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Discussion Starter #1
I'm looking into finally upgrading the exhaust on my 1990 SC. So far all I've done is removed the stock mufflers. But I want to completely replace all the pipes from just behind the manifolds and back. I found cat's with pipes, that eliminate that stupid 90 degree bend on the driver's side. I want to get an X-pipe and run a true dual exhaust and replace the gas tank with the newer style with the smaller bend. The part I really need input on is the mufflers, I've read a few guys going with the borla's, but I'm not sure what ones they are using/ cost? I was wondering if anyone has used Flow master Super 40 Delta's and what their opinion of them are. I def. don't want my car to sound like a ricer, but I'm looking to get some tone out of her. Any advice or help finding the best/ cheapest way to find all my parts would be awesome.
Thanks in advance.
 

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Do you want flow or sound?

Flow dictates signal exhaust (can Y in and Y out ) for as much and possible. Borla flows the best hands down, but if you like the Flowmaster sound you will not like Borla nor Magnaflow (the second best flowing and best bang for the buck).

I have a complete borla setup on my SC and is nice and quite for the most part for a 2.5-3-2.5 system can be. The engine drowns the exhaust out at anything over light throttle.

I figure though since you said dual exhaust and Dronemasters that the sound you want.

A set of Borla Turbos is about $160 each.

I like the fact that nothing on my exhaust will rust though.
 

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Discussion Starter #3
Both?

I kind of want the best of both so to speak, or as close as i can get. I want to open up the flow, but I also want to have a little tone out of the car. I'm kind of tired of a moped being louder than my car... ya know?
 

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If stock is too quite then you will not be too happy with Borla, for its not much louder.

Noise does not make power... well unless that's a whistle form under the hood :D
 

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I'm looking into finally upgrading the exhaust on my 1990 SC. So far all I've done is removed the stock mufflers. But I want to completely replace all the pipes from just behind the manifolds and back. I found cat's with pipes, that eliminate that stupid 90 degree bend on the driver's side. I want to get an X-pipe and run a true dual exhaust and replace the gas tank with the newer style with the smaller bend. The part I really need input on is the mufflers, I've read a few guys going with the borla's, but I'm not sure what ones they are using/ cost? I was wondering if anyone has used Flow master Super 40 Delta's and what their opinion of them are. I def. don't want my car to sound like a ricer, but I'm looking to get some tone out of her. Any advice or help finding the best/ cheapest way to find all my parts would be awesome.
Thanks in advance.
if you do an online search, there are alot of good flow test that have been done on mufflers includes:

broaderperformance.com/muffler_flow_tests.htm (Independently tested cfm flows of the more popular mufflers, glasspacks and resonators.

http://www.popularhotrodding.com/eng...../index1.html (this is an indepth artical that tests not only the mis-conception of flow demand but also how placement of a muffler (a glass pack in this dyno test) can actually "fool " the system into thinking that it is essentially a straight pipe.

I have listed here a muffler shootout test done by CAR CRAFT:

The Mufflers
MAKE MODEL Part No. COST
SUMMIT Turbo 630125 $14.75
THRUSH Magnum Glasspack 24214 $16.50
THRUSH Boss Turbo 17718 $23.95
HOOKER Competition 21006 $25.95
DYNOMAX Super Turbo 17733 $28.50
DYNOMAX Race Magnum 24215 $31.95
HOOKER Super Competition 21106 $35.95
SUMMIT Fully Welded 630325 $38.69
FLOWTECH Afterburner 50322 $39.95

MUFFLER FLOW TEST

MUFFLER Flow at 28-in H20
DynoMax Race Magnum 528.64 cfm
Thrush Magnum Glasspack 507.40 cfm
Summit Fully Welded 343.38 cfm
Flowtech Afterburner 342.20 cfm
DynoMax Super Turbo 333.94 cfm
Hooker Competition 232.46 cfm
Hooker Super Competition 320.96 cfm
Summit Turbo 331.16 cfm
Thrush Boss Turbo 297.36 cfm

MUFFLER Idle dB WOT dB
DynoMax Super Turbo 89 123
DynoMax Race Magnum 94 133
Flowtech Afterburner 92 124
Hooker Competion 92 122
Hooker Super Competion 90 125
Summit Turbo 89 124
Summit Fully Welded 92 125
Thrush Boss Turbo 90 123
Thrush Magnum Glasspack 92 128

DYNO TEST
All mufflers were dyno-tested on a 355-cube SBC with 10.0:1 compression, Air Flow Research 190 aluminum heads, a CompCams 292 hyd. a Victor Jr. intake, a Holley 750-cfm double-pumper, and 1 5/8 Headman headers.


MUFFLER HP TORQUE 2,500-6,000rpmAverage
Hooker Competition 397.4 381.1 286.8hp/351.9 lb-ft
Thrush Boss Turbo 407.1 384.9 292.1 hp/357.5 lb-ft
DynoMax Race Magnum 409.5 394.3 298.8 hp/366.9 lb-ft
Flowtech Afterburner 409.7 391.2 294.8 hp/361.7 lb-ft
Thrush Glasspack 409.5 389.8 297.7 hp/365.3 lb-ft
Summit Turbo 411.5 386.3 291.5 hp/357.4 lb-ft
DynoMax Super Turbo 412.7 387.2 292.6 hp/358.6 lb-ft
Hooker Super Comp 413.8 387.2 292.8 hp/359.0 lb-ft
Summit Fully Welded 415.4 390.7 295.6 hp/362.4 lb-ft
 
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