Okay Ever Since I Put That Fukin Hahn Racecraft 3inch Catback On My Car Has Been Sooooo Noticiably Slowwwwwwwwwwwwwww! What Can I Do To Fix This Crap

 

take it off, 3 inch imo way to much for a 4 banger, blown or not

 

indeed 3in is way to big

 

Well I Have To Keep It On Becuase 1 I Threw My Stock Out 2 I Got No Money And 3 It Sounds Good And I Get Complements But That Sucks Wat Can I Do To Get This Baby Up To Sspeed To Compensate For All That Lost Tourque

 

that's why i tell people all the time that 3" is too big, unless you're putting out serious power. it shifts your power band way up into the rpm range, so unless you're really on the engine very hard and in the upper rpm range it's not really helping any. alot of people think that with exhaust bigger is better. if that were the case we would all have 6" exhausts.

there's really no need for what you're looking to do to be over 2.5". you asked about what you can do to get the power back, you can get a smaller exhaust.

 

yesm hes right, unless you want to chop your car up and swap an lt1 in it, lol, 3 is just too much. no way around it, so what i would do is call hahn, you should be able to get you money back if they are a company that gives a damn about their customers.

 

ok what if i got a stage 2 and a intake would it be better?

 

not really. it probably won't do what you're looking for it to do untill you're around the 350whp and up range.

 

man we arent pulling your leg here, i dont think a supra with like 38lbs of boost needs 3 inches

 

3 inch pipe on a 4cyl is a waste of money unless its a full on nasty bad assed car! If your not pushing 350hp then 3 inch is waaaay too big and you've found out why.

 

dammittt.-

 

sorry, but atleast you know now and arent running around thinking you are making more power.

 

yea thanks everyone. i guess no more racing ppl.

 

turbo swap hha... but sorry the least amount of HP you should be pushing to have a 3" exhaust is like 300 and even thats pushing it... sell it on egay and then buy a magnaflow or something of that nature..

 

na i cant

 

well i am sure someone on here has the power to run that exhaust, see if someone will buy it

 

Jesus christ. I LOVE these guys who think 3" is too large for our cars. It's not. If you want every bit of performance you WANT a 3" downpipe and exhaust along with a header.

Will you lose low end torque? Sure... Going to S2+ will compensate for the low end torque loss and give you an amazing top end. Why does everyone complain about the low end torque loss? We're FWD.. Alittle less torque down low is a good thing when it's replaced with top end horsepower.

Edit : Guys who say going to a 3" is wrong. Post some dyno's to prove your claim's or STFU

 

Correction:

It's too big for a naturally aspirated & supercharged setup (atleast M62 setup) because the engine and exhaust still works off the basics of exhaust velocity and scavenging effects.

With a turbocharged vehicle no matter what size engine, exhaust velocity means little and getting rid of back pressure is of importance when increasing the exhaust size. Larger diameter exhaust system = less restriction = less backpressure. Ideally, you can have no exhaust system and just a open downpipe on a turbo vehicle and gain the most power.

It's not comphensating for the fact that you are shifting your powerband. You're just gaining power to make it FEEL like you are fine. Exhaust velocity still matters and plays a effect no matter what pulley you get.

 

first off if its your opinion thats fine, but dont cuss at me you little punk. and yes it is too damn big. everyone isnt saying that for no friggin reason. he just told us his car is way noticeably slower. does that sound like a small 2 lbs of tourqe difference??? anyone that knows more then basic knowledge with autos will tell you, a 3 inch system is too much for a 4 cylinder thats stock. i would even go so far as to say its too much for a 6 cylinder. if i am wrong on that then i guess flowmaster doesnt know what they are talking about, what do they know about exhaust anyway??? whats your background on cars, hmmm? how old are you? sound like your not a day older then 16 cussing at people you dont even know. is your balt your first car? and you are absolutely a moron for suggesting low end tourqe is not important. cobalts are built for low end, guess the roots style blower wasnt enough of a clue for your punk ass.

 

In some cases, 3" is actually too big on a V6...depends on what the person is looking for but you will notice a shift in your powerband.

 

How does he know it's slower? The "Butt" Dyno? Did he get it dyno'd after the exhaust? Didn't think so. It's all in his mind and until i see some dyno's of before and after's i'll stay with my 3" exhaust plan.

 

thank you, i hate when people get on here and start talking to people like that, sound like some disrespectful ass little kids

 

You might be right but sometimes a dyno isn't needed to tell when something is wrong. Just sometimes.

 

you go ahead and do that, if you would do something against good sound advice form all these people because you want to see a friggin peice of paper go right ahead child, and if someone didnt know their cars performance well enough to tell when something is wrong they should not be driving a "go fast" car

 

It's all good.