It's OFFICIAL!!!

[boostdesigns.com]

i would stay 9.1 compression and the t3/t4 i sell will get you right ant the 450 mark your looking for and should still have awsome throttle response and low lag becouse of the way we have them built. thanks

[hannibal]

not really a shame it was done that way for flow. the way our downpipe and exhaust is designed there is no way that you can connect my downpipe to your factory exhaust and get the same amount of flow and horespower that you can from running our exhaust system. all these componets were designed to work in conjunction with the other to make the system the best it can possible be. again this isnt a factrory turbo engine so you cant think that factory N/A configurations of things like exhaust, cams, intake manifolds, ignition systems, fuel systems, ECU's or basically anything that is setup in this way can be better than a complete revamped system that is designed with flow HP and forced induction in mind. hence the way our DP is designed. thanks

boost designs

I understand the stock exhaust is VERY poor for a turbo motor. My issue was whether your downpipe could be used with another brand of exhaust.I hope you misunderstood. IMO It doesnt make sense to design a downpipe and exhaust that cant be used separately.

[boostdesigns.com]

well did not design my equipment to be used with sr equipment and if your buying anything for these cars there designed for the sr originally. the DP and exhaust we build was designed and made to get the maximum amount of flow possible for the KA24DE-T engine and since that engine doest exist i guess i am one of the pioneers of exhaust specifically for it. if i took my dp and made it connect to the midpipe then back out to the whatever cat back i would have bottled necked the flow through the midpipe and caused higher EGT and less flow. the system i sell does none of these. it truly is one of the highest flowing setups for a ka24de-T

boost designs

[BadMojo]

I understand the stock exhaust is VERY poor for a turbo motor. My issue was whether your downpipe could be used with another brand of exhaust.I hope you misunderstood. IMO It doesnt make sense to design a downpipe and exhaust that cant be used separately.

It would be nice to be able to run the turbo with the cat, EGR, wastegate routed back in to the exhaust and BOV recirculated. Not that I'm a tree hugging dirty hippy, but it would be nice to run a car with good power that's still fairly "clean".

Still, the price on the kit is good and it probably wouldn't be hard to get a custom downpipe fabbed up to connect with a high flow cat. You can bet I wouldn't ditch a perfectly good 3" mandrel bent exhaust just to run a specific downpipe. That's crazy talk!

[hannibal]

Thanks! I gotcha now. I saw the pic on your site.BadMojo, I guess thats the best thing to do if you have to run a cat.

[AZhitman]

That's the route I will be going since I have to pass emissions annually.

[WDRacing]

PJ, I believe your missing the point of the DP question. Most of the guys already have an aftermarket exhaust. So they don't want to buy another one. I've always used RS*R exhausts and will continue to in the future. So you can see the dillema in using your DP. We all agree that stock equipment is garbage for forced induction.

WD

[Tictakman]

I dont think he is missing the point at all. PJ is in this business to make money and to help the ka24de community. If you use the dp and manifold he sells then you will be forced to use the exhaust he sells. This will help his pocket out. Now, on the other hand the exhaust he is selling is supposed to be the most free flowing which is a benefit for the ka24de community. I, myself, have his manifold and dp on and I decided to keep my apexi dual n1 which was probably a mistake bc i had to pay 300 bucks to get a cat and everything connected at a muffler shop. I think i will be buying his exhaust too though bc there isnt a cat on it from what i can remember. Ill use the one i have on now for emissions and his for daily use.

This is my view point on the situation. I may be wrong but thats the way Id be doin business.

Zak

[boostdesigns.com]

True my exhaust system may not be for everyone but they are i feel the best you can put on a ka24de-t i had them flow bench tested and i feel that you will not be able to beat my DP and exhaust combo.. but if you choose to run the system you have then it is simple a matter of having your local muffler shop make you a test pipe to connect everything up. should run around 20.00. i would rather see you run our equipment but i understand your delima although i think this is a good alternative for you out there who choose not to. thanks

boost designs

[2_Liter_Turbo]

I have a question about your exhaust etc... As of now, I only have a KA24DE, but not too long from now, I'll be going with the KA24DE(T) setup. I wanted to get exhaust before I did this however, because I want it to be there when I slap on the Turbo. Will the system you sell bolt up to the stock "DE" setup temporarily? Also how loud is your exhaust setup on both an N/A and a Turbo setup? The good thing is that, there are no emmission laws where I live, so I won't have to run a cat hehe

[AZhitman]

PJ and I were talking about his catback, and it is nearly identical to what we're building at BRM.

So there's a TON of R&D in the design, and it's a solid design.

Although we're kind of competitors in the exhaust market, I'd have NO problem recommending PJ's catback for a car with the BoostDesigns turbo kit.

And THAT is high praise, considering it takes food off my table!

[red93_240]

i think that this is the most extensive ka-t website that i have ever seen i think that i will be spending quite a bit of time and money with BD. very good site

[SoCalSilvia]

Although my knowledge is very limited on the KA-T subject, I have read that a 12:1 Vortech FMU would be way to much to run on stock injectors. I read that 8:1 is ideal. I might be going the FMU route, and wanted to know why you have the 12:1 FMU in your kit.

Thanks for your help.

[Warped]

i was asking the same ? in another thread i started

[WDRacing]

I dont think he is missing the point at all. PJ is in this business to make money and to help the ka24de community. If you use the dp and manifold he sells then you will be forced to use the exhaust he sells. This will help his pocket out. Now, on the other hand the exhaust he is selling is supposed to be the most free flowing which is a benefit for the ka24de community. I, myself, have his manifold and dp on and I decided to keep my apexi dual n1 which was probably a mistake bc i had to pay 300 bucks to get a cat and everything connected at a muffler shop. I think i will be buying his exhaust too though bc there isnt a cat on it from what i can remember. Ill use the one i have on now for emissions and his for daily use.

