Subject	Will extending muffler terminating point reduce db level?
Posted by	jschrauwen on June 30, 2008 at 10:19 AM
	This message has been viewed 950 times.
Message	This is in reference to my recent LaBree muffler install. The idle and low rpm city driving level is slightly higher than the previous mufflers. I just did some highway miles yesterday and the db level is higher than my ebay mufflers - go figure. Now I don't know if that's attributed to shorter termination point of the muffler tips. The only way I'd be able to know if extending the mufflers further out to reduce the db level would be to find out from those that have re-done their exhaust systems where the terminating point is further than the previous system. I haven't detected any exhaust fume issues in the cabin. Here's a side view; 1990 JDM RHD - Stage X 491.0 RWHP, 476.1 RWTQ, 18 PSI, Pump gas 26PSI w/Race gas = ???
Follow Ups	Will extending muffler terminating point reduce db level? - jschrauwen 10:19:43 06/30/08 That looks awful. I can't believe you would settle - AZHeat 10:31:19 06/30/08 I don't think I will be settling with it - jschrauwen 11:15:39 06/30/08 I doubt it will make any noticable difference in the sound, - WoodmanZ 12:16:19 06/30/08 looks like ass IMO (n/m) - ztunerz 10:38:47 06/30/08 exactly, it just showed the kinda person he is (n/m) - zyoulater 15:33:08 06/30/08 lol (n/m) - Guapo 10:48:29 06/30/08 Resonators would be a better idea. (n/m) - BradZ (FL) 10:51:16 06/30/08 Just aim it at the inside of the rear bumper - BigTDogg (MA) 10:58:18 06/30/08 While on the noise subject... will cats reduce noise the sam - zboost(NoVA) 11:04:13 06/30/08 yes even more so (n/m) - pearlyellowtt 17:58:42 06/30/08 If you don't have any resonators, put them in - pcproa 11:04:19 06/30/08 Patrick, where did you put your resonators? - jschrauwen 11:18:03 06/30/08 Typically the go in the X-pipe or if you dont have cats - Bernie (NoVA) 11:20:12 06/30/08 2nd - pcproa 11:35:55 06/30/08 Thanks Bernie. I no longer have cats. - jschrauwen 11:38:39 06/30/08 I put my resonators right after my X Pipe - pcproa 11:32:53 06/30/08 After? Don't you mean within the X pipe. (n/m) - jschrauwen 11:40:37 06/30/08 Well, After the X in the midpipes - pcproa 11:43:36 06/30/08 The only resonators I have are 3" ones in the TP. - jschrauwen 11:19:26 06/30/08 IIRC, your exhaust system is 3" to 2.5", right? - pcproa 11:34:05 06/30/08 Correct - jschrauwen 11:42:49 06/30/08 hmmmm - pcproa 11:51:04 06/30/08 Thanks Patrick - jschrauwen 12:15:54 06/30/08 np. My X is shorter and closer with less bends - pcproa 12:30:35 06/30/08 I have 4 resonators on my 2.5" test pipes - Pilot.P (NZ) 20:42:21 06/30/08 damn. (n/m) - ZiNnYc 11:42:41 06/30/08 I seriously doubt the extra 3" will affect sound levels any (n/m) - LJZTT 12:01:01 06/30/08 I was kind of thinking the same but wasn't sure. (n/m) - jschrauwen 12:07:08 06/30/08 on a sidenote, where did you get the mufflers alone and - LJZTT 12:13:58 06/30/08 I got them directly from LaBree Motorsports - jschrauwen 12:22:56 06/30/08 honestly I'm surprised they haven't been duped already - aliaZ 13:30:01 06/30/08 Actually, they're not the same. - jschrauwen 14:50:36 06/30/08 he has B&B listed in his profile - aliaZ 16:27:15 06/30/08 He's since replaced his with a SZ catback I believe. - jschrauwen 17:04:27 06/30/08 Oh the irony (n/m) - BigTDogg (MA) 19:19:39 06/30/08 second - gt300zxtt 19:55:27 06/30/08 B&B won't sell em. (n/m) - AntiHero 14:37:28 06/30/08 didn't know they actually manufactured them (n/m) - LJZTT 15:10:11 06/30/08 yep, B&B is made completely in-house (n/m) - aliaZ 16:28:00 06/30/08 Add a venturi right before each muffler and that will take - doug8867 13:54:56 06/30/08 Doug, that is an outstanding solution - jschrauwen 15:23:14 06/30/08 I just ordered a pair of 2.5" SS Venturi's - jschrauwen 17:07:06 06/30/08 No problem. (n/m) - doug8867 20:37:19 06/30/08 AMS can probably fix that for you. LOL!!! (n/m) - inferno 14:19:45 06/30/08 yea AMS can do anything yo! (n/m) - zyoulater 15:35:05 06/30/08 yea AMS can "copy" anything yo! Fixed =P (n/m) - LiftedCracker 17:43:16 06/30/08 thank you :) (n/m) - zyoulater 18:05:21 06/30/08 No no no... they "replicate" parts, not "copy" them - na300zx (OH) 18:20:37 06/30/08 actually, i had that problem before. Short can be a problem - pearlyellowtt 17:58:00 06/30/08 Thanks for that Adam - jschrauwen 18:39:08 06/30/08 btw, you forgot to post this thread on 3zc yo, lol (n/m) - zyoulater 18:06:25 06/30/08 why would you want it quieter? (n/m) - Spee 20:04:48 06/30/08 the welds on the those tips look like dog do wtf? - Antonio(AZ->NYC) 21:50:03 06/30/08 I think they're fine - jschrauwen 05:12:02 07/01/08
Post a Followup	You cannot reply to this message because you are not logged in.