I was just wondering if how big the s pipe is i just wanted to know if it goes from the header to the axle back or what. also i wanted to know if it is just straight pipe or if it has a resonator, cat, or both. sorry if this has already been asked i didnt see it thanks

 

The s-pipe literally replaces the stock s-pipe. The s-pipe is the piping that sits between the header and the start of the mid-section, right before the second cat. It has two bends in it that give it a “S” shape. It should be around 2.5" in diameter, I’m not sure about the length. It's been reported that the stock s-pipe is not consistent in size, and squeezes down to less than 2" in certain areas because of the bends. It is only a piece of pipe, with an inlet for the heated oxygen sensor (just like the stock s-pipe). No cat or anything else like that. If you want to completely redo your exhaust, the s-pipe is a crucial component, as it bridges the exhaust and the header. IMO, it should not be purchased by itself, that would be a waste of money. I would not buy this for a stock header and exhaust setup. I would buy this only with a full exhaust system (s-pipe back, with deleted or high flow cat), and especially with an aftermarket header.

 

The above description is very accurate. Our Spipe is 2.5" mandrel bent piping. As stated above this replaces the "catback" system to the header. The
S-pipe crimps down below 2" as it goes under the oil pan. This is a crucial bend in the design of the system as you do not want it to heat the oil.

If you have any other questions please feel free to shoot as an email or a pm

tech@thescionstore.com

-zpi

 

So it wouldn't be wise to purchase it alone? I have the TRD axleback.... will there be any gains? Any negatives?

 

My question is where the hell is it, I ordered and was charged June 8th....


I know you guys are hooking us up with a new version 2 but damn after 20 days gimmie a tracking number or a pic or something.

*edit this is a hard transition for me to go from avid computer geek to car guy, I'm used to newegg.com getting parts to me in less than 3 days with ground shipping, *sigh*

 

I would say definitely not. You'll no longer have quite a bottle neck from the stock exhaust manifold to the stock exhaust piping, but every other component of the exhaust system would still be choked up.

I doubt there were even any gains with the TRD axleback (no offense). I think the consensus is 1 - 2 hp for the TRD exhaust? Regardless, with the s-pipe you would probably show very similar gains to a car with a stock setup. Which, should be around 2 - 4 hp. If you're looking for power my friend, you'll need to replace everything starting with the header on back to squeeze the most out of the exhaust you can. At a minimum, a catback exhaust, header, an the s-pipe. But, if I’m not mistaken,with the way the exhaust piping on the tC is setup, to install a true cat back, you’ll have to do some cutting right after the second cat. Otherwise, there isn’t another flange until the axle section, at the end of the mid-section. A full header back system would be easier.

 

why would design a "performance upgrade" part to bottle neck??? Oil is going to get heated by the engine. If your so worried about this header wrap works well. How can manufactures such as honda, mitsu, nissan have run exhaust pipes under thier oil pans and never had problems and how people have upgraded to large unshielded sized pipes and never cooked thier oil. I really think that something that "crimps" down like that is a waste of money

 

I feel ya man i use to be a pretty big Comp geek always on Newegg.com looking for cool board to hook into my box.

 

i think he's saying the stock pipe crimps, and the zpi one does not