Four Codes after Dealer Cat Replacement
08-22-2015 | 04:23 PM
#27
LMAO 
All kidding aside... I agree with you. Most LSJs sounds like **** catless - loud, raspy, etc.
I've run 3 different exhaust setups myself. Currently catless. Zero rasp and actually pretty quiet. I contribute that to the huge ZZP whisper resonator I have on there... ***** huge. Probably also the fact that I'm running a ported blower with a 2.7 ring... WOT the blower gets nice and loud... Must drown out the exhaust
.
Just gotta defend my argument at least once. My car runs a ton better catless, I was sick after a clogged cat, then gutted cat, so I just went catless. Car pulls hard and I dropped about 1-2 psi just from a free flowing exhaust (less boost, but more efficient is what I'm getting at.) I think I have an old video of mine at the dyno from the rear if you would like to hear it. It's quiet with my whole setup IMO.
Only way to compensate a catless LSJ (blower setup) is having a big resonator. ZZP whisper cat back or corsa touring are my only recommendations since I have experience and heard them both in person.
BTW- did changing the fuse fix it?
All kidding aside... I agree with you. Most LSJs sounds like **** catless - loud, raspy, etc.
I've run 3 different exhaust setups myself. Currently catless. Zero rasp and actually pretty quiet. I contribute that to the huge ZZP whisper resonator I have on there... ***** huge. Probably also the fact that I'm running a ported blower with a 2.7 ring... WOT the blower gets nice and loud... Must drown out the exhaust
.Just gotta defend my argument at least once. My car runs a ton better catless, I was sick after a clogged cat, then gutted cat, so I just went catless. Car pulls hard and I dropped about 1-2 psi just from a free flowing exhaust (less boost, but more efficient is what I'm getting at.) I think I have an old video of mine at the dyno from the rear if you would like to hear it. It's quiet with my whole setup IMO.
Only way to compensate a catless LSJ (blower setup) is having a big resonator. ZZP whisper cat back or corsa touring are my only recommendations since I have experience and heard them both in person.
BTW- did changing the fuse fix it?
Last edited by CobaltSS 16; 08-22-2015 at 04:34 PM.
08-23-2015 | 12:03 AM
#28
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Joined: 06-03-07
Posts: 14,148
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From: NY
Four Codes after Dealer Cat Replacement
Yea the fuse was the culprit. All of the sensors are probably protected on that same circuit. The whisper resonator looks nice I know I contemplated using one with a setup I had. I ended up using a huge oval muffler made by walker instead. Super quiet but it hung down too low under the car since it was so big. I used to scrape it all the time.
08-23-2015 | 12:36 AM
#29
Senior Member
Joined: 08-31-12
Posts: 3,193
Likes: 54
From: MD
LMAO
All kidding aside... I agree with you. Most LSJs sounds like **** catless - loud, raspy, etc.
I've run 3 different exhaust setups myself. Currently catless. Zero rasp and actually pretty quiet. I contribute that to the huge ZZP whisper resonator I have on there... ***** huge. Probably also the fact that I'm running a ported blower with a 2.7 ring... WOT the blower gets nice and loud... Must drown out the exhaust .
Just gotta defend my argument at least once. My car runs a ton better catless, I was sick after a clogged cat, then gutted cat, so I just went catless. Car pulls hard and I dropped about 1-2 psi just from a free flowing exhaust (less boost, but more efficient is what I'm getting at.) I think I have an old video of mine at the dyno from the rear if you would like to hear it. It's quiet with my whole setup IMO.
Only way to compensate a catless LSJ (blower setup) is having a big resonator. ZZP whisper cat back or corsa touring are my only recommendations since I have experience and heard them both in person.
BTW- did changing the fuse fix it?
All kidding aside... I agree with you. Most LSJs sounds like **** catless - loud, raspy, etc.
I've run 3 different exhaust setups myself. Currently catless. Zero rasp and actually pretty quiet. I contribute that to the huge ZZP whisper resonator I have on there... ***** huge. Probably also the fact that I'm running a ported blower with a 2.7 ring... WOT the blower gets nice and loud... Must drown out the exhaust
.Just gotta defend my argument at least once. My car runs a ton better catless, I was sick after a clogged cat, then gutted cat, so I just went catless. Car pulls hard and I dropped about 1-2 psi just from a free flowing exhaust (less boost, but more efficient is what I'm getting at.) I think I have an old video of mine at the dyno from the rear if you would like to hear it. It's quiet with my whole setup IMO.
Only way to compensate a catless LSJ (blower setup) is having a big resonator. ZZP whisper cat back or corsa touring are my only recommendations since I have experience and heard them both in person.
BTW- did changing the fuse fix it?
08-23-2015 | 11:14 AM
#30
From the rear:
From the front:
Vibrant header/downpipe combo (catless) with a ZZP 2.5" Catback. Nice and deep around town, no rasp. When you step on it you'll hear it. I wish it was a little louder sometimes TBH. Supports my ~300whp setup quite well.
From the front:
Vibrant header/downpipe combo (catless) with a ZZP 2.5" Catback. Nice and deep around town, no rasp. When you step on it you'll hear it. I wish it was a little louder sometimes TBH. Supports my ~300whp setup quite well.
08-23-2015 | 05:52 PM
#32
http://vid48.photobucket.com/albums/...psc2dba318.mp4
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