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Old December 1st, 2008, 11:55 AM   #1
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Exhaust Question / Idea

Alright guys I have an idea I was pondering. When I had my camaro I had bought an electric cutout from QTP. for those of you not familiar with this google QTP Electric cutout. now I know out of the 2 exhaust manifolds comes two cats (one on each manifold). I was underneath my car doin an oil change when I thought to myself hmm.. I wonder if I cut out the (next piece im not sure if its a resonator or another cat) and wleded in an electric cutout. right were the two pipes meet. so I was wondering what you guys thought about this? I know this is very unconventional but I don't want a permanent exhaust for certain reasons so I could keep it closed for normal everyday and whenever I feel like it just open her up. let me know what you guys think.
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Old December 1st, 2008, 12:00 PM   #2
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its not like you'll see any gains by opening it up. waste of money imo especially on a na car.
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Old December 1st, 2008, 12:10 PM   #3
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you'll gain a lot of noise but will most likely lose power from lack of back pressure.

and right where the 2 pipes meet is a flex pipe.
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Old December 1st, 2008, 02:18 PM   #4
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I disagree. You will definitely get an increase in top end. Low end I'm not so sure, you may get a loss. But CL6speednupe has a 3" exhaust on his NA CL-s (3.5 motor) and gained impressive horsepower AND torque. Now, he has the P2R plenum and this may have something to do with it, how much I don't know.
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Old December 1st, 2008, 05:30 PM   #5
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you will lose torque and get a better top end. waste of money.

get a j-pipe
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Old December 1st, 2008, 06:26 PM   #6
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If you lose torque because of what some are referring to as less "back pressure" why is it that Richie's less restrictive y-pipe gains a huge amount of torque over stock??
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Old December 1st, 2008, 10:27 PM   #7
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ive been thinking about doing this for quite some time. I have ruled it out for a later thing but it would be easier for me due to the fact that i have an I4 with single exhaust, but i think this would also be so much fun to have to mess with people
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Old December 2nd, 2008, 05:57 AM   #8
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the reason i was thinking about this is because it is an electric cutout so i can open and close it with the flip of a switch from inside the car so it definitely has versatility. So, compared to a guess you'd say like a catback system, what would you guys say the pro's and con's are?

for ll you guys who may not be familiar with this: http://www.quicktimeperformance.com/QTEC/index.php
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Old December 2nd, 2008, 07:58 AM   #9
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being able to pull up to some one rev it once with it closed and then rev it again with it open haha. That would be to much fun but it will most likely gain top end performance opposed to low end. If you have cops who freak out about exhaust this might help because you could just close it when you see them and also you would be able to close it if it got annoying. Some cons are that it will most likely be really loud and semi ricer but idk for sure cause i have only seen three hondas or so with it.
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Old December 2nd, 2008, 08:57 AM   #10
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its not like you'll see any gains by opening it up. waste of money imo especially on a na car.
Quick question: What about top end power? I thought a true sleeper would benifit from this stealthy mod at a light, next to some punk or at the track. Or am I mistaken.
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Old December 2nd, 2008, 09:48 AM   #11
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Quick question: What about top end power? I thought a true sleeper would benifit from this stealthy mod at a light, next to some punk or at the track. Or am I mistaken.
An accord is a sleeper period if it's fast. people don't expect much from an accord. I know cause people try to race me everyday regardless of what type of car it is. a exhaust cut-out is not going to determine whether you win a race or not. It more likely will make you seem like a ricer with an exhaust leak than anything else. you're not going win a race you lost yesturday because you have an exhaust cutout today.
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Old December 2nd, 2008, 10:31 AM   #12
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^Gotcha, thanks. My assumption came from the muscle cars that would shift open their headers or open exhaust to race. I'm sure the person who started the thread saw the same video of SIRSIG and his cut-out and like me was interested.
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Old December 2nd, 2008, 11:51 AM   #13
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haha no I had a cutout for my ls1 camaro I had but ended up not even using it. I just thought while I was changing my oil underneath the car how it would sound and would it be worth it. im still undecided on this thus far
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Old December 2nd, 2008, 09:35 PM   #14
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if you do it post a video of it closed and open. But the my only concern would it sounding to ricerr. Still would be fun
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Old December 7th, 2008, 08:01 PM   #15
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could've sworn someone had an cutout on their accord. sounded hella lound(not really ricey but just plain loud)
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Old December 8th, 2008, 12:24 PM   #16
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hey guys thanks for all the input but I have a quick question. sorry if this is an obv answer question but im on my phone in class lol and I cnt rly use the search option too well. do they make longtube headers for our car? I know one thing I always wanted to do with my camaro was get LTs and a cutout while maintaining the stick exhaust. could anyone let me know if there are any kind of headers available for our cars and if so, a rough estimate on price .. thanks a bunch.
Matt
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Old December 8th, 2008, 01:53 PM   #17
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They don't make headers for our cars. The headers or really the exhaust exits are weldon on to the engine. follwed immidiatly by pre-catatlytic converters. Your only options are the Pro-cats which I have, better flow design and it has metal cats 300 cells vs the stock 900 cells, can't remember this off the top of my head. Its expensive $1100 and the ctas have failed on people after a few years. Or Richies pre-cat delete. he sells tubes that go from the engine to the J-pipe. Not that expensive, good quality. I would have gone this route if I wasn't in such a hurry last year.
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