So I got bored and headed down to the ol speed shop today and had them put in a new 3" downpipe, Magnaflow racing cat , and deep 6 my resonator. Sounds alright, a little louder than stock, and I feel a noticable difference in power, and a very noticable change in the whole feel of the car. PEMs are next, then pcm, then 3.4.
I just had to tell someone.

Sound clips??

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nice man, your pretty much doing what i did, i went with 3" exhaust to 2.5" duals into magnaflow, then got a 3" catless downpipe, pem and cc crossovers, but yes. i got a high flow magnaflow cat put back on, it sonds like ass with no cat, youll see a HUGE amount of difference when you change out the front power log, its awesome.

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Got my front Powerlog ordered last night...scheduled for delivery on the 10th. I cant wait. I also got a set of NGK TR55s. Gotta get put together soon cuz my plans are an Overkill pcm then a smaller pulley. Seems ZZP says with my mods a 3.4 is too small, and they recommend a 3.6. Whatev though, the turbo will be on this time next year. Thoughts about the pulley?

Oh and btw...I gotta get different mufflers cuz it doesnt have the right tone. Im thinking Flowmasters, they seem to sound nice on Utube.

What year car do you have and what will your mod list be when you go to do the pulley?

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'02 Galaxy Silver GTX Coupe. SLP Headers, SLP cat-back exhaust, SLP 1.8 RR, ZZP 3.4/3.25" MPS, SLP hood, SLP CAI, Overkill PCM, 180 t-stat, SSIC, S1 TB, AL 104's, F/R STB's, F-body calipers.

I have an 06 GT. When ther pulley goes on Ill have a 3" dp, magnaflow racing cat, res delete, ngk tr55s, 180 stat, plog, and an Overkill pcm, and a neat air freshener that smells like leather cuz my leather has lost its smell.

If your lookin at flowmasters i got 40 series on my 07 and i can say they sound great.. and if u want a sound clip i can see what i can do...and that way if u want something specific like a drive-by or something along those lines i can do it for ya

that would be cool

with the air freshner id say u can prolly run a 3.2 but i would recommend a scan
yeah u should b a able to run a 3.5 but i STRONGLY recommend that u use 104 autolites and dont forget the CAI

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Black 06 GP GT
S2 IC, 1.9 Rockers, TOG Headers w/ full custom exhaust, CAI, 104 Autolites, Custom Tuned PCM, 3.3....
And still Working its way up....

youre gonna be running pig rich and losing power running a 3.4 on pems. spend the $250 and get headers...

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'05 WRX STi - COBB Stage 2|Invidia DP|3" Borla XR-1|Coilovers|Camber Plates|Swaybars|Endlinks|Bushings|Braces|Anti Lift Kit|DBA4000s|SS lines|
Sold: 06 Cobalt SS/SC, 99 GTP 245WHP/326 Ft-lbs, 06 R6

i would spend the money and have someone custome tune it over getting a tune in a can. Those tunes in a can all do the same thing, pull timing, add lots of fuel, and de-sensitize the knock sensors.

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1999 Pontiac Grand Prix
303HP/353TQ
Mods: L67 swap w/3.25" pulley,PRJ LL cam, speed daddy headers
2008 BMW 335i TT-jb4 tune.BMS intake.AA bOV and charge pipe

Ill prolly stick with a 3.6. I do know a guy who knows these cars well that deos a custom tune. Im not gonna go too far right now cuz I still have the v8 itch. Ill either turbo this one or get a GXP. I really miss my Firehawk, and my son is getting big enough now to where he can ride without a car seat so I dont necessarily need 4 doors anymore. Ive had 4 4th gen f bodies and theyre the car that stuck in my blood. My ideas on hotrodding were really dimmed when Pontiac was announced on the chopping block.

not necessarily. every bodies car is different. i was running with PEM's forever along with a stg 3 IC, 3.0 pulley and such. i finally got headers about 2K miles before i demodded.

*BUT...yes i agree, skip the PEM's and just get the headers

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"it doesnt matter what speed it will reach, it matters how fast it will reach that speed."

i/c makes a huge difference though

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'05 WRX STi - COBB Stage 2|Invidia DP|3" Borla XR-1|Coilovers|Camber Plates|Swaybars|Endlinks|Bushings|Braces|Anti Lift Kit|DBA4000s|SS lines|
Sold: 06 Cobalt SS/SC, 99 GTP 245WHP/326 Ft-lbs, 06 R6

before the IC i was running a 3.4 setup with 0* kr

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"it doesnt matter what speed it will reach, it matters how fast it will reach that speed."

^X2 i was runing a 3.4 and i wasnt runing too rich... i think LTFT's were locking at -0.7 and STFT's at 0.0 but now im back to 3.5 and i gota shit load of mods to put in when i come back from holidays

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Black 06 GP GT
S2 IC, 1.9 Rockers, TOG Headers w/ full custom exhaust, CAI, 104 Autolites, Custom Tuned PCM, 3.3....
And still Working its way up....

yes they do yes they do


*sadly looks at sig*

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92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater