I'm about to be installing a motor that will push the current single 2.25 (?) exhaust system past it's limits and will need a less restrictive setup and was wondering if anyone has or has seen any dual exhaust setups on TL's...or CLl's for that matter? I have a very good exhaust guy to the work but want to atleast approach him with some innovative ideas because after looking at it in the past...I always end up thinking this ----->>

 

Try you make your own true dual exhaust.. although im pretty sure it'll be raspy as hell and loud af.

 

this topic has been discussed recently. i don't know how low you are going to make this car but a true dual exhaust setup will hang a bit lower than the OEM exhaust. so keep that in mind.

or you could go with Comptech headers, hi-flow cat, and 3 inch custom cat back. or bigger if needed.

 

Hey bro, long time no speak.

That's what I really don't want is ANY raspiness. As a matter of fact, I really don't even care if it's loud at all. I currently have DC headers and a few months ago the flex joint literally broke and I had it repaired. The problem now is that the replacement flex joint and welds looks to me like it restricted the exhaust flow. Not to mention the insanely small size of the factory tubing already. I could go on forever about the flaws of this exhaust system but would rather just fix the issue instead, lmao.

As for there being other threads on this, I'll do some searching and find them. Like I said, I just need some ideas because I'm trying to figure out how I'm supposed to make any additional power with what I have. Speaking of which (I am NOT an exhaust expert) if engine speed isn't increased over factory redline, is there really a need for having larger diameter tubing? Seems to me like no matter how efficient your engine is at producing power it still releases the same amount of air. That is unless either you have increased displacement or are running some form of forced induction to where exhaust pressures dramatically increase demanding more room for airflow to exit without excessive backpressure on the motor. I'm more or less typing my thoughts and am speculating based off of reason.

 

It may be better to check in the "Performance parts and mods" sub-forum for more information on this.

How much horsepower are looking to obtain ? Don't forget about the added torque and drivetrain limitations. The exhaust can be opened up to help your engine to breath better, but as mentioned ......a true dual set-up is going to be tricky. Any good exhaust shop should be able to help you out. If you want to DIY, research some of the better aftermarket cat-back systems which are designed to replace the stock set-up.

 

Hm, I mean I'm no expert either but I feel like Nitrous would act in the same manner as FI. You are getting a sudden burst of power and you don't want any restriction.

But the thing is, you are not running nitrous all the time so the car would suffer when you're not on juice with a larger exhaust. You could run an electric cutout and just vary how much the valve is open to see at what position you get the most power. That way it would be quiet on the way to the track, and then roar to life when you're there. Just an idea

 

1foxbody- not true dual but a pretty sweet setup, post 279
https://acurazine.com/forums/showthr...=814638&page=7
Fsttyms1- still not true dual but another crafty exhaust, post 440
https://acurazine.com/forums/showthr...636644&page=11

 

On civicdrivr 3.6 build he had to go to a 3" exhaust because his 2.5" exhaust was to restrictive. He has over 300whp as well

 

Why? Mine is just about a true dual and as soon as the new motor goes in it will be true. Its neither loud as f or raspy.

 

My 3.2 saw noticeable gains with my setup. Our engines like to breath. Im expecting more when i go true dual and get rid of the Y pipe with its tight U bend.

 

^ did you lose any low end torque? i lost a noticeable amount with my 3 inch mid pipe. how did you get it back?

i have headers on the way but i don't think that is going to help with the low end.

 

That U-bend is rediculously comical.

Anytime you reduce exhaust backpressure, you affect engine torque. You can easily change the motors powerband by changing intake/exhaust design and function. This of course should be done in accordance to its application and use.

 

Yeah I was hoping there was another way to get more low end torque besides going FI. On the other hand, I love the increased power up top.

 

Wow.. that CL exhaust is so nice.

This is how i want my exhaust.. tucked up very high and not hanging like mines currently is.


Not even gonna talk about the welds.. art right here.

 

I done understand why you all want low end torque. If we all know that we have traction issues then why would you want more torque? When your running the car hard your staying in the upper end of the rpm range in vtech. So isn't the top end power what we should all be worried about? Instead of the 3500 and below power.

 

i need to restore some low end so i don't have to mash the pedal just to maintain 75 mph on the highway on a slight incline.

 

^ okay maybe i'm exaggerating a little bit about having to mash the pedal on the highway, but I still need some more torque for the highway and around town.

 

Once you get those headers the highway won't be a problem at all. Even on my tl p highway cruising is much better and now I only have to drop down maybe one gear if that to pass somebody. Before I had to put the pedal to the floor and it was still took a little while.

 

YES, there is a lot of time, money, and work that went into that exhaust. His whole build is amazing, he's been able to squeeze some where around 280+ hp out of a j32a2 with mostly just bolt ons. He also had a 4" intake thats amazing as well.

 

Nothing to complain about or that I notice.