I hesitate to put dual exhaust in my V6. Will the reduced back pressure be enough to keep the engine happy? I don't care about the warranty because the warranty only lasts a few years, but I'd like to get many, many years out of this engine.
I've heard many opinions, but is there anything factual out there? Maybe a poll will shed some light on this.
I told a few friends about my plans, and they both questioned me about whether there'd be enough back pressure. They aren't experts or anything, but knowledgeable enough to make me have doubts. I plan to go with the majority poll here, and would appreciate any technical comments anyone wishes to make.
it wont harm the engine, but too much lack of back pressure will reduce rwhp. many people here have good setups that have made some good gains, but the best are still from the singles. i sya go with duals because they look really good
Just putting dual exhaust on your car will hurt nothing. However, you should consider the diameter you use and go no larger than 2 1/4inch. Any larger and you will hurt the cars performance. In stock form you will lose a few HP on the low end but will more than make up for it at higher RPM.
While there is such a thing as not-enough back pressure, it does not physically damage your motor. Only the performance.
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quote:
ORIGINAL: P Zero
He could strap a rocket to his ass and beat em on foot too.
-P.
Just putting dual exhaust on your car will hurt nothing. However, you should consider the diameter you use and go no larger than 2 1/4inch. Any larger and you will hurt the cars performance. In stock form you will lose a few HP on the low end but will more than make up for it at higher RPM.
While there is such a thing as not-enough back pressure, it does not physically damage your motor. Only the performance.
Okay, my plan is to take it in and get a shop to do everything (I already have the GT takeoffs). Are you talking about all of the piping being 2 1/4, or just what is upstream from the cats (which I won't be touching)?
Also, I have one left hanger from the right side. Do I just need to go and buy one single hanger for $40 and I'm all set?
2 1/4 Inner diameter. You will lose some bottom end oomph with 2 1/2 but you'll make up for it on the top end. You should be able to use the existing hangers and just buy the additional one and be fine. I'm not certain though since I haven't seen the underside of the 05+ models though.
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quote:
ORIGINAL: P Zero
He could strap a rocket to his ass and beat em on foot too.
-P.
I lost nothing with dual's. Some say you'll loose the bottm end but when I got duals with x pipe it was harder to take off like it was more open/powerful in the bottom end. Couldn't stop the wheel from breaking loose LOL Don't worry too much about it. Its a 4.0L V6 not a 2.8LV6 or a 2.0 or 2.4 V4's. Don't get it twisted though, dual exhaust is not needed on our engines to exceed performance. Just look at screamin & fazm. They have some of the best times for our cars on these forums and they still have single exhaust. Basically its not a must have like how it is on a V8, But it will not hurt the performance of the car and it will sound better in my opinion.
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Procharger
298whp 299wtq @7 psi wintertune
301whp 300 wtq @9-10 psi summertune
JBA Exhaust (X pipe)
JBA Headers
ADC Custom Tune
Steeda Shifter
CHE LCA's, UCA
CHE K-member Brace(to be installed)
3:73's & tlok
PH Driveshaft
Can dual exhaust harm the engine?
