Muffler Delete, the good, the bad, and the ugly

Solus · 09-24-2009, 11:23 AM

Thanks for selling these to me spearfish... I have berk test pipes on my car and wow its loud.. I am going to try to get video of it soon but I know I can be heard from a good distance and everyone loves it...

spearfish25 · 09-24-2009, 05:37 PM

Glad you're enjoying them! I'm bored with my stock exhaust now

Cant get a CBE fast enough

hey32g · 10-13-2009, 06:14 PM

Did you lose any power with this configuration? I know some BMW's actually lose a few bhp when done.

spearfish25 · 10-13-2009, 08:18 PM

It's a tough question to answer really given that I never did a dyno comparison. I think the exhaust is a particularly difficult item to 'butt dyno' as you add a new element to the experience....LOUD sound. My gut feeling is that removing the muffler added power just given the restrictive nature of the stock exhaust. However, it was so much louder that I'm not sure I could separate the sensation of improved acceleration from the overwhelming auditory experience that at certain revs was downright painful.

In comparison, I finalized my exhaust dilemma by purchasing a Stillen catback (which I love). The sound is awesome without being overly intrusive or painful. While the sensation of increased power is subtle, I will say that I find it much easier to chirp the tires on aggressive shifts or flat-out spin them when I jab the accelerator while driving.

spearfish25 · 10-13-2009, 08:19 PM

Solus, where's that video??? Hope you're still enjoying the pipes. I miss that off-throttle 'burble' which is so distinctive on the muffler delete!

Solus · 10-14-2009, 09:51 AM

I haven't gotten around to it lol been too busy playing w/ the supra lately.. I will get it and put it up soon haha my bad... I will get some fly by's on the way to the show this weekend.

Solus · 10-14-2009, 09:55 AM

And there definitely was not a loss of power.. the fastest I have run at the local track here was a 13.5941 before I did it. I just ran on Friday and turned a 13.3509

rednek01 · 10-14-2009, 10:15 AM

Quote:

Originally Posted by hey32g

Did you lose any power with this configuration? I know some BMW's actually lose a few bhp when done.

He didn't lose any power if he did its very very negligible (read 1-3 hp)
Reason being your biggest restrictions are in the Cats which is also why it is not that loud even after deleting the mufflers.

I have deleted the mufflers on my stang and many do they sell axle back kits for the sole purpose of just deleting the mufflers. It isnt until you start cutting Cats off that it gets loud.

Case in point my brothers stang, same car as mine only he went with a Bassani race axle back ( a straight through design with resonated tips) Well when we put on his off road H-pipe (an H-pipe with all the cats removed) his exhaust became unbearably loud and we had to slap my stock mufflers on his car which "muffled" the sound down to a bearable level again.

spearfish25 · 10-14-2009, 10:28 AM

Whoever said the muffler delete is quiet before was flatout wrong (has been posted a few times). It's very loud but just happens to sound good.

rednek01 · 10-14-2009, 10:33 AM

Quote:

Originally Posted by spearfish25

Whoever said the muffler delete is quiet before was flatout wrong (has been posted a few times). It's very loud but just happens to sound good.

I agree it is pretty loud but no cats is much much louder at least in the mustang crowd.

Besides Loud is a relative term what is loud to one may be quiet to another,

Solus · 10-14-2009, 12:44 PM

Well I have test pipes so w/o the muffler and w/ those tips its loud as all hell

NewlyIMPORTed · 10-28-2009, 02:55 PM

i just got the muffler delete today and i have stock cats and it is extremely loud i knew it would be loud but i never knew that it would make that big a difference im still young so i love it for now haha and its sounds so strong

NewlyIMPORTed · 10-28-2009, 10:05 PM

is this of legal sound limit?

spearfish25 · 11-01-2009, 03:57 PM

Quote:

Originally Posted by NewlyIMPORTed

is this of legal sound limit?

Most likely NO when you read the statutes. However, my father-in-law is a cop and he heard the car. Said it sounded great and couldn't imagine I'd have problems. He also mentioned I could just insist that it's how the car normally sounds from the factory...nothing was modified. He's a city cop though, so he may be more forgiving than the small town cops.

zfokaiz · 01-12-2010, 01:13 AM

I just did this today and it is LOUD. once im up to speed cruising at 45 and 60 mph i dont feel like theres much drone at all. anyways im hoping this is just a quick fix till i can afford a full system.

