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R/T exhaust on a 3.5??

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4.8K views 53 replies 11 participants last post by  chris15  
#1 · (Edited)
R/T exhaust on a 3.5??and a little appreciation!!!

im just curious to see if anyone has put an rt exhaust system on there sxt 3.5 and if so how does it sound and if you have any sound clips that would be great to thanks.'
any drone?
I would also like to take this time to thank ken from 3gcustoms, fireman, toddstone and many others on this site for helping me out with everything and all of my questions!!..you guys are trully good ppl and I love this site. since ive been signed up to this site ive ordered the catch can, CAI, and will be ordering a predator hopefully this week. But with all the knowledge and experience learned from all of you guys on this site..it makes me love and appreciaste my magnum 100% more then I already do..THANKS guys and gals!!!:smilie2::smilie2:
 
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#3 ·
I got a 5.7 exhaust in the garage. If ya want to get I will sell it cheap.
 
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#5 · (Edited)
Your wish......


I would delete the resonators prior to the muffler. The sound will defiantly be deeper and more aggressive especially if ya add some Blastin' Bobs. As far as performance you would stand to gain some hp / torque but as far as numbers I'm clueless.
 
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#51 · (Edited)
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#8 ·
i have a 3.5 also the only upgreaded exhaust availabe at the time was the magnaflow for the r/t i installed it on mine i love it the install was fairly easy the mounting holes are in the body on the drivers side in the rear for all your hangers you will need to trim your rear cover on the drivers side also not hard to do
 
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#11 ·
^ umm they used to have them on the Blasting Bob site but I can't find them anymore. . . it's basically a black plastic trim piece for the exhaust cut out, they exist . . . somewhere.

Anyway, I personally think you can probably find an R/T exhaust cheaper than the BB kit or anything else, after all people who remove them to upgrade their exhaust will probably sell them for cheap to just get rid of them.

I'm not sure on the exact construction of the R/T set-up but if it is indeed a "true dual" type it should provide better performance gains than something that branches off a single muffler.
 
#15 ·
well my exhaust shop has on for free he aid id just have to say for the labour, but i definately dont want what i have now, the setup i have now is straight pipes (dual) to the rear of the car with two turbo mufflers just before the tips and WOW!! is sounds aweful and ive lost alottt of power!! so thats why im worryed so much about this
 
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#20 ·
Did you install an "x" pipe anywhere in the system or just leave the two sides completley seperate from start to finish. Not 100% if that would contribute to your power loss though.

Based off this: MagnaFlow Performance Exhaust - FQA, Frequently Asked Questions and things I have heard from other 3.5 owners with dual exhausts you shouldn't be losing power.

Anyway, someone with an R/T exhaust is bound to pitch in eventually.
 
#22 ·
well another guy was tellign me he had the same issue because of no back pressure and lost a ton of power so he had to change his setup as well...but its just really frustrating thats all, ive never worked so hard to try and fix a problem in my life because i dont want the same BS to happen again when i change it this week :S
 
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#26 ·
Hum I haven't heard of this problem until now actually. I have seen many voice their concerns about the loss of back pressure before getting a dual set-up but have only heard good things about them from those that do have them, but at the same time I have yet to see any before/after dyno results for proof. . . that is something I plan on doing this summer to put the concern to rest.

I think your problem could have been the lack of "x" pipe but if you are concerned with losing back pressure then you might want to play it safe and look into something that branches off dual after the muffler like the Blasting Bobs kit. To my understanding they should perform similar to stock but give you the dual look and better sound.
 
#23 ·
The purpose of an X-Pipe is to maintain/improve your low end torque especially when you're modifying your exhaust to a dual/quad setup from single. So it shouldn't cause you to lose HP, whoever says that is wrong. The X-Pipe helps keeps the pressure so that there's not too much freeflow on your exhaust which will cause you to lose torque at high speeds.
found this info at a bmw forum.
 
#40 ·
Chutsk10 said:
Hum I haven't heard of this problem until now actually. I have seen many voice their concerns about the loss of back pressure before getting a dual set-up but have only heard good things about them from those that do have them, but at the same time I have yet to see any before/after dyno results for proof. . . that is something I plan on doing this summer to put the concern to rest.

I think your problem could have been the lack of "x" pipe but if you are concerned with losing back pressure then you might want to play it safe and look into something that branches off dual after the muffler like the Blasting Bobs kit. To my understanding they should perform similar to stock but give you the dual look and better sound.
Click to expand...
Exactly..... The Lack of a Balance Tube of some sort(Y/X/H) on any Automotive Engine built after the Heavy Emission Standards of the Late '70's/Early '80's, will cause a drastic loss of power, and possible other long-term ill-effects(See Burnt Valves, and Etc)... Engines built nowadays need the Cushion of Pressure that a Balance Tube offers(An H pipe of improper diameter, can cause a power robbing Air Bumper Effect, so you want to make sure the Exhaust Shop that installs one has proper knowledge with them.. Any Shop that is Competent enough to do an H-Pipe Setup for a 4x4 Community, should be up for the task just fine)... :beerchug:


The only times you will see a Loss of Power after doing a Dual Conversion from a Single, is when you install an Improperly Sized System for your engine, or when a Balance Tube was deleted from the system.....

Here are the Safer More Reasonable Exhaust Sizes:
A Stock to Mildly Modded 2.7L V6 should have a True Dual System of No Larger than 2.25".... Heavily Modded/Forced Induction, anywheres from a 2.5" True Dual, to a 3" Single...

A Stock to Midly Modded 3.5L V6 should have a True Dual System of No Larger than 2.50".... Heavily Modded/Forced Induction, anywheres from a 2.75"/3" True Dual, to a 3.5" Single...

And So on & So Forth for the HEMI Crowd.... The General Safe of thumb when it comes to increasing the Size of ones Exhaust System, always stay within the realistic realm of 0.25", and 0.50" Deviation from the Stock Size Exhaust, unless you are spending big money on Heavily Modding your Engine.... Even then, Personally I would much rather stay within the Realistc Increases for one...:drive:
 
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