AWeb80 Posted May 15, 2008 Report Share Posted May 15, 2008 I'm Looking At Getting A Custom DP Made Since The Stock One Is Soo Small....Less Than 2" I.D. Should I In With A 2.5" DP And 2.25 Inch Piping All The Way Back? And What Brand Of Muffler? MagnaFlow? And What Model? Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted May 15, 2008 Report Share Posted May 15, 2008 You can easily fit a 2.5" DP. Thats what I would go with. Since you have duals on your car, Id run 2.5" pipe to the duals, then 2.25" back to the tips. Ill get some sound clips up soon of my exhaust with dynomax mufflers on it. You will NEED a resonator. My brand of choice if Vibrant. Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted May 15, 2008 Report Share Posted May 15, 2008 ohh and I almost forgot! if you go with a 304 stainless pipe like I did, you cannot weld that to the stock flange. You need to run a weld around it, then TIG to that weld. The pipe and the flange will not TIG weld together. Quote Link to comment Share on other sites More sharing options...
BIGBULS Posted May 15, 2008 Report Share Posted May 15, 2008 If you want power, mandrel bends are a MUST. I ALSO strongly suggest stainless, as midwestern winters can kill an aluminized exhaust in as little as 2-3 years. Kinda sucks to spend that much cash every couple of years........ As for other components, I would suggest any kind of good, straight-through mufflers (such as all Borla's, almost all Magnaflows and Dynomax's Ultraflow line) and resonator and a good catalytic convertor. Also, *I* would suggest 2.25inch piping (remember....mandrel bends) unless you plan on a swap or hybridizing your engine later. Canada's old Beretta (when it still had the 3100) made 138whp with an RSM WAI, an FFP UDP and a customer mandrel bent 2.25in exhaust with an Extremeflow cat and a Dynomax Ultraflow muffler.............I can ALSO tell you about another Beretta with almost identical mods, but with a 2.5in PRESS bent exhaust that made LESS power. You do the math Either way, a 2.25in exhaust done RIGHT will outflow a basic 2.5in setup and is MORE than enough for the little L82. Quote Link to comment Share on other sites More sharing options...
AWeb80 Posted May 15, 2008 Author Report Share Posted May 15, 2008 I Don't Drive Winters, So Type Of Pipe Doesn't Matter. And Of Course I Will Get Mandrel bent pipe. And No Cat Quote Link to comment Share on other sites More sharing options...
3.1cutlass Posted May 16, 2008 Report Share Posted May 16, 2008 I am running some cheapo resonator at my dp followed by a flowmaster delta force muffler and it is 2.5 back to the y and 2.25 from there out to camaro z-28 tips. Some people here can vouch for my car sounding pretty badass. Quote Link to comment Share on other sites More sharing options...
gpchris Posted May 16, 2008 Report Share Posted May 16, 2008 quick questions... Im planning an exhaust alot like adams. Where should I put the resonator? Where the cat used to be or where the factory res is? Quote Link to comment Share on other sites More sharing options...
White93z34 Posted May 16, 2008 Report Share Posted May 16, 2008 Does anyone make headers for a 3.1/3100?? that would be an excellent place to start!? Quote Link to comment Share on other sites More sharing options...
AWeb80 Posted May 16, 2008 Author Report Share Posted May 16, 2008 I am running some cheapo resonator at my dp followed by a flowmaster delta force muffler and it is 2.5 back to the y and 2.25 from there out to camaro z-28 tips. Some people here can vouch for my car sounding pretty badass. soumd clip? Quote Link to comment Share on other sites More sharing options...
