Subject	2.5"......We a back to back dyno back in March 2003
Posted by	Greg D. (Specialty-Z) on October 15, 2010 at 5:14 PM
	This message has been viewed 173 times.
In Reply To	That's regarding your 3" system, right? posted by cherry on October 15, 2010 at 04:10 PM
Message	posted here........ [ http://www.twinturbo.net/net/viewmsg.aspx?forum=technical&msg_id=821946&forum=general&dtSearch=1 ] This was on WXY's car. It had a Stillen 2.5" cat back and we installed our straighter pipe cat back in place of the Stillen for a 13 RWHP and 26 RWT gain. I am comfortable saying the difference between 2.25" and 2.5" (That is a lot of surface area) is worth another minimum of 7 HP.
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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