Exhaust Mods? Stop Here!
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Expert Gearhead
Joined: Dec 2002
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From: Mississauga, Ontario
Originally Posted by smellbird
Originally Posted by OLBlueEyesBonne
Doing the muffler too? Magnaflow or 80 Series?
But if you want Borla info, Custom has it on his Rivi
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Posts like a V-Tak
Joined: Apr 2004
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From: Midland, MI
I'm getting an 80 series installed on my 98 ssei....can i keep the stock tips or should i get new ones? If the preformance is the same, and they dont make the muffler sounds weak id like to keep them for monetary reasons. Any feedback in appreciated. Thanks, Blake
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From: Eden Prairie, MN
tips will make no difference in performance, and generally no difference in sound.
keep the stock tips for the "sleeper" look
or some common ones are these
http://www.pfyc.com/store/merchant.m...ory_Code=GPEXH
keep the stock tips for the "sleeper" look
or some common ones are these
http://www.pfyc.com/store/merchant.m...ory_Code=GPEXH
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Posts like a 4 Banger
Joined: Nov 2003
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From: Boston, MA
I've got all sorts of questions today!
I want to put in a high-flow cat and muffler. I measured the pipe between my cat and muffler and it looks like it'* 2.25".
1) I need a high-flow cat. Considering the Magnaflow Universal short oval cat, P/N 94105. Good? Bad?
2) Supposedly this car came without a resonator from the factory. Does this mean that a Flowmaster 80 is going to sound particularly loud? I really don't want something too loud... a nice low rumble is good, muscle-car sound is bad.
3) Are GM high-flow mufflers available at a reasonable price?
4) Any reason to increase the diameter of the downpipe?
5) The factory muffler is single-in, single-out, with no cutout in the bumper. Can I do a single-in, dual-out muffler? That'* just for show and doesn't affect the flow, right?
Jeremy
I want to put in a high-flow cat and muffler. I measured the pipe between my cat and muffler and it looks like it'* 2.25".
1) I need a high-flow cat. Considering the Magnaflow Universal short oval cat, P/N 94105. Good? Bad?
2) Supposedly this car came without a resonator from the factory. Does this mean that a Flowmaster 80 is going to sound particularly loud? I really don't want something too loud... a nice low rumble is good, muscle-car sound is bad.
3) Are GM high-flow mufflers available at a reasonable price?
4) Any reason to increase the diameter of the downpipe?
5) The factory muffler is single-in, single-out, with no cutout in the bumper. Can I do a single-in, dual-out muffler? That'* just for show and doesn't affect the flow, right?
Jeremy
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My answers are in italics under your questions:
Originally Posted by bigJ
1) I need a high-flow cat. Considering the Magnaflow Universal short oval cat, P/N 94105. Good? Bad?
Sure. Or carsound, or any other high flow cat. If it'* high-flo, go for price.
2) Supposedly this car came without a resonator from the factory. Does this mean that a Flowmaster 80 is going to sound particularly loud? I really don't want something too loud... a nice low rumble is good, muscle-car sound is bad.
No resonator on a 93. ANY performance exhaust will sound raspier than a car with a resonator. I was just talking to my exhuast guy about adding a resonator or resonator tips today.
3) Are GM high-flow mufflers available at a reasonable price?
Available? Yes. But much better performance is available for a lower price aftermarket.
4) Any reason to increase the diameter of the downpipe?
No. Especially on a non-supercharged model that isn't going to be heavily modded. My downpipe is still stock, and even with my mods, I wouldn't gain more than 5hp from it. The cost makes it prohibitive for that little 5hp.
5) The factory muffler is single-in, single-out, with no cutout in the bumper. Can I do a single-in, dual-out muffler? That'* just for show and doesn't affect the flow, right?
You can really go either way you want for looks or sound. The main idea is to not open your exhaust up to more than 2.5". Any more, and you'll lose backpressure and low-end torque. Bad news considering our engines were designed for low-end torque. Stick with the stock 2.25" exhaust or bump to 2.5", and any outlet/tip configuration you'd like. You'll be fine.
Sure. Or carsound, or any other high flow cat. If it'* high-flo, go for price.
2) Supposedly this car came without a resonator from the factory. Does this mean that a Flowmaster 80 is going to sound particularly loud? I really don't want something too loud... a nice low rumble is good, muscle-car sound is bad.
No resonator on a 93. ANY performance exhaust will sound raspier than a car with a resonator. I was just talking to my exhuast guy about adding a resonator or resonator tips today.
3) Are GM high-flow mufflers available at a reasonable price?
Available? Yes. But much better performance is available for a lower price aftermarket.
4) Any reason to increase the diameter of the downpipe?
No. Especially on a non-supercharged model that isn't going to be heavily modded. My downpipe is still stock, and even with my mods, I wouldn't gain more than 5hp from it. The cost makes it prohibitive for that little 5hp.
5) The factory muffler is single-in, single-out, with no cutout in the bumper. Can I do a single-in, dual-out muffler? That'* just for show and doesn't affect the flow, right?
You can really go either way you want for looks or sound. The main idea is to not open your exhaust up to more than 2.5". Any more, and you'll lose backpressure and low-end torque. Bad news considering our engines were designed for low-end torque. Stick with the stock 2.25" exhaust or bump to 2.5", and any outlet/tip configuration you'd like. You'll be fine.
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Posts like a Supercharger
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From: Providence, RI
I have a 92 SE and i would like to get a magnaflow exhaust, but i have no idea which one to get. i read through all the posts in this thread and i still am clueless. Could anyone help me out?
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Joined: Dec 2002
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From: Sauk Centre, MN
Originally Posted by maxpower9004
I have a 92 SE and i would like to get a magnaflow exhaust, but i have no idea which one to get. i read through all the posts in this thread and i still am clueless. Could anyone help me out?
Hope someone can help you out here soon.
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Just found out why the stock aluminum "Fart Cannons" on my car are so thick.
They act as skid plates when you miss your turn on the freeway and have to go across the center divide that has a big dip in it.
Forgot I wasn't driving my Jeep.
They act as skid plates when you miss your turn on the freeway and have to go across the center divide that has a big dip in it.
Forgot I wasn't driving my Jeep.