The Delicate Titan Exhaust – its resistance to Mods without vibration – drone!

[AquaDios]

My expierence of "The Delicate Titan Exhaust – its resistance to Mods without vibration – drone - resonance"

2006 CC 4X4, big tow – has 4 OEM CATS – links at end of this post.
Unfortunately the url's change when I post, so you'll have to go to Club Titan - its posted in Performance Mods under The Delicate Titan Exhaust – its resistance to Mods - vibration – drone - resonance


Exhaust Grounding Straps - Value?

I started with a performance shop fabrication on the OEM system. At the 2-inch OEM Y pipe the shop fabricated a 3-inch exhaust pipe to the 3-inch Flowmaster in/out and installed a 3-inch tail pipe with exit at OEM location at right rear.

This produced a horrible combination of vibrations and drone, the worst at low RPM around 1,350 – 1,700. The vibrations came up through the floorboard and could be felt in the steering wheel, bad – bad – bad.

The performance shop cure was to replace the Flowmaster muffler. Instead I searched the Internet and found information about Exhaust Grounding Straps.

There seemed to be some logic to the EGS claims, but rather than purchase the advertised kits I simply went to Napa and bought 4 quality ground straps and installed them as directed on the EGS site. This was not snake oil, it worked, and 90 % of the drone was gone while the vibrations were reduced by about 95 %.

I drove the truck for about 2,000 miles this way while researching Titan exhaust mods at Titan Talk and Club Titan.

The conclusion I drew form this research is that the Titan has two-exhaust constriction points, the OEM CATS - Resonators and Y pipe.

The next step was replacing the 2nd set of CATS with 2-½ inch straight pipe and new bungs for the oxygen sensor. Upon start up it was obvious the Titan liked the mod with its bark. The unexpected bonus: All VIBRATION and most all exhaust drone was gone!

I purchased a Flowmaster 2 into one collector a 2-½ inch to 3 inch. The next day the OEM Y pipe was removed and the new Flomaster was fabricated with 2-½ inch pipe to the collector and 3 inch out to match the existing fabrication.

Upon startup the Titan really barked, seemed very happy with the change. The Bonus, all drone – vibration completely gone!

My opinion re: Titan exhaust mods:
The OEM exhaust has built in vibration points when the OEM system is altered – modded.

First the CATS have a built in vibrator at the internal screen designed to burn extra fuel.

Second the OEM heat shields set up a negative resonance when the exhaust is modded – made with less restriction – opened up.

Thus, the EGS likely eliminates the vibration – resonance – drone by grounding this nuisance to the frame. Keep in mind this is my opinion; I am not an automotive engineer, just an ex-street racer – hot rodder and I’ve spent 3 months researching this stuff.

Conclusion:

If you have not replaced the 2nd OEM CATS – Resonators you’re gonna have vibrations – drone – resonance, that 90 – 95% in my opinion, can be eliminated with 4 EGS correctly placed.

If you don’t want to install the EGS then replace your OEM CATS – Resonators as a First step.

If you’re not 100 % satisfied then replace the OEM Y pipe with a quality 2 into one collector. I’ve found the Flowmaster to be an excellent off the shelf item.

My experience with exhaust – see url’s for jpg’s and text – ECU reset here

The text and jpgs of the Fabricated Flowmaster system here

Search for the Y pipe 2 into 1 collector here

OEM CATS – Resonators here

This may answer some questions many have about Titan exhaust, it may not, but I’ve shared my experience; some of you may learn from this some of you may not.

In any case enjoy, have a nice day.

EDIT: For some reason the url's got modified and do not work as a result.
I'll try new urls here :

My experience with exhaust – see url’s for jpg’s and text – ECU reset here http://www.**************/modules.ph...t=3699&start=0
The text and jpgs of the Fabricated Flowmaster system here
http://www.**************/modules.ph...185&highlight=
Search for the Y pipe 2 into 1 collector here
http://www.**************/modules.ph...979&highlight=
OEM CATS – Resonators here
http://www.**************/modules.ph...145&highlight=

[Voodoo]

i think you are on to something, can anyone confirm?

cats/resos seem to be the cause of drone

thanks for info/research

[sc186]

I dont think that is it.

I have moved, replaced and re-installed my stock resonators more than 4 times and have yet to erradicate the dreaded 'drone'.

I think the best bet in reducing resonance in the 1.5-2k RPM range is to buy a muffled exhaust tip.

[titanse05]

Originally Posted by AquaDios

EDIT: For some reason the url's got modified and do not work as a result.

They don't work because TT doesn't acknowledge that other titan forums exist and that useful information posted on other sites shouldn't be linked to TT.