which flowmaster catback louder n more aggressive?
#1
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hey guys i was wonderin which series of flowmaster exhausts is louder n more aggressive? is it the 40 or 80 series?... i think the american thunder is the loudest of all flowmaster exhausts, right? n i think it is based on the 40 series!!! let me know wat u guys think...
thnks in advance....
thnks in advance....
#3
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really? why not? is there a huge gap between flowmaster n other exhausts concerin hp lose?... i've seen rankin of top 10 or 20 best exhausts for ls1s n flowmaster had a good rankin, one of the top 10.. i remember it was better than borla...
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im pretty sure the 40 series is the loudest/ most aggressive. there are two different 40s, ones supposed to have less enterior resonance. it is true though, although they sound fantastic, chokemasters are not that great for making power. whats the solution? get a cut out and enjoy the best of both worlds.
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Stay away from the 80-series; they flow like crap (search for a thread where someone picked up well over 15rwhp switching to a cutout). You're good to go on the 40s though.
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this might help, i grabbed it off ls1sounds.com these tests were done with a '90 mustang lx.
The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq
Sound Off in Quietest to Loudest (Decibels):
1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).
The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq
Sound Off in Quietest to Loudest (Decibels):
1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).
#17
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Forget the catback and go true-duals/x-pipe/single chamber flows
This is a botched run, but you can hear the exhaust pretty good
http://video.ls1tech.com/video/403c9...4b008bd3b2.htm
![Devil](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_devil.gif)
This is a botched run, but you can hear the exhaust pretty good
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
http://video.ls1tech.com/video/403c9...4b008bd3b2.htm
#18
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Originally Posted by BriancWS6
Forget the catback and go true-duals/x-pipe/single chamber flows
This is a botched run, but you can hear the exhaust pretty good
http://video.ls1tech.com/video/403c9...4b008bd3b2.htm
![Devil](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_devil.gif)
This is a botched run, but you can hear the exhaust pretty good
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
http://video.ls1tech.com/video/403c9...4b008bd3b2.htm
![Werd](https://ls1tech.com/forums/images/smilies2/werd.gif)
Although, at one time, I had the 80 series flowmaster american thunder catback on my car along with the SLP y-pipe and it wasn't much louder than it was when it was stock. I noticed no difference in power at all. However i put this same catback on my uncle's LT1 Z28 (!cats) and it is loud! Almost as loud as my true dual setup suprisingly.
#19
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Originally Posted by 67SS&99SS
![Werd](https://ls1tech.com/forums/images/smilies2/werd.gif)
Although, at one time, I had the 80 series flowmaster american thunder catback on my car along with the SLP y-pipe and it wasn't much louder than it was when it was stock. I noticed no difference in power at all. However i put this same catback on my uncle's LT1 Z28 (!cats) and it is loud! Almost as loud as my true dual setup suprisingly.
![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)