go away =D. It's a "luxury" car with very acceptable tone.

As follows:
Acceleration -- burble
WOT -- aggressive burble, progressively louder (smoothly), puts smile on my face
Below ~1600 RPM @ cruising -- A little exhaust humm. DOES NOT hamper conversation and you won't hear it much with soft music on.
Above ~1600 RPM @ cruising -- I changed my exhaust? When did this happen? What's drone? =) I don't hear anything...a baby can fall asleep in the backseat.

Currently, I only have K&N drop-in, Z-tube, 5/16 MD Copper Iso, and SxExCx's grounding kit. Welding this in is only a "tie-over" for me until I am ready to revamp the exhaust system entirely.

Hope this helps.

Regards,
Rajen

 

Thanks! I think I figured out why my exhuast is so loud. The owner before me took out the OEM cats and put gutted cats in. Tomorrow I'm going to get OEM cats put back on my car for now. I have been told by Infiniti & by the shop that OEM cats will tone down my sound a lot. But is that really true?

 

It will make a big difference in sound with oem cats.

 

Thanks for the information. I'm looking for the stock sound but a little louder. I hope when the OEM cats are back on tomorrow it tones it down just like i would want it.

 

Thanks! I wanted to make sure that it would before i did it. Right now I have to much in cabin noise and needs to be toned down.

 

It will tone down, but with the straight pipe welded in it will most likely have a lot of drone. Read this thread: "droning after removing pre-muffler......". Type this into google for more information: "site:g35driver.com sedan glasspack". It was said 14"-18" produced a bit too much drone, hence my decsion amongst many others to go with the 22".

If you do decide to go this route there are aluminized and stainless steel resonators/mufflers/glasspacks. You will pay a bit more for SS, but it should be worth it...generally speaking.

GL,
Rajen

 

HKS sport exhuast, its bolt on, and sounds amazing, not to loud not to quiet.

 

I have heard some HKS exhuast but not to many. Is there any site with a good sound clip with it on a G? I'm looking into lookig into Stillen generation 2 cat-back exhaust system, but HKS would be a good one to look into.

 

What I plan on doing is putting the OEM cats on in the morning and drive it around the shop. If it does have a lot of droning in the cabin still I'm going to have the stock piece go back in and do more research on Stillen & HKS and any other good option out there. I don't really want to have to put it back on but I can't take the in cabin noise. I agree with the thread you sent me it has to be something with the sedans being longer that we end up with so much droning.