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Old 07-07-2012, 01:01 PM   #1
Denver_97subie
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Default Delete resonator or cat?? 97 LGT

Ok gents, come this Tuesday im going to install my vibrant street performance muffler.iv been searching like crazy Hoping i get the sound im looking for right the first time! The wonderful " GROWL " i love from these subies.I went to a few mechanics to price check one told me deleting one cat was illegal >=l so they suggested remove the resonator.good or bad idea? I want a deep but loud growl something i can hear from inside my car as well.if i need to delete a cat ill find a Mechanic that will! That first Mechanic also suggested that the 2inch stock piping was good enough that putting 2.5 was useless?? Any advise would be greatly appreciated!
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Old 07-08-2012, 04:33 PM   #2
DLC
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2-2.25" is the recommended size for NA applications. Any larger is pretty much a waste.

Removing a resonator is a cheap, quick, and easy way to get more sound. Also, there are many options for High-flow cats out there that won't break the bank. Your car is far past the point of age and mileage where you can replace it legally.
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Old 07-09-2012, 01:04 PM   #3
Denver_97subie
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Quote:
Originally Posted by DLC
2-2.25" is the recommended size for NA applications. Any larger is pretty much a waste.

Removing a resonator is a cheap, quick, and easy way to get more sound. Also, there are many options for High-flow cats out there that won't break the bank. Your car is far past the point of age and mileage where you can replace it legally.
You've been a big help with all my questions DLC thanks bro!!
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Old 07-10-2012, 05:46 PM   #4
ElTauro
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I ended up deleting the 3rd cat and stock resonator. I put a small straight through res where the stock one was, and a si/so magnaflow muffler at the rear. 2.25" piping all the way back. The sound is deep and mellow (when the damn heat shields aren't rattling), and seems like the car picked up a bit of top end, with no loss of low-end power.

The stock manifold/y-pipe design wont give you that "rumble" like the turbo or UEL header cars have, but it still sounds pretty nice.
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Old 07-11-2012, 03:07 PM   #5
Denver_97subie
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Quote:
Originally Posted by ElTauro
I ended up deleting the 3rd cat and stock resonator. I put a small straight through res where the stock one was, and a si/so magnaflow muffler at the rear. 2.25" piping all the way back. The sound is deep and mellow (when the damn heat shields aren't rattling), and seems like the car picked up a bit of top end, with no loss of low-end power.

The stock manifold/y-pipe design wont give you that "rumble" like the turbo or UEL header cars have, but it still sounds pretty nice.
I had almost the same thing done! Had them delete the third cat and resonator.and they 2.5 piped all the way back to the used magnaflow muffler i bought off of criagslist..its nice and deep with my uel's. it sounds nice at low rpms but the higher i go it kind of dies out but not much.im kind of thinkin i want it deeper!?
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Old 07-11-2012, 04:36 PM   #6
ElTauro
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Nice! I plan on removing the 2nd cat sometime soon (leaky flange near it), and may add in a slightly larger resonator. Since the main cat is the only one with a sensor on it, the other 2 can get chopped off and won't cause a CEL. Hoping for a smidge more sound, and to get rid of that high-rpm "die out" that you speak of.

A resonator should help in the "deepness" department. Just a straight through perforated core design should do the trick.

Any pics of the new setup?
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Old 07-11-2012, 08:36 PM   #7
Denver_97subie
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Quote:
Originally Posted by ElTauro
Nice! I plan on removing the 2nd cat sometime soon (leaky flange near it), and may add in a slightly larger resonator. Since the main cat is the only one with a sensor on it, the other 2 can get chopped off and won't cause a CEL. Hoping for a smidge more sound, and to get rid of that high-rpm "die out" that you speak of.

A resonator should help in the "deepness" department. Just a straight through perforated core design should do the trick.

Any pics of the new setup?
Ok i see, then maybe I can delete the second cat as well make the " main cat " highflow with a highflow res? =] i can hear it now! Lol yeah i took a few not sure how i can post im using android
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Old 07-15-2012, 02:33 PM   #8
DLC
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To post pictures you must first put them up on a site like photobucket or the like, then insert them using a web browser.
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Old 07-15-2012, 02:44 PM   #9
Denver_97subie
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Ill make a photobucket right now.thank you
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Old 07-15-2012, 03:33 PM   #10
Denver_97subie
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Talking



[IMG][/IMG]
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Old 07-15-2012, 03:37 PM   #11
Denver_97subie
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Old 07-15-2012, 03:50 PM   #12
DLC
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You need links to the .jpg files, not URLs.
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Old 07-17-2012, 12:58 AM   #13
octain11
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i did high flow car and mid straight pipe, with a stromung axle back, nice rumble and drone isnt too loud
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Old 07-18-2012, 12:33 PM   #14
Denver_97subie
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https://www.youtube.com/watch?v=75rO...e_gdata_player

If this works let me know,ill upload something better.I find this easyer.
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