Mark, I have been looking at your site .... specifically at your aluminized systems for the Duramax. How do these compare to others as for in-cab sound? I want a system with no drone at all .... Im not concerned about outside noise but in-cab quietness is a must. What would you recommend?

I'm not mark but I have one of his systems. It has no drone at all . I only installed it from the cat back . If you are concerned with inside sound I would only do it from the cat back. You don't even notice his system when you are at speed or towing. Has a good rumble at idle-1800 or so. http://www.dieselplace.com/forum/smileys/Clap.gif

Thanks for the reply. I was really wanting to hear from Mark ... oh-well, I just went ahead and ordered a Banks kit. I have heard nothing but good about their kit ever since they changed their muffler and got rid of the drone.

swilk,


Just as wakeboarder said no drone or anything at all from the 4 bolt flange back. If you decide to add the front pipe it will make a little more noise etc. Sorry you went to Banks we could have saved you a considerable amount of money, thanks for trying to get with us though. We haven't been as active on the site as we have moved to a larger location and the move has put us back a few days on all of our responsibilities etc.


Mark @ DPPI

Well ... I had a ton of problems getting the Banks exhaust so after ALOT of searching, I decided to get an exhaust from DPP (I got the 409 version). I love the sound at idle and under load .... there is a slight in-cab drone right at 2000RPM under load but it mostly goes away whiile cruising down the highway. Overall im happy with everything ... I did go to my local supplier and get 4" stainless bandclamps for the 3 joints to ensure a leak-free seal. At only $26 for the 3 clamps .... come on guys, include them from the factory ..... Edited by: swilk

Hey Swilk, I have been thinking about the Banks exhaust. I would be interested in what kind problems you had. I had called them with a question and they keep calling me to buy. Can you elaborate?


Thanks,


Keith

I called Banks directly to check on availability then ordered a system through one of their vendors. After waiting 2 weeks with no exhaust, I called the vendor who told me the exhaust was on back order with Banks and they did not know when to expect it. I called Banks, their customer service was not ver helpful, but they finally did tell me that the exhaust was not in stock and they did not know when it would ship. I questioned why I was told it was in stock and ready to ship prior to ordering and they could not give me a good reason. Next day I recieve a call from vendor telling me exhaust should ship this day or the next .... a few days go by so I called the vendor. Same story, Banks doesnt have any to ship so shipping is delayed again. I cancelled my order and ordered a kit from DPP. I called them on Wednesday and had their kit on Friday morning. Now, the original vendor is telling me that the Banks kit has shipped and they cannot cancel the order. I have informed UPS to deny reciept of this shipment and informed my credit card company of the situation ..... not a good experiance with the Banks company. I am sure their products are top quality, but the experiance sucked.

swilk,


Hey glad you got it installed and are enjoying it, we pride ourselves in quick service and availability. We stock a lot of product to make sure we can get it to you when you want it. If we can ever help you or any of the other members just give us a call.


Mark @ DPPI

swilk,

Did you end up installing the front pipe, or did you just go from the four-bolt flange back? Just wondering if you had to make any modifications during installation on your Ex-Cab SB. I see you have a 2002, so I presume you don't have a catalytic converter. I'm considering an exhaust from DPP just so I can eliminate the cat from my fed-emission LB7.http://www.dieselplace.com/forum/smileys/Angry.gif I still can't figure out why I have a kitty.

IS THE BANKS THE 304 OR THE 409 STAINLESS?

What are the advantages of 304 over 409 and are they worth the extra $$$? Is it just a matter of longer life or are there performance advantages as well?

I installed form the 4-bolt flange back. One pipe has to be trimmed to length depending on cab/bed configuration. It details in the instructions about how much should be cut form the pipe. On my system, only 1 of the hangers was actually welded to the pipe, the other 2 used were welded to the clamps. Like I said, I did replace the clamps used to join the pipe together with stainless steel band clamps to ensure a good seal. I have noticed a significant drop in EGT's over the straight pipe while cruising unloaded down the highway. I have not towed yet, but would expect the same kind of EGT gains while towing. I got the dual-wall stainless steel tip with my system .... very nice, as is the finish on the muffler itself. It is a very good looking system.


Also, the system Banks makes is 409 stainless.

