Honest opinions on Hahn Catback LSJ
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Honest opinions on Hahn Catback LSJ
Ok a little background... I have spent a ton of bux on trying to get the exhaust to sound decent.
I have had
Stock catback/catless/Cobalt addition header-cracked in half ...no good
ZZP Midlength1.75 w 3" DP catted and catless/custom 2.5" exhaust with magnaflow mufflers...sounded decent but lots of exhaust leaks with the ZZP and became very buzzy after time...damn glaspacks dont last when you can pop flames!
I bought a custom header from Clear Image Automotive with 2 downpipes that i could switch from catted to catless when needed, they even hooked it up with VBand clamps like turbos usually run
I had 3" cat back with even longer and fatter magnaflow mufflers, but still buzzed like hell, and again became hollow over time.
Current setup
I like my CIA header and DP but on a whim and trying to stop the buzz i put a Flowmaster Delta flow 60 series, even went back to have them put an additional glasspack but its still loud and buzzy
How is the Hahn 3" Catback?
I want it nice and smooth, a little quieter than what it is now, can anyone give me advice?
Opinions..?
I have had
Stock catback/catless/Cobalt addition header-cracked in half ...no good
ZZP Midlength1.75 w 3" DP catted and catless/custom 2.5" exhaust with magnaflow mufflers...sounded decent but lots of exhaust leaks with the ZZP and became very buzzy after time...damn glaspacks dont last when you can pop flames!
I bought a custom header from Clear Image Automotive with 2 downpipes that i could switch from catted to catless when needed, they even hooked it up with VBand clamps like turbos usually run
I had 3" cat back with even longer and fatter magnaflow mufflers, but still buzzed like hell, and again became hollow over time.
Current setup
I like my CIA header and DP but on a whim and trying to stop the buzz i put a Flowmaster Delta flow 60 series, even went back to have them put an additional glasspack but its still loud and buzzy
How is the Hahn 3" Catback?
I want it nice and smooth, a little quieter than what it is now, can anyone give me advice?
Opinions..?
the hahn is a nice low tone, but alot of TC guys bought it, the sold it cuz its so quiet.
try a magnaflow race muffler. thats what i have. idk how it would sound on a SC though
all 3 inch
try a magnaflow race muffler. thats what i have. idk how it would sound on a SC though
all 3 inch
Last edited by 09turbo; Sep 18, 2009 at 06:03 PM. Reason: Automerged Doublepost
I have the JBP header, hahn downpipe w/ cat and the 3" cat back.
I love it!!! The fiance didnt even notice it when we were driving around, just slightly louder than stock when your easy on the throttle. When you get on it though, there is no mistaking you have full 3" exhaust as it really opens up. It is a subtle yet throaty sound everywhere other than WOT. I highly recomend it.
I love it!!! The fiance didnt even notice it when we were driving around, just slightly louder than stock when your easy on the throttle. When you get on it though, there is no mistaking you have full 3" exhaust as it really opens up. It is a subtle yet throaty sound everywhere other than WOT. I highly recomend it.
i have the hahn on my lsj. i have zzp 1/34 to zzp 3" catless dp. the exhaust sounds great most of the time. around 4000rpm when im just cruising in part throttle it starts to get pretty raspy. but then again i usually shift before 4k anyways.
i get alot of compliments on the sound of the car..so i would say go for it.
i get alot of compliments on the sound of the car..so i would say go for it.
http://www.youtube.com/watch?v=wnTSeKp8ElY
heres a quick clip of me at the track with the hahn catback.
heres a quick clip of me at the track with the hahn catback.
A-MA-ZING.
have the hahn header, downpipe, and catback. soooo nice and deep and idle and normal driving. but really opens up when at WOT, but its so clean and not loud raspy sounding at all. i have a few clips i'll post up.
VVV all out
http://www.youtube.com/watch?v=EYJWlrCYMl4
VVV 3rd gear slightly up hill
http://www.youtube.com/watch?v=jNDEB7f1aPY
VVV track run+clutch slip

why is yours so raspy?
have the hahn header, downpipe, and catback. soooo nice and deep and idle and normal driving. but really opens up when at WOT, but its so clean and not loud raspy sounding at all. i have a few clips i'll post up.
VVV all out
http://www.youtube.com/watch?v=EYJWlrCYMl4
VVV 3rd gear slightly up hill
http://www.youtube.com/watch?v=jNDEB7f1aPY
VVV track run+clutch slip

