Doing some research on how to go about a custom exhaust. I don't feel like dropping about $800 for a catback is worth it. I was thinking of hunting down a couple of the comptech mufflers (nothing generic) and getting a muffler shop to do 3 inch piping with mandrel bends. I'm considering getting a test pipe and O2 sim I just need to do more research on how that would work. Another member had changed the cat and supposedley got better gains than a CAI so removing it all together should be better. So what else would I need to know about this before I go to my local muffler shop and get the work done? Also does anyone have any advice opinions. 1 last question how does the O2 sim work? All input is appreciated

 

Well getting mandrel bent exhaust piping is very hard to come by. If you do, you'll end up paying an exhaust shop around $350-400 to do mandrel bends.

Most shops just do crush bent piping. The labor alone will probably end up being around $150.

 

Actually, it's not as hard as you think. A friend of mine had a custom mandrel bent exhaust made for his Tiburon and it only cost him $300 total, including labor. You just need to find the right shop to get it done at.

 

i have a custom catback on my tsx, ive got 2.5 piping from cat back took out both resinators, and put 2 40 series flowmasters on and came out at 240 for everything and i can honestly say i actually gained from taking the resinators out.

 

i haven't seen any shop around here that does mandrel bending.

most of them just bend it and you get a dink where the bend forms

and 3 inch pipe is enormous. i hope you plan to run forced induction through it b/c your bottom end is gonna suck ass, especially if you have an AT.

 

Forgot to mention that. You should never exceed 2.5 inch piping on an NA motor.

 

Have any clips of the sound? I would be interested in hearing this as I might consider a custom exhaust if the sound is right. The TSX does need a little throatier note in the exhaust.

 

Here are pics of the most elaborate custom TRUE DUAL exhaust I've seen so far.

 

Nice bends on the pipes but the welding kind of sucks...

 

Dual exhuast doesnt work on our car very well due to I4 motor. The pic above is a accord V-6. V style motor are better suited for dual exhuast.

 

yeah, we need a good single exhaust system for max performance but less looks

 

Well scratch the 3 inch and go 2.5...well nitehawktsx67 how do those 40 series flowmasters sound....I'm thinking of goin no resonators and removing the cat...so does anyone know how that test pipe would work and the O2 sim...I would really like to get this done closer to the end of july...after I get my headers...trying to finish up all bolt-ons

 

to be honest, i cant tell much difference between mine and the greddy 2 i think it sounds reall good for what it cost

 

o and no i dont have clips as much as i want yall to hear it becuase i dont have anyway to get the file to the computer or i dont have a good sounding mic, just the one on the cam