Donaldson part #'s?

[BApple]

Can anyone tell me the part number for the larger Donaldson muffler for a 04. 5? Looking at trying one of these out along with an aeroturbine after the downpipe. Anyone with this type of setup please post your opionions. Thanks for the help.



Brad

 

[Gypsyman]

M085171 from Airflow is what I ended up running with my stacks and all I can say is WOW! The sound is perfect and just what I was looking for. Not too loud even when towing and no more drone like I had with the DPPI system that I scrapped...

 

[sfr1047]

The M085171 is a 4 inch in and out, 40 inch by 8. 5 inch muffler. It has a noise reduction of 8-12 db.

The M090544 is also 4 inch in and out, by 51 inches by 9 inches and has a noise reduction of 13-18 db but not as good a flow rate.

I am running the M090535 which is 5 inch in and out by 51 inches by 9 inches with a noise reduction of 12-17 db but much better flow rate than the other two. I am using it on a 4 inch system.

The first one would give a little more noise than what I want to listen to when towing for long periods. The second one was very quiet but I wanted more flow so I am now using the third one. I think I will stay with it.

It all depends on personal preference concerning how much noise you want and how much flow restriction you are willing to put up with.

 

[Cattletrkr]

M085171

M090544

M090535



The first one would give a little more noise than what I want to listen to when towing for long periods. The second one was very quiet but I wanted more flow so I am now using the third one. I think I will stay with it.

It all depends on personal preference concerning how much noise you want and how much flow restriction you are willing to put up with.

Ya gotta love TDR. One 30sec search and I've got all the info I need. Thanks guys

 

[BradHansen]

Call Rip @ Source Automotive he can hook you up. I ran the M080171 on my 97 PSD and have in a box from Rip a M090781 which is 4" in 5" out 51" long 9" Dia waiting to go in. Mon 2/21 is the scheduled day for install cant wait. I was very happy with my setup on 97 PSD nice turbo spool and excellant whistle from exhaust tip. I told Rip that I wanted to run a similar 4" system but 5" to go over the axle. He came up with a Nelson resonator bcuz my cat ran away small amount of 4" pipe to the Donaldson muffler to a huge looking 5" over the axle tailpipe and 5" chrome turndown. Should flow great and he states a nice exhaust sound, probably not too much louder than stock we will see. This to go on 05 QC 4x4 Drw 6 spd.