I'm so delirious now to the point that I wanna play spin the bottle on which catback to match with my LT's. lol Everyday I change my mind and its getting ridiculous. lol I found out that the spintech split rear system won't even match up to my LT's. The Flowmaster american thunder sounds good but I don't want aluminized steel that'll rust out eventually. Corsa sounds real good but its priced so high, plus having to go through the trouble of getting a custom dual exhaust tip since I don't like the single one. Loudmouth 1 is the lone survivor, but I'm skeptical about that one too. Sound clips are cool but what I really wish is that I could have a bunch Goats lined up somewhere with each of these systems. Just venting.
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04 Goat M6, Phantom Black
Magnaflow 14362's, K&N FIPK,
Skip Shift Eliminator
Kooks 1 3/4LT's(catted mids), resonators delete
Trueblue SAP grills, Aftermarket Tails
329rwhp/339lbs tq/HP Tune "the last of the V8 interceptors, it'd be a shame to blow it up!" Road Warrior 1981
02 Z28 A4 Artic White R.I.P 5/5/07(still missed)
Have you looked at the borla catback? I have Kooks stepped headers, no cats and the borla exhaust and it sounds awesome. I would think with the cats it would be a bit quieter but would still sound great. Here are some vids of my exhaust
2004 Torrid Red A4
New Era Intake, Corsa Touring, JBA shorties/mids, modded IAT, T/C Chimp, '06 calipers, DBA rotors, Russel SS lines, Pedders RR bushings, Monaro center caps, '05 Red cluster by Chris White, SCSS dashpod w/Aeroforce gauges, Pioneer Avic D3, headlight armor taillight tint and graphite 17's.
14.086 @ 99.14 first run ever... hopefully it gets better
On the way/waiting to go in:
SS-TQ cam
Port and polished 243's from pm-fl.com
Valvetrain upgrades
I had kooks and the lm1 and it was just to loud. The stock catback I thought sounded the best and if you want a split tip set up get a stock 05-06 catback.
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08 c6 z06 H/C/I TT numbers soon
06 srm m6 stock
04 bbm m6 parts
05 cgm a4 parts
08 Silverado ECSB DBM Z71 (DD)
80 Z-28 Factory cowl induction 4 speed (lsx 6speed swap coming soon)
03 srt-4 yellow 6k miles $8800 has a rebuilt title
Im running LT's and the LM1 and i think it sounds great. If you like loud this setup is for you...untill you add a cam. Then its just too damn noisy. Its quiet when normal driving (i have a M6 so i can keep my rpms low) but insane when under WOT. You can literaly hear the car for a mile with this setup, however so can everyone else including the police. So if you can keep yourself under restraint or dont care about a ticket, go for it. If you want to drive it like you stole it and not have the attention to go with it, then id say pick magnaflow. Thats my next catback.
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2004 GTO--M6--Black on Black
SLP LM1, SLP LT's with gutted cats, AEM cold air intake, '06 tail lights, 20% tint, 275 Nitto NT555R's, Speed Inc. tune, 333 RWHP/350 RWTQ The difference between men and boys, are the size of their toys... www.fquick.com/04_GTO_Jimbo
Magnaflow has been the best choice by far that I've ever installed. Around town driving is nice & docile so it won't get on your nerves, but it screams at WOT. Makes great power too. Magnaflow mufflers flow more cfm than almost anybody else.
Considering that I did have cutouts where my resonators were, that's drone as drone can be and loud as loud can be so drone doesn't bother me cause the sound was right up under me. I want a good muscular sound but not too exoticish. I wanna be able to here the car while cruising the streets.
Have you looked at the borla catback? I have Kooks stepped headers, no cats and the borla exhaust and it sounds awesome. I would think with the cats it would be a bit quieter but would still sound great. Here are some vids of my exhaust
Which one of these systems is yours cause it looked like the split rear one doesn't curve to the LT's.
That's because they don't have it oriented correctly. It would be really stupid of them to make a catback that didn't mate up to midpipe output (which is the same regardless of header manufacturer)
That's because they don't have it oriented correctly. It would be really stupid of them to make a catback that didn't mate up to midpipe output (which is the same regardless of header manufacturer)
So basically would the split rear match up behind my hi flows cause the split rear one looks like the pipes are straight. The one on Maryland speed says it says it has an x pipe to go with the split rear. Would that match?
That's why I switched mine out...def. had that raspy Corsa sound to it which I didn't care for. It was loud as hell but you didn't have that "rumble" at idle, etc.
I finally found the sound I was looking for...'04 Borla and replaced the Borla mufflers with Spintech SuperProStreets...now I'm in heaven, exactly the sound I was looking for.
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Dynatech LT's, Hot Cam 219/228 112, Vig 3200 Stall, B&M Tranny Cooler, Tuned by Slowhawk Performance, QTP Electric Cutouts, Custom Borla/Spintech exhaust, Bo White Ported TB, BMR TB Bypass, K&N CAI, Pedders 0" front..5/16" drag, Koni shocks, Cquence Cross Drilled/Slotted rotors, Monroe SensaTrac struts, Klearz sidemarkers, Custom polished calipers, Gentex mirror, 50%/35% Tint, Jorge Candy Blue tails, 6000K HID, Staggered TSW Thruxtons, Hardwired Blue x50
...it looked like the split rear one doesn't curve to the LT's.
Don't make an assumption based on a marketing photo. The '04 and '05/06 cars use different mid-pipes and catbacks; the one in the photo with the straight pipes may be intended for the '05/06 cars (even though the flange is wrong).
If Spintech offers a split system for the '04, it will have the correct pipes/flanges to mate with the '04 mid-pipes. Do note that the Spintech system will be aluminized, which is contrary to one of your original requirements.
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Mike - Impala herder with a stray Goat.
2004 PBM/Black/M6 - 1 of a bunch - Stuff's been done.
2004 GTO Owner