This is my view point on the situation. I may be wrong but thats the way Id be doin business.

Zak

I know why PJ is selling his kits the way he is. I was going to do the same thing....with exception to the exhaust. In this bussiness it's all about the money, anyone who says different is a liar. Marketing a useable kit that requires you to buy all the parts from one place isn't exactly a new idea. Ford has been doing it since the 50's. I was simply explaining the point more clearly is all. The thing that will keep bussiness coming to BoostDesigns is the service and product. His is the only kit on the market to date that I've heard no complaints about.

Me, I'll keep my exhaust. It's very cheap to simply modify the existing pipe to fit PJ's DP. I don't know who charged you 300 bucks, but they ripped you off.

WD

[Tictakman]

ya i know they did. i got a cat and a new bung put into the pipe so it makes me feel a little better. if i knew how to weld and if i had a welder id do it in a heartbeat. oh well, im always losing money somehow.

Zak

[WDRacing]

Me too brother....Mine usually ends up putting the local Hooters girls through college.

[DammitBobby]

I had a muffler shop connect the BD downpipe to my BRM exhaust which I left in the back of my trunk. The BD downpipe uses a standard 3 bolt flange that the muffler shop had in stock. He simply made me a 3 inch pipe from the downpipe to connect to the 2 1/2 BRM exhaust. Total cost was 90bucks plus reinstallation of the exhaust system.

[hannibal]

I have a question about your exhaust etc... As of now, I only have a KA24DE, but not too long from now, I'll be going with the KA24DE(T) setup. I wanted to get exhaust before I did this however, because I want it to be there when I slap on the Turbo. Will the system you sell bolt up to the stock "DE" setup temporarily? Also how loud is your exhaust setup on both an N/A and a Turbo setup? The good thing is that, there are no emmission laws where I live, so I won't have to run a cat hehe

This is the flip side of what I was saying. You cant use BD's exhaust unless you have the downpipe. You cant use the downpipe unless you have the exhaust. (You can, but some extra fabrication is required...)He wasnt joking when he said he's building products for the KA-T crowd exclusively.I did read on ka-t.org forums that you can cut the BD exhaust short, and it would line up behind the cat. Definitely not a 'temporary' solution.I assumed the exhaust was a catback like all the others. Look at the pic on the site. Its much longer than normal and it turns up at the end to meet the downpipe. Thats obviously why it flows more than any regular exhaust that retains the stock layout. BD's exhasut basically cuts the corner and avoids two sharp bends.There are two basic choices if you want to run the BD downpipe with a cat: use a catback exhaust with custom midpipe from DP to cat. Or use the BD exhaust, hack off the end, and fit a cat after the DP. RoadRace Engineering sells the 3" 3bolt flange for $8 and Ive seen 3" Catco cats for $50 shipped on Ebay.
Modified by IWannaS15 at 8:49 PM 1/7/2005

[2_Liter_Turbo]

I dont need to run a cat however (no emissions here in my town), so would it connect directly to the stock exhaust manifold or the pipe that comes off of that?

[Tictakman]

the dp that bd sells goes all the way down past the first precat(where the stock header bolts to). It stops right there after that though before the 2nd o2 sensor.

i would have opted for a pipe to connect both ends but they said they wouldnt even touch it bc there was no cat and that it was illegal.

[2_Liter_Turbo]

I think my setup is marginally different. I have an OBI 93 s13 coupe. so there is only one O2 sensor etc.

[hannibal]

Neither.The BD exhaust ONLY connects to their DP. If you use the exhaust without the DP or vice versa, you have to fabricate something to fill in the blank. I cant find the thread where I thought I read that the shortened exhaust will line up with the cat's outlet. Here's a good place to get started though.http://ka-t.org/ipw-web/bullet...=1500

Like tictakman siad, the BD exhaust/DP joint is somewhere after the stock header/midpipe joint but before the cat joint. Even if the BD exhaust ended near one of the stock joints, it still doesnt follow the same path.
Modified by IWannaS15 at 12:10 PM 1/7/2005

[2_Liter_Turbo]

Its all comming together now I guess ill just run a standard cat-back (not going to get a new name brand -waste of money-, just going to get a used or muffler shop setup) untill i get my turbo setup built, then Ill get the BD Manifold/DP combo and the catback all at once.

I do have one question for Boost Designs however. What kind of gains would I expect from your new intake manifold? Should I wait untill my DE(T) setup to get it, or would if be benificial at all for the N/A setup?

[Tictakman]

i have obd 1 too. you have a sensor in the stock header near the egr then u have another down under the car next to the transmission. i can take a pic of the bd dp in my car if you like and send it to ur email/s. let me know

Zak

[2_Liter_Turbo]

Yeah that would be great. email: [email protected] Thanks

[hannibal]

pic please![email protected]

[AZhitman]

When you guys get to that point, I can fab up a testpipe that'll work (will have to get together with PJ on that)....

[Tictakman]

hey i just sent 2 pics each, if u want more let me know.

Zak

[hannibal]

Thnaks.The design is different now. The downpipe is shorter and the exhaust is even longer. It looks like the bend in your DP (from flange to weld) is now part of the exhaust. Here's a current pic of the DP and exhaust





I think Greg's talking about making a test pipe from the end of the new DP to the front of the stock cat.Wont flow as well as the BD exhaust, but it'll be 3" from turbo back (assuming you have an 3" hi flow cat) and still be 'clean'.