There arent any performance gains to be had between the 304 or the 409. The 304 is a higher grade of stainless and will outlast the 409 stuff ..... but it would take several, several, several years for the 409 system to fail IMHO. The 304 is supposed to stay LOOKING better longer as well ..... would fit into a show type truck better than a regular driver.

I went with the T409 system from Mark myself. I ordered it, it showed up 2 days later on my front porch when I came home from work! Talk about fast delivery.


I put it on, and it took me quite a while to get used to the sound. It seemed droney to me. So much so, I even considered taking it back off and going back to stock for about a week or two. But now, I am quite used to the sound and I like it a lot. I don't notice the drone, perhaps it's gone. It definitely has a good sound to it especially when you get up in the 2000+ range w/ the turbo spooled up.


The original system came off easily (after dropping the carrier bearing briefly) [don't cut it off with the sawsall like the instructions say] and the new system went on in about an hour. The only problem I had was with the tip. The wimpy bolt broke right off. I had to use the extra U clamp which doesn't look the greatest, but it works.


I also decided I didn't want the tip sticking out 6" from the side of my truck so I cut off about 4" or so off the pipe before putting the tip back on with the clamp. It looks fine now, but I wish I could get something that looks better to hold the tip on rather than the exhaust U clamp. If I had it to do over again, I would have ljust left the tip in the box and never put it on. But since I cut the pipe...


Thanks,


Tim

what is mark's web site

Hey Tim





Just give the tip a quick tack weld to hold in place and get rid of the clamp. If you can find a welder with Stainless welding this would be best .If not a small weld at the top of the tip will do the trick. a small splash of silver paint over the weld will help against corroision.


MB

what is mark's web site


www.dieselperformanceparts.com (http://www.dieselperformanceparts.com)

luvthesmellofdiesel,


Hey did you get the tip taken care of?? If you need us let me know thru here or call us so we can make sure you're taken care of. Been real busy lately and haven't been tot he sites as much as usual and missed your post, sorry.


Mark @ DPPI

Check also http://www.usdieselparts.com - their prices are cheaper but the shipment costs more. Adding everything up you will still save some money.

Mark can you beat their price or at least equal it?

Mark,


No, not yet. Probably will take care of it over the 4th.


Thanks,


Tim

The Banks exhaust systems are 409 grade stainless. 409 does have some iron content in it and during the heat and cooling cycles it will actually sweat the iron out. Over time the iron will rust, but the pipe itself will never flake like what we are used to seeing here in the <st1:place>Midwest</st1:place>. The 409 will last the lifetime of the truck and never develop a hole. The 304 does not have any iron content and will look the same in a few years as it does new, except for the mud and junk you throw up on it while driving. If you had the time you could wash your 304 pipes and make them like new again.

The 409 MBRP exhaust systems are priced so right, that it does not make since to get the aluminized. To make a difference in price MBRP left the hangers off the aluminized systems and you have to purchase a clamp and hanger kit separately. The exhaust and clamp kits together are approximately $50 less than the stainless.

The Banks exhaust for a crew cab, short box, from the down pipe back MAP is $663.10. The comparable MBRP system is $604.32. These are complete systems for trucks without converters, or want to be, with a dual wall tip. Both have cat back systems available also.

Mark

mahalkita,


We GUARANTEE our pricing, just call me!


Mark @ DPPI

WI Huck,


I couldn't have said it better myself, can I copy that and use it in the future?


Mark @ DPPI

It is only the truth brother! Your systems are great, that is why we sell so many of them. http://www.dieselplace.com/forum/smileys/Clap.gif

Mark

What are the advantages of 304 over 409 and are they worth the extra $$$? Is it just a matter of longer life or are there performance advantages as well?











http://npoesslib.ipo.noaa.gov/techlib/doc147/doc147.pdf





http://users.skynet.be/sky72709/morestlst.html

Braz,


Here's a more easily understood explanation of 409 vs 304. T-409 is a very good quality magnetic stainless, it will discolor and turn brown/gray over time and get some rust spots etc. T-304 has a very high content of nickel and chromium and is NON magnetic, because of thsi it will basically be the same for as long as you and I will be around anyway. You can drive a 304 system thru a Chicago winter and in th espring wipe it down with some hot soapy water and it will look almost like it did the day it cam out of the shipping box. Call me if you need any other info.


Mark @ DPPI