Custom Exhaust

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Mar 25, 2003 | 01:40 AM

lildragn11

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Joined: Dec 2002

Posts: 530

From: CA

Car Info: '05 Saabaru 92x Aero

Custom Exhaust

Hi,

I currently am running an all custom piping exhaust with an aftermarket muffler. I still want to keep the performance but am getting sick of the loud muffler. I was wondering if anyone has done or heard of hooking up a stock WRX muffler or something to custom 2.5" piping?? Will that still yield the same performance enough though i change the mufflers?? Any advice is greatly appreciated!

Mar 25, 2003 | 02:42 PM

X1_SRT

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Posts: n/a

if the ex. system doesn't have any resonators in it, you may want to consider adding one or even two. they don't really impede the flow, and help cut the sound a good deal. by running your stock muffler will pretty much plug up that nice open system you have. i would just try to find a good free flowing, but quiet muffler. thats what i'm in the proccess of doing for my talon. no cat, and no resonator tend be a little loud.

-PJ

Mar 25, 2003 | 05:56 PM

ivbdn

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Joined: Mar 2003

Posts: 189

From: Los Angeles

Adding a resonator solves your problems.

Mar 26, 2003 | 07:32 AM

ImprezaVA

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Joined: Mar 2003

Posts: 137

From: Elkton, Virginia

Car Info: 1998 Subaru Impreza L 2.2

noise

I am still in the slow process of finding all the parts for a custom cat-back for my 2.2L. I was told since I'm not running hi-flow cats the sound won't change too much. Any truth to this? I was wanting to run Stainless Steel components (2.25") from the cat-back so I was debating, should I remove the resonator and replace it with straight 2.25" tubing or try to find a stainless resonator? My goal here is to remain quiet and look stock, but have a good scavenging exhaust system for cheap. Also, the muffler I'm buying is kind of big so that should muffle the sound somewhat even though it’s straight through. Anyone know where I can find stainless exhaust flanges?

-Charles-

Apr 1, 2003 | 03:00 AM

ivbdn

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Joined: Mar 2003

Posts: 189

From: Los Angeles

ImprezaVA:

I don't know how much of a difference, if any, having a 2.2 will make, but when I had my custom exhaust on w/o a resonator, I hit 120 dbA (measured as closely as possible to the SAE standards and no other mods). I would suggest a resonator. A stainless steel one would be nice (but pricey) and would definitely keep the noise level down

Apr 1, 2003 | 05:03 AM

ImprezaVA

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Joined: Mar 2003

Posts: 137

From: Elkton, Virginia

Car Info: 1998 Subaru Impreza L 2.2

LMAO, 120 dB? That is freakin loud. Doesn't the law require that exhaust noise remain below 95 dB's. Thanks for the reply, I believe I will get resonator

. The longer the resonator the more quieting effect it has right?

-Charles-

Apr 1, 2003 | 06:55 PM

ivbdn

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Joined: Mar 2003

Posts: 189

From: Los Angeles

ImprezaVA

It was 120dbA of pure Sube heaven. It was just a bit embarassing when I would turn the car on and set off alarms. It's not annoyingly loud like a Harley, or high pitched like a Honda. It was more of a threatening sound that made a lot of people think twice. I would suggest getting a stainless steel resonator. A regular glasspack would work, but just not as well. You shouldn't have any trouble finding one. A good muffler shop can order one for you.