"ah i see well I'm thinking of getting a custom downpipe" - You do not have a down pipe and will not have one unless you turbo your car. A down pipe is a means of routing the exhaust gasses in a turbo system to your mid pipe/s pipe.

There are 4 basic components to our exhaust system.

1. Header (NOT PLURAL)
2. S Pipe (This is a pipe that connects your mid pipe to your header)
3. Mid Pipe (This pipe consist of a Catalytic Converter for emissions and it connects your S Pipe and your Axle Back section.
4. Axle Back Muffler/Exhaust (Connects to your mid pipe and muffles the sound of the exhaust system).

If you are using a small turbo system you should be fine. Many people will argue the point at which you should starting using a larger diameter exhaust system and basically you're not one to be needed worrying about this unless you start hitting 1 bar/roughly 14 psi or better. There are several reasons for alleviating back pressure on a turbo system which you need not worry about with at this time, until you start considering FI. From all the cars built by me and around me I can tell you that the best thing to do is pick an ultimate goal and start building for it now. You will waste alot of money going through stages and buying bigger more adequate parts to satisfy your cars needs. If you pick a goal of a certain horsepower and aspiration you can start equiping your car for those specific needs and save yourself alot of time, money, and headaches down the road.

The HKS axle back is something anyone with a jack and some sockets/wrenches can do. Exhaust fitment is dependant on the situation/car/part. Exhaust parts don't always fit right and require tweaking the hangers and sometimes engineering new hangers to accomidate. My HKS bolted up just fine to the stock mid pipe and that was that, but it may not be the same experience for you. My experience would say that HKS makes a super high quality part no matter what it is and you won't find much quality discrepancy with their parts, but again it's just one of those things.

 

 

well i am thinking of getting FI for the car but thats maybe 2-4 years down the line simply because i just dont have the money for it. My goal for the car is go up to 300whp give or take a few. So i can assume that this exhaust should be fine for the turbo right?

And as for fitment, correct me if im wrong but there shouldn't be any difference between ur exhaust fitness for ur tC to mine i presume simply because the models all primarily have the same exhaust setup only difference in the 07 is the intake?

 

it's all the same as far as how they fit holmes. Personally i'd go with another catback system and ditch the axle back thoughts for now. Save your duckets and get a good system if you plan on going FI in the future. 2.5" piping will work for FI up to 300whp but personally i'd go with a 3" system to eliminate any back pressure issues in the future.

 

at first i wasn't going to get an exhaust at all but after i heard this exhaust it was like @_@ i have to get it lol. thats why i didn't choose to get a catback system instead, although i have seen some sick catbacks just not my style tho.

Quick question about the HKS hi-powered exhaust, i heard it gets so hot sometimes that it'll melt/burn the bumper sometimes if it gets too close? is this true? am i going to have to get a hanger extension? if so how much do you think it'll be and where i could get one? thanks

 

lol that sound is going to change drastically and without alot of resonation with a header or some slight resonation with a turbo application you won't maintain that sound at all, it will sound like a 2 stroke boat motor out of water after a little while... Either way if thats the exhaust your shooting for by all means get it, i love mine.

Basically like I said in the previous post, exhaust don't always fit perfectly and if the exhaust in physically touching the bumper it will disfigure or discolor it. This will be amplified with the application of a turbo because of the increase in exhaust gases and heat. Unless something is severly flawed you shouldn't need any additional parts to mount your HKS properly, but you may want to tweak your hangers a bit if it's not up to your standards.

 

i just want to make sure my bumper stays intact lol xD but if you guys say its ok then ill take your word for it =D. You guys would know better than anyone about these since you guys have it =). Thanks for the info

 

get the hksi ti hi

looks 10 times better than the high power. and less heat plus bigger tip. loosk awesome!

 

Can i get a pic of what your talkin about, cause the only one i know about is the carbon ti and i dont think thats even legal in most states lol. And isn't it a turbo exhaust? it'll just take away gain for me until i get the turbo kit T.T

 

an axle back exhaust is not going to make enough difference to where you can feel it, I don't care who says you can, you can't feel 2-3 hp gains. (that is how much you'll get at the MOST with an axle back). People are crazy and like to justify that their 400$ axle back is doing something performance wise for their car, when really... They're just crazy. Buy whichever HKS you find visually and acoustically appealing, dont' worry about the "gains".

 

^^lol 400k axle back.. my custom cat back was 500... with hks muffler and magnaflow resonator

 

btw if u guys have headers then try to get two resonator.. because this biga$$ 22inch magnaflow doesnt to too much.. i mean.. my exhaust is farting like a honda (((((

the other thing is i would like to try to put a resonator and a glasspack on the midpipe.. because my ex-exhaust system had much deeper sound.

 

I have an HKS axle back that i am willing to part with. Havent even had it for a year, and is in great condition other than just normal wear from driving. It has has been scraped twice backing out of my driveway just barely, nothing you can notice at all, it took me a long time to notice that it was scraped and you have to the car up on a lift to see it. Other than that, no damage at all, i like the exhaust but i just want a different one. If interested just send me a PM, im asking 250 shipped.

 

Well thanks for all the info guys, I'm probably going to get the axle-back because i dunno where i can find a place to have to custom made and put together, atleast if i buy this portion i can still atleast have my friend help me put it on.

Thanks again guys.

 

ya, man fitment was great on mine, it took like 30 min. to put on. The route I am going to go is aftermarket midpipe (don't know which brand yet) and an invidia s-pipe. I like the idea of bein able to put my stock exhaust back on...

 

yeh that is a good idea to be able to put ur stock exhaust back just incase if anything happens to the hks exhaust =O god forbid lol

 

Please, let me know if this really works well with the resonator and a glasspack, I dunno what a glasspack do but hopefully keep the rasp away and make loud deep sounds with good HP gain.

 

glasspack makes the sound more deeped. i didnt see any setup like that.. i mean.. resonator and glasspack together.
but my stock system with ebay muffler was MUCh deeper and louder than this HKS. btw i have headers so .. even with 22 inch of magnaflow resonator its raspy from the first day.

 

One last thing, i just bought my HKS exhaust, i just wanted to confirm if i need a extra hanger or so, so the exhaust doesnt touch the bumper and melt it? Thanks

 

exhaust doesn't touch the bumper
u don't need extra hanger
u'll love the sound