4" Single or 3" dua exhaust
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TECH Addict
iTrader: (24)
Joined: May 2005
Posts: 2,045
Likes: 4
From: Fort Worth, TX
wow that custom 1 off system looks like the y pipe is choking the crap out of that system. and think of the gas flow in a pipe as exhuast will flow together instead of gasses seperating. my fabricator put it this way. Exhaust gasses dont seperate so if it can flow in the least restrictive direction which would be the largest pipe. all i know is i made more power with 4" instead of my old 3" dumped setup and i moved from a 10 bolt to a 9".
Where are the pics of your system? Also, what mufflers were you running before with your dual system, and what are you running now on your 4"? Lastly, do you have the dyno sheet? What is the motor setup that you made more power with the 4" rather than the 3"? Just trying to get some more information, and a dyno sheet would be sweet.
Part# 98402CM
4 inch Catback Kit for 1998 - 2002 LS1 Camaro / Firebird
Fits 98-02 LS1 V8 cars with Dual type catalyist (or off road Y pipe form long tube headers).
This unit uses a Magnaflow ® straight through 4" race muffler.
Recommended for Turbo cars and cars with other power adders for extreme HP appilcations.
cars with other power adders for extreme HP applications
I love the Mufflex 4" system. I only have a 382, but was going to build a 427 or 440ish motor. Before I bought the system, they had me go to a site with a car running in the 8's with over 900HP with their 4" system. They claim their system will handle over 900HP.
I started with the Kooks 1 7/8"X3" Stainless Race Hedder and 3"ORY-Pipe. Then mated that to the 4" over the axle to the SpinTech muffler which exited to dual 3" pipes out the back, with the chrome tips they had sent. I had a friend fabricate the dual tips as I had the CME on the 02SS. It sounded great and got tons of compliments on the unique design of the exit of the tips. If I went to the bigger motors, I would definately get the 2"X3.5" hedders. I wish I had a sound clip. Cruising the tone was docile and when you nailed it, it sounded awesome. I had a convertible, so with the top down I could enjoy the sweet music, (tone). I will try to get pics as my computer crashed and am now on a laptop and I have temporarily lost all of my pics. I would recommend the BMR upper Panard bar which made much more room for the dual 3" or single 4" tubes over the axle. There were no problems, even with the factory heat sheilds intact.
Good Luck with your choice.
I started with the Kooks 1 7/8"X3" Stainless Race Hedder and 3"ORY-Pipe. Then mated that to the 4" over the axle to the SpinTech muffler which exited to dual 3" pipes out the back, with the chrome tips they had sent. I had a friend fabricate the dual tips as I had the CME on the 02SS. It sounded great and got tons of compliments on the unique design of the exit of the tips. If I went to the bigger motors, I would definately get the 2"X3.5" hedders. I wish I had a sound clip. Cruising the tone was docile and when you nailed it, it sounded awesome. I had a convertible, so with the top down I could enjoy the sweet music, (tone). I will try to get pics as my computer crashed and am now on a laptop and I have temporarily lost all of my pics. I would recommend the BMR upper Panard bar which made much more room for the dual 3" or single 4" tubes over the axle. There were no problems, even with the factory heat sheilds intact.
Good Luck with your choice.
I thought the same thing, definitely need to have a merge collector there to flow better.
Where are the pics of your system? Also, what mufflers were you running before with your dual system, and what are you running now on your 4"? Lastly, do you have the dyno sheet? What is the motor setup that you made more power with the 4" rather than the 3"? Just trying to get some more information, and a dyno sheet would be sweet.
Where are the pics of your system? Also, what mufflers were you running before with your dual system, and what are you running now on your 4"? Lastly, do you have the dyno sheet? What is the motor setup that you made more power with the 4" rather than the 3"? Just trying to get some more information, and a dyno sheet would be sweet.
Let me know if you need any more information. I can bolt the exhaust up if you want pictures on the car.
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Staging Lane
Joined: Mar 2006
Posts: 72
Likes: 0
From: oklahoma
mufflex site here is what i found on mufflex site
This unit is a 4" Catback Kit for The 1998 to 2001 LS1 Camaro & Firebird.
This unit features a Spintech tm Crossflow Style Muffler and Dual 3" Tailpipes along with Round to Oval Stainless Tips.
This unit is a 4" Catback Kit for The 1998 to 2001 LS1 Camaro & Firebird.
This unit features a Spintech tm Crossflow Style Muffler and Dual 3" Tailpipes along with Round to Oval Stainless Tips.
Nice simple & it works. Can't believe how much it looks like mine. 3.5 Collectors into 4 to the back. Tho I have "Flowtech Racereadies" just off the Collectors for manually opening the Headers. I heard too much pro & con on dual electric cutout consistancy which was my original choice off each collector.
I Had the GMMG Bullit for a while, but noise got to me other than WOT.....lol. Now have the largest Corsa rear muffler with 3.5 outlets.
I Got alot of good info here for an overall redo of my rear over axle/muffler setup. Thanks!
I Had the GMMG Bullit for a while, but noise got to me other than WOT.....lol. Now have the largest Corsa rear muffler with 3.5 outlets.
I Got alot of good info here for an overall redo of my rear over axle/muffler setup. Thanks!
Didn't you ask about an exhaust awhile ago, I thought we discussed it before. Anyway, here's a link to my custom Mufflex system. I would recommend a 3.5-4" single exhaust. The sound is so clean with the right muffler and you should definitley pick up the power you're losing with your current setup. I will admit though, it's probably going to bang. The piping is huge, my over the axle pipe hits, I don't care but I'm just being honest.
Stainless piping bigger then 3" is expensive, which is why Mufflex doesn't offer it. Take a look at how much Stainless Works 3.5" catback is, I think it's around $800.
https://ls1tech.com/forums/generatio...aust-pics.html
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
not sure where you guys are at but mufflex will make whatever you want at their shop. last time i was in there they didnt do any of the bending. they had stockpiles of pre bent mandrel tubes which they cut and sectioned for the exhaust.