3" exhaust

[evilneon]

I have a 02 dodge neon sxt 2.0L and i was wanting to put a 3" catback free flow. has anyone done it yet? i was just told that it cant be done for 2 reasons 1) 3" pipe wont fit and 2) i would lose to much back pressure that my check engine light will come on and cant pass inspection. need info on this bad thanks

[evilneon]

he also told me to keep my cat. he said dodge uses the best cat. he said the high performance cat is thee same as the one i got on there now.

[turbovanman]

Too big, 2.5 inch is the biggest you should go. If you run 3 inch, you will lose all your bottom end. You can run a high flow cat, but make sure you put the rear oxygen sensor in or the SES light will come on or use a ox sensor eliminator to trick the computer.

[ecs]

Backpressure you WANT to lose, what you dont want to lose is exhaust velocity. The only thing that you will lose from going to too big of a pipe is exhaust velocity. If you maintain a 2"-2.25" pipe throughout the whole system then i'm pretty sure you will get the sound you're going after as well as the performance you're looking for.

[scorpion1]

I have a 97 Highline with stock exaust from the header back with a straight through tuner muffler. 3R RACING I believe it is. Its a nice deep tone but not exsesivly loud and a nice difference in speed and acceleration. (Its a 3spd auto)

[crazymadbastard]

Just a guess, but maybe look into getting a used srt4 exhaust- not sure of size but might work.

[4cfed]

Quote:

Originally Posted by crazymadbastard Just a guess, but maybe look into getting a used srt4 exhaust- not sure of size but might work.

hahaha you beat me to it!!! +1 on the srt-4 exhaust

[capev86]

a 2nd gen neon RT might be a viable donor vehicle too!

[82charger2.2]

I have a full srt-4 exhaust if interested.

[evilneon]

what i really want to know if the 3" pipe going to work or not

[turbovanman]

Quote:

Originally Posted by evilneon what i really want to know if the 3" pipe going to work or not

In case you missed it-

NO

[gti_7]

Quote:

Originally Posted by turbovanman In case you missed it- NO

Turbovanman and others are right.. it will be a huge was of money and you will loose all your torque... 2.25" is as big as i would go on a stock to lightly modified 2.0 motor..


bernard

[scorpion1]

I dont see the point in a 3" exaust unless you have a V8 or Turbocharger. Outside of that you usually loose HP or at least torque if you go too big.

[Ondonti]

Quote:

Originally Posted by turbovanman Too big, 2.5 inch is the biggest you should go. If you run 3 inch, you will lose all your bottom end. You can run a high flow cat, but make sure you put the rear oxygen sensor in or the SES light will come on or use a ox sensor eliminator to trick the computer.

Well 3" works great when your stock exhaust manifolding and exhaust ports suck at their job :P
with only 2.0 liters, 2.5 sounds like a good choice :P

[john1320]

Quote:

Originally Posted by Ondonti Well 3" works great when your stock exhaust manifolding and exhaust ports suck at their job :P with only 2.0 liters, 2.5 sounds like a good choice :P

^He's right.
I had a 98 R/T, trust me there is no gain to be found in the pipes on a mild setup. If you are doing more with the motor in the future, invest in a quality header with thermal coating, and drop the stock muffler for something else.

Best ET in Grand Juction, CO.- 15.7 (Stock)

Did you do your CAI? Anything is better than the "Betty Crocker" oven stock setup!