Subject	That's regarding your 3" system, right?
Posted by	cherry on October 15, 2010 at 4:10 PM
	This message has been viewed 162 times.
In Reply To	A stock turbo car is at least 20HP at the wheels less posted by Greg D. (Specialty-Z) on October 15, 2010 at 02:46 PM
Message	At the turn of the millennium, I was considering a full 3" system (see http://twinturbo.net/nissan/300zx/forums/general/view/418877/Three-inch-stainless-exhausts-compared-----gtgtgt.html). But the consensus view then was that 3" pipes were "overkill" for anything less than 600 hp, and too loud besides. The horsepower differences between aftermarket exhaust systems (including HKS, Greddy, B&B, Stillen, Thermal, Brullen, Apexi, and Borla -- size difference notwithstanding) was said to be minimal, with the gains over stock exhaust attributed primarily to mandrel bending. It was a contentious issue, and got lots of back and forth, including "Greg says..." attributions both ways. In any case, I don't recall ever seeing the dyno charts that conclusively and quantifiably lay the issue to rest. Does Specialty Z have dyno charts for that?
Follow Ups	Exhausts - I dont get it.... - Becker 00:55:10 10/15/10 Discontinued JWT Genie is your best bet, I guess. (n/m) - SimaYi 02:11:50 10/15/10 Agreed, but they are getting rare, so the prices are - zellamay 02:19:06 10/15/10 I got mine for $500. - rojoloco (San Diego) 07:54:05 10/15/10 I love my JWT exhaust its quiet yet semi aggressive on the - 5280Z_nightstalker 02:30:06 10/15/10 I hate my neighbors... They call the city on me for having - JonnyZ(SoCal) 02:14:17 10/15/10 The Genie is nice, like mine, but he doesn't like the oval (n/m) - CoHPhasor 03:46:37 10/15/10 Ever considered a Borla? Quiet til you get you are on it! - SilverZXTT(CO) 06:54:51 10/15/10 I agree... - Bigwill837 07:43:03 10/15/10 loved my Borla. (n/m) - chicagozer 08:41:29 10/15/10 I've had my Borlas on since ~1994 - Fly-Surf 11:15:21 10/15/10 3rd. I'm very happy with the sound of my car. - cherry 08:30:25 10/15/10 A stock turbo car is at least 20HP at the wheels less - Greg D. (Specialty-Z) 14:46:12 10/15/10 Larger turbos, the difference is even greater (n/m) - Greg D. (Specialty-Z) 14:47:10 10/15/10 That's regarding your 3" system, right? - cherry 16:10:04 10/15/10 2.5"......We a back to back dyno back in March 2003 - Greg D. (Specialty-Z) 17:14:09 10/15/10 I'm trying not to be too incredulous, but.... - evan_aggie 15:40:37 10/15/10 I think you meant to address this to Greg. (?) - cherry 17:00:35 10/15/10 yes sir...... - Greg D. (Specialty-Z) 17:18:36 10/15/10 Borla.... (n/m) - modnar 11:02:34 10/15/10 Borla is 2.25" and is why it is quieter.....It has even - Greg D. (Specialty-Z) 14:45:03 10/15/10 2.5-inch from back in the day (I've measured it)! (n/m) - SilverZXTT(CO) 16:42:01 10/15/10 No Sir............ - Greg D. (Specialty-Z) 17:23:52 10/15/10 Quick Google search shows everyone selling it as 2.25" - Greg D. (Specialty-Z) 17:56:39 10/15/10 Hah, I thought 2.5" too, until I googled the specs... - evan_aggie 19:40:41 10/15/10 We can make ours in 2.25" too and it will be MUCH quieter - Greg D. (Specialty-Z) 19:45:01 10/15/10 My Stillen exhaust used to set off car alarms - dogpile 09:25:23 10/15/10 it isnt about the size of the muffler, it's about the - LJZTT 09:37:53 10/15/10 truth - KasbeKZ(VA) 09:45:55 10/15/10 I Dis-agree................... - Greg D. (Specialty-Z) 19:42:44 10/15/10 so what is the difference between the Genies and you guys' - LJZTT 18:51:36 10/16/10 hks is not loud on a tt, borla isn't bad either (n/m) - ztunerz 10:16:18 10/15/10 Most of the quiet options have been discontinued. HKS Turbo, - bbug 10:20:10 10/15/10 its a sports car. its meant to be loud. - ZiNnYc 10:41:15 10/15/10 how do you pass emissions with tp's? - vulcanrush 10:53:15 10/15/10 Typically. (n/m) - SeedyROM 11:23:26 10/15/10 My Z hasnt seen an inspection station for 2 years ;) - ZiNnYc 12:03:58 10/15/10 I totally agree. It does not seem that it would be too - Mr.Stacy 11:05:06 10/15/10 My litle opinion is. Borla pfftt. - John@Z1 11:23:46 10/15/10 It would be nice, better yet perfect if someone would - Mr.Stacy 11:38:46 10/15/10 ;) (n/m) - John@Z1 11:49:50 10/15/10 Exactly!!!! (n/m) - Becker 12:03:26 10/15/10 agree - aliaZ 21:20:21 10/15/10 Never heard a rasp on my aluminized SZ 2.5" dual tip - Piranha 15:28:54 10/15/10 Labree uses a spiral louver core that adds rasp, we use - Greg D. (Specialty-Z) 17:26:34 10/15/10 A local guy has yours I will have to check it out. (n/m) - John@Z1 18:47:52 10/15/10 My b&b is super quiet. (n/m) - z-u-later 11:28:51 10/15/10 FYI, the reason why SZ uses Sebring mufflers is because the - MixManMash 11:31:51 10/15/10 SZ with megan x-pipes? - sirach38 16:18:13 10/15/10 I know quite a few people with the single tip SZ exhaust - Piranha 13:56:58 10/15/10 2nd. Even my genies are a bit load without cats. (n/m) - Wright (Ca) 14:02:47 10/15/10 hm, having ridden in an HKS hiper equipped TT and an NA - LJZTT 19:07:08 10/16/10 Our single tip is actually a pretty good seller in 3 inch - Greg D. (Specialty-Z) 15:14:54 10/15/10 Thanks Greg - that is excellent info about the internal - Becker 15:33:06 10/15/10 I am still rocking the "old school" Stillen catbacks on both - ConVerTT 15:16:25 10/15/10 A couple of pics of Single Oval on different cars.... - Greg D. (Specialty-Z) 15:19:05 10/15/10 Seb has single Oval on his car too...... - Greg D. (Specialty-Z) 15:35:31 10/15/10 Found one more on a 2+2 - Greg D. (Specialty-Z) 15:37:59 10/15/10 Another Single Oval - Rob260 16:12:14 10/15/10 Heres my take on exhausts. - pieboy100 17:42:27 10/16/10
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