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Old 08-12-2011, 08:33 AM   #1 (permalink)
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Performance loss from exhaust change

I have read on here that some people got an aftermarket exhaust system and they experianced a performance loss. Does anyone know if you got a programmer , if you could make up for that loss ? I want exhaust and I want performance. I plan on getting a programmer anyway. I just wonder if you can eliminate the loss of performance with it ?
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Old 08-12-2011, 12:59 PM   #2 (permalink)
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if you go to large on the exhaust size it will take a bite out any gains you was expecting
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Old 08-12-2011, 04:29 PM   #3 (permalink)
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No can do on the programmer. No one has been able to crack Toyota's programming codes, therefore no programmer exists for our trucks. And you are correct regarding low-end loss with catbacks on these trucks. Best bet is to just swap out the muffler and keep the rest of the stock pipes. After experimenting with several systems and suffering noticeable low-end power loss, that's what I did. I have a Spintech muffler and it sounds awesome and performance is very close to stock now.
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Old 08-12-2011, 04:37 PM   #4 (permalink)
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your only going to lose low end torque, your truck will perform better in the long run imo. i used to not be able to run very well when i would do a 60 roll, after the packs i whoop ass and it accelerates better. you give a little and get more back.
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Old 08-12-2011, 07:08 PM   #5 (permalink)
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i had a noticeable loss, but when i did my anytime fogs i had disconnected the battery, and now my tq seems to be back to what it was stock...

really.

was kinda weird, i shoulda thought of doin it before but didnt wanna reset radio stations, and they reset themselves after a few key strokes and a short drive...

and i talked to unichip, they said the exhaust itself shouldn't really change the power or torque that much, guy said i was full of it, i did actually drive around monitoring fuel trim adjustments, and it was all normal...

he did say the unichip would make gains.
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Old 08-13-2011, 12:41 PM   #6 (permalink)
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Do you have a part number for the spin tech you used?

Quote:
Originally Posted by 1stYoda View Post
No can do on the programmer. No one has been able to crack Toyota's programming codes, therefore no programmer exists for our trucks. And you are correct regarding low-end loss with catbacks on these trucks. Best bet is to just swap out the muffler and keep the rest of the stock pipes. After experimenting with several systems and suffering noticeable low-end power loss, that's what I did. I have a Spintech muffler and it sounds awesome and performance is very close to stock now.
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Old 08-13-2011, 05:42 PM   #7 (permalink)
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Do you have a part number for the spin tech you used?
I don't know what part # he used for Spintech but I have the sportsman 3247xl which I think alot of people here use and are happy with. PM me if your interested and I will make you a good deal.
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Old 08-13-2011, 11:30 PM   #8 (permalink)
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I have never heard of spintech , are they new ? Whats the tone like ?
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Old 08-14-2011, 07:41 AM   #9 (permalink)
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I used a magnaflow 12588 22" muffler no loss here, feels like stock or better very snappy
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Old 08-15-2011, 05:51 PM   #10 (permalink)
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I used a magnaflow 12588 22" muffler no loss here, feels like stock or better very snappy
A muffler wont affect your performace...just sound.

Honestly, the stock catbacks that come from the factory are about as good as they get...if Toyota, GM, or Ford knew they could increase performace by changing their exhaust systems, they would have done it!

Most aftermarket catbacks are for looks and sound...any performance gains will be minimal (read unoticeable) at best. And you will lose some low end power with most aftermarket systems
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Old 08-15-2011, 08:11 PM   #11 (permalink)
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Whats the small thing at the rear of the truck from the muffler ? Is it needed ? If I were to get a spintech muffler , should I have that thing removed ?
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Old 08-15-2011, 09:21 PM   #12 (permalink)
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its a resonator... makes it quieter i guess. i left mine on.
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Old 08-15-2011, 09:28 PM   #13 (permalink)
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I have never heard of spintech , are they new ? Whats the tone like ?
Check it out here:

Toyota Tundra Exhaust System - Exhaust Systems - Trucks - Toyota - 1X850762D..Tundra true dual 2-1/4" X-Pipe & H-Pipe system - SpinTech Performance Mufflers
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Old 08-24-2011, 03:03 PM   #14 (permalink)
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I think my aFe intake and exhaust added some performance. I didn't dyno it but they claim it increases, and it passes the butt dyno. I feel it.
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Old 08-24-2011, 05:25 PM   #15 (permalink)
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Do you have a part number for the spin tech you used?
I got the regular Sportsman muffler (not the XL version that most Tundra owners have used), I think it was p/n 3247. It is dual in (2.25") and single out (3.0"). I went with it because it is slightly louder being a shorter case and less baffles than the XL version. As for sound, to me it sounds somewhat similar to the Corsa Sport I've heard clips of.
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