3.1cutlass Posted May 16, 2008 Report Share Posted May 16, 2008 I am running some cheapo resonator at my dp followed by a flowmaster delta force muffler and it is 2.5 back to the y and 2.25 from there out to camaro z-28 tips. Some people here can vouch for my car sounding pretty badass. soumd clip? I will make one this afternoon for ya. Does anyone make headers for a 3.1/3100?? that would be an excellent place to start!? No Quote Link to comment Share on other sites More sharing options...
per0781 Posted May 16, 2008 Report Share Posted May 16, 2008 I Don't Drive Winters, So Type Of Pipe Doesn't Matter. And Of Course I Will Get Mandrel bent pipe. And No Cat aluminized steel exhaust will still rust out. Quote Link to comment Share on other sites More sharing options...
AWeb80 Posted May 16, 2008 Author Report Share Posted May 16, 2008 What Is The Factory Pipe Then? Mine Is Stock And Is Still In Great Condition With Some Surface Rust. Quote Link to comment Share on other sites More sharing options...
spiderw31 Posted May 16, 2008 Report Share Posted May 16, 2008 It's probably stainless. I've still got the original stainless pipes on my Fiero, and they look just as you describe. Aluminized will still rot out from the inside because the moisture from combustion can puddle in various places. Quote Link to comment Share on other sites More sharing options...
3.1cutlass Posted May 16, 2008 Report Share Posted May 16, 2008 What Is The Factory Pipe Then? Mine Is Stock And Is Still In Great Condition With Some Surface Rust. Factory is 2" ID iirc Quote Link to comment Share on other sites More sharing options...
AWeb80 Posted May 16, 2008 Author Report Share Posted May 16, 2008 What Is The Factory Pipe Then? Mine Is Stock And Is Still In Great Condition With Some Surface Rust. Factory is 2" ID iirc I meant type Josh....lol I know it is 2" Quote Link to comment Share on other sites More sharing options...
3.1cutlass Posted May 16, 2008 Report Share Posted May 16, 2008 Oh well i am pretty sure it sucks whatever it is. Video http://s200.photobucket.com/albums/aa72/mckinney16/?action=view¤t=100_5517.flv Quote Link to comment Share on other sites More sharing options...
Euro Posted May 16, 2008 Report Share Posted May 16, 2008 that sounds awesome Quote Link to comment Share on other sites More sharing options...
BIGBULS Posted May 16, 2008 Report Share Posted May 16, 2008 GM factory exhausts are all T-409 stainless steel. This is the unpolished stuff that will disscolor and show surface corrosion, although it will NEVER rust through (ok...almost never ). Compare this to T-304 stainless............that is the shiny, polished stuff that Borla, Corsa etc all make their exhausts out of. It's more $$ (and oddly enough, more COMMON), but looks awesome for years and years...... Oh, and don't be afraid to RUN a cat. They only restrict power slightly (cat vs test pipe at your power level is likely only a 1hp loss), and they will help clean up the sound a little (almost like a 2nd resonator). Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted May 16, 2008 Report Share Posted May 16, 2008 I had a FULL 2.5" exhaust on my 3100 and it fucking MOVED. You have to remember the stock log manifolds dont flow good, so a 2.5" DP and exhaust will help this. If you do run a cat, run a high flow cat. and yes I highly suggest using 304 stainless. Quote Link to comment Share on other sites More sharing options...
BXX Posted May 16, 2008 Report Share Posted May 16, 2008 Oh well i am pretty sure it sucks whatever it is. Video http://s200.photobucket.com/albums/aa72/mckinney16/?action=view¤t=100_5517.flv Yeah, yours does sound pretty decent, but the only time that night you were in front of me, it smelled like ass. Put a cat on it Quote Link to comment Share on other sites More sharing options...
3.1cutlass Posted May 17, 2008 Report Share Posted May 17, 2008 Oh well i am pretty sure it sucks whatever it is. Video http://s200.photobucket.com/albums/aa72/mckinney16/?action=view¤t=100_5517.flv Yeah, yours does sound pretty decent, but the only time that night you were in front of me, it smelled like ass. Put a cat on it No thanks not worth it now Quote Link to comment Share on other sites More sharing options...
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