http://www.youtube.com/watch?v=wnTSeKp8ElY
heres a quick clip of me at the track with the hahn catback.
heres a quick clip of me at the track with the hahn catback.
Last edited by EXsoccer1921; Sep 18, 2009 at 07:05 PM. Reason: Automerged Doublepost
It's ******* amazing.... I love it.
Sure it's quiet... but the rumble it makes plus with me having a baby to sit in the back seat it's the perfect exhaust for us "older" guys who don't want to sound like a flying fart!
Sure it's quiet... but the rumble it makes plus with me having a baby to sit in the back seat it's the perfect exhaust for us "older" guys who don't want to sound like a flying fart!
Ok a little background... I have spent a ton of bux on trying to get the exhaust to sound decent.
I have had
Stock catback/catless/Cobalt addition header-cracked in half ...no good
ZZP Midlength1.75 w 3" DP catted and catless/custom 2.5" exhaust with magnaflow mufflers...sounded decent but lots of exhaust leaks with the ZZP and became very buzzy after time...damn glaspacks dont last when you can pop flames!
I bought a custom header from Clear Image Automotive with 2 downpipes that i could switch from catted to catless when needed, they even hooked it up with VBand clamps like turbos usually run
I had 3" cat back with even longer and fatter magnaflow mufflers, but still buzzed like hell, and again became hollow over time.
Current setup
I like my CIA header and DP but on a whim and trying to stop the buzz i put a Flowmaster Delta flow 60 series, even went back to have them put an additional glasspack but its still loud and buzzy
How is the Hahn 3" Catback?
I want it nice and smooth, a little quieter than what it is now, can anyone give me advice?
Opinions..?
I have had
Stock catback/catless/Cobalt addition header-cracked in half ...no good
ZZP Midlength1.75 w 3" DP catted and catless/custom 2.5" exhaust with magnaflow mufflers...sounded decent but lots of exhaust leaks with the ZZP and became very buzzy after time...damn glaspacks dont last when you can pop flames!
I bought a custom header from Clear Image Automotive with 2 downpipes that i could switch from catted to catless when needed, they even hooked it up with VBand clamps like turbos usually run
I had 3" cat back with even longer and fatter magnaflow mufflers, but still buzzed like hell, and again became hollow over time.
Current setup
I like my CIA header and DP but on a whim and trying to stop the buzz i put a Flowmaster Delta flow 60 series, even went back to have them put an additional glasspack but its still loud and buzzy
How is the Hahn 3" Catback?
I want it nice and smooth, a little quieter than what it is now, can anyone give me advice?
Opinions..?
idk. i think its because im catless but dont know. my old corsa was even worse. i have noticed that its pretty close to the heat sheild for the gas tank and the rear axle or what ever you want to call it.. lol. so mabye its vibrations but i can shake it pretty hard by hand and it doesnt hit so im thinking its not that.
any ideas?
any ideas?
probably cause you're catless. if it were hitting up against the rear cross member it would be making a different noise. mine did that when i had it on there for a rough fit before i adjusted the length
heres some more. don't mind the times they were having problems with the clocks that night.
....or the commentary.


heres some more. don't mind the times they were having problems with the clocks that night.
....or the commentary.


Last edited by EXsoccer1921; Sep 18, 2009 at 10:54 PM. Reason: Automerged Doublepost
Thread Starter
South Central *********
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From: Texas
i have both a catted down pipe and catless
I was gonna swap the catted one back on with the new flowmaster setup to see how it sounds,
its to the point know where taking off from a light is embarrassing
thanks for all the clips and vids!@ your input is pretty helpful
whats the Hahn cost?
I was gonna swap the catted one back on with the new flowmaster setup to see how it sounds,
its to the point know where taking off from a light is embarrassing
thanks for all the clips and vids!@ your input is pretty helpful
whats the Hahn cost?
Thread Starter
South Central *********
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From: Texas
cruising is fine, and low rpms under load sound fine
anything 3.5-7K is garbage
The cat on my clear image pipe is very small, maybe 6-8 inches, so i cant image a huge decrease in raspyness by putting back on.
anything 3.5-7K is garbage
The cat on my clear image pipe is very small, maybe 6-8 inches, so i cant image a huge decrease in raspyness by putting back on.
Thread Starter
South Central *********
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From: Texas
have not tried hahn tried most of the combos listed also have a dynomax muffler lots of money better but not good enuff....gonna try a sweetthunder muffler as a resonator 30 inches long google sweethunder mufflers for more
I love my Hahn 3". It's mellow at cruising rpm's with no drone whatsoever, but it get's nice and loud when you put the hammer down. I had the GMPP sport for a while and it just didn't cut it. It had an annoying drone a cruising rpm's, the resinator(sp?) scraped on speed bumps, and it felt restrictive up high. The Hahn 3" has no such issues. Heads WILL turn when you have this exhaust!
those look pretty cool. let us know how you like it.
Thread Starter
South Central *********
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From: Texas
Well i ordered the Hahn exhaust today after NGA offered me a great price on it.!
I went home and put my catted DP on just to compare this current setup, and it is dramatically better.
I will probably end up running a cat after i get my tune worked out on the fuel but in the mean time, hopefully the Hahn exhaust will not disappoint when it gets thrown on.
also off topic- i ordered a 2.7 to replace my 2.8 and went ahead and ordered a new intercooler pump as well.
I went home and put my catted DP on just to compare this current setup, and it is dramatically better.
I will probably end up running a cat after i get my tune worked out on the fuel but in the mean time, hopefully the Hahn exhaust will not disappoint when it gets thrown on.
also off topic- i ordered a 2.7 to replace my 2.8 and went ahead and ordered a new intercooler pump as well.
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