10-14-2009, 12:44 PM	#41 (permalink)
Solus Enthusiast Member Join Date: Apr 2009 Location: Jacksonville, NC Posts: 453 Drives: 2009 Nissan 370z Rep Power: 16	Well I have test pipes so w/o the muffler and w/ those tips its loud as all hell labrador likes this.

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09-24-2009, 11:23 AM	#31 (permalink)
Solus Enthusiast Member Join Date: Apr 2009 Location: Jacksonville, NC Posts: 453 Drives: 2009 Nissan 370z Rep Power: 16	Thanks for selling these to me spearfish... I have berk test pipes on my car and wow its loud.. I am going to try to get video of it soon but I know I can be heard from a good distance and everyone loves it...

09-24-2009, 05:37 PM	#32 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Glad you're enjoying them! I'm bored with my stock exhaust now Cant get a CBE fast enough

10-13-2009, 06:14 PM	#33 (permalink)
hey32g Enthusiast Member Join Date: Feb 2009 Location: Dallas Posts: 278 Drives: ‘14 370Z, Black, 7AT Rep Power: 6726	Did you lose any power with this configuration? I know some BMW's actually lose a few bhp when done.

10-13-2009, 08:18 PM	#34 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	It's a tough question to answer really given that I never did a dyno comparison. I think the exhaust is a particularly difficult item to 'butt dyno' as you add a new element to the experience....LOUD sound. My gut feeling is that removing the muffler added power just given the restrictive nature of the stock exhaust. However, it was so much louder that I'm not sure I could separate the sensation of improved acceleration from the overwhelming auditory experience that at certain revs was downright painful. In comparison, I finalized my exhaust dilemma by purchasing a Stillen catback (which I love). The sound is awesome without being overly intrusive or painful. While the sensation of increased power is subtle, I will say that I find it much easier to chirp the tires on aggressive shifts or flat-out spin them when I jab the accelerator while driving.

10-13-2009, 08:19 PM	#35 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Solus, where's that video??? Hope you're still enjoying the pipes. I miss that off-throttle 'burble' which is so distinctive on the muffler delete!

10-14-2009, 09:51 AM	#36 (permalink)
Solus Enthusiast Member Join Date: Apr 2009 Location: Jacksonville, NC Posts: 453 Drives: 2009 Nissan 370z Rep Power: 16	I haven't gotten around to it lol been too busy playing w/ the supra lately.. I will get it and put it up soon haha my bad... I will get some fly by's on the way to the show this weekend.

10-14-2009, 09:55 AM	#37 (permalink)
Solus Enthusiast Member Join Date: Apr 2009 Location: Jacksonville, NC Posts: 453 Drives: 2009 Nissan 370z Rep Power: 16	And there definitely was not a loss of power.. the fastest I have run at the local track here was a 13.5941 before I did it. I just ran on Friday and turned a 13.3509

10-14-2009, 10:28 AM	#39 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Whoever said the muffler delete is quiet before was flatout wrong (has been posted a few times). It's very loud but just happens to sound good.

10-28-2009, 02:55 PM	#42 (permalink)
NewlyIMPORTed A True Z Fanatic Join Date: May 2009 Location: Kennesaw, GA Posts: 1,109 Drives: 11 STI Sedan Rep Power: 17	i just got the muffler delete today and i have stock cats and it is extremely loud i knew it would be loud but i never knew that it would make that big a difference im still young so i love it for now haha and its sounds so strong

10-28-2009, 10:05 PM	#43 (permalink)
NewlyIMPORTed A True Z Fanatic Join Date: May 2009 Location: Kennesaw, GA Posts: 1,109 Drives: 11 STI Sedan Rep Power: 17	is this of legal sound limit?

01-12-2010, 01:13 AM	#45 (permalink)
zfokaiz Base Member Join Date: Sep 2009 Location: Cape Carteret Posts: 98 Drives: 09 370z 6spd Rep Power: 15	I just did this today and it is LOUD. once im up to speed cruising at 45 and 60 mph i dont feel like theres much drone at all. anyways im hoping this is just a quick fix till i can afford a full system.