cat back exhaust
#11
04-29-2009, 02:37 PM
Join Date: Apr 2008
Location: S.F. Bay Area
Posts: 774
GMPP/Magnaflow make a full stainless, great sounding cat back system available from gmpartsdirect.com or any GM dealer, Factory parts that fit perfectly, sound great but not to loud to annoy the Mrs. Includes a short stainless resonator to stop interior droning. It also has 4" double wall polished stainless tips that are adjustable for length so they stick out just as much as you want. If you have a hook at a local dealer or parts house they can order it for you, maybe get a discount (through a parts house usually 20 %) and save on the shipping. It's GM part #12498617. Include all the clamps (stainless too) gaskets and bolts, reuse the existing rubber hangers. Maybe a 20 minute install in the driveway with reg. hand tools. Still do a U bend delete for a nice performance gain for just a couple of bucks at any good exhaust shop, shouldn't take them more than 1/2 hour or so
No I'm not employed by them, I have the system on my Monte and just love it
No I'm not employed by them, I have the system on my Monte and just love it
if you just want the sound, then go for it!
i like the magnaflow sound more than any other exhaust i've heard on our monte's. but thats just my opinion. yours may be different.
#12
04-30-2009, 11:27 AM
Monte Of The Month -- August 2009
Join Date: Jan 2009
Location: Highland, IN
Posts: 5,827
sound/performance... duh! lol
#13
05-01-2009, 05:38 AM
to 04 IMTIMIDATOR
i understand your opinion, however if you had read my original post i little slower you would understand why i was asking about cat back exhaust first. LET ME EMPHESIZE. i am NOT looking for performance right now, nor will i be for quite some time. i am quite happy with the way the car currently runs. IT IS MY WIFE'S CAR. i simply would like it to sound a little louder and know that a cat back exhaust and cai kit would achieve that!! thanks to MONTE MY PYTHON for the info about the magnaflow kit.
#14
05-01-2009, 10:48 AM
Join Date: Apr 2008
Location: S.F. Bay Area
Posts: 774
Hey man, you asked for our valued opinion. we gave it to you. if you werent looking for performance why did you say cold air kit in your original post? We are just trying to steer you in the right path but ultimately its up to you what mods you do first. If you keep EMPHASIZING everything no one is gonna respect you. This is by far the best forum i've ever belonged to because there is no flaming. If you wanna flame, go to a honda forum.
like i said, nobody was giving you bad info on exhaust. its up to you how you use the info other people give you.
like i said, nobody was giving you bad info on exhaust. its up to you how you use the info other people give you.
#16
05-02-2009, 06:50 AM
Question about zzp downpipe to magnaflow cat back system
i'm looking at a zzp downpipe. It is the 3" 304 stainless bolt in with a cat. The description of this pipe says it has a 2.5" outlet flange in the stock location. My question is if i go with the Magnaflow cat back system does that match up? On gmparts direct it does'nt really say what size the system is, or i just missed that in the item description.
On a lighter note the reason i mentioned a cold air kit in my original post was so i could here the supercharger working a little better and i've read that it will possibly help with city driving gas mileage. thanks again for your valued input.
On a lighter note the reason i mentioned a cold air kit in my original post was so i could here the supercharger working a little better and i've read that it will possibly help with city driving gas mileage. thanks again for your valued input.
#17
05-03-2009, 01:55 PM
Join Date: Apr 2008
Location: S.F. Bay Area
Posts: 774
Well, i dunno about hearing the supercharger better with the cold air intake. i have that intake, and before i put a supercharger on my car i could hear it, its what gave me an engine sound. after the supercharger install, i dont really hear it, all i hear is the supercharger. as for whether the supercharger got louder i wouldnt know, i had the intake before the supercharger.
the 3" downpipe would be ok, and it would match the exhaust outlets fine. i believe the magnaflow exhaust i have from GMPP is 2.5" pipe, so it matches my 2.5" zzp downpipe. i love the sound and it flows great.
you want to try to avoid different size pipes so you can keep your exhaust flowing smoother. going from 2.5" to 3" back to 2.5" creates turbulance inside the exhuast system.
the 3" downpipe would be ok, and it would match the exhaust outlets fine. i believe the magnaflow exhaust i have from GMPP is 2.5" pipe, so it matches my 2.5" zzp downpipe. i love the sound and it flows great.
you want to try to avoid different size pipes so you can keep your exhaust flowing smoother. going from 2.5" to 3" back to 2.5" creates turbulance inside the exhuast system.
#18
05-03-2009, 11:06 PM
i'm looking at a zzp downpipe.
#19
05-04-2009, 11:35 PM
I have a zzp? 3" downpipe and the GMPP/Magnaflow cat back system in my 04 Intimidator and had to make a small adapter to make it fit properly, It seems that the downpipe is 1 1/2 " shorter and causes an interference where the first 90 degree bend would hit the body, see attached pic for the fix
A capable exhaust shop should be able to make this up for you quite easily, if needed, (2) gaskets and (2) 3 1/2" bolts & nuts did the trick, I have a small mig welder so I was able to make this myself, but should be cheap enough to have fabricated. Again I'm not sure my downpipe is a zzp so it may be a little different.
The CAI definitely makes the supercharger whine much louder, and hisses loudly on cold start up but goes away quickly
Aaron
A capable exhaust shop should be able to make this up for you quite easily, if needed, (2) gaskets and (2) 3 1/2" bolts & nuts did the trick, I have a small mig welder so I was able to make this myself, but should be cheap enough to have fabricated. Again I'm not sure my downpipe is a zzp so it may be a little different.
The CAI definitely makes the supercharger whine much louder, and hisses loudly on cold start up but goes away quickly
Aaron
Last edited by montes my python; 05-05-2009 at 12:01 AM.
#20
05-04-2009, 11:53 PM
Wouldn't it be easier to just have the downpipe cut and rewelded so you don't have to add an extra gasket (one less thing to go wrong, two less bolts to seize up)?