JDL Header & Exhaust System Development

[nelsmar]

Originally Posted by GH05T

Will you make a UEL Header compatible with your twin scroll turbo kit anytime in the near future?

This really isn't a common thing being done on most platforms and I don't really seeing it that often from many companies in the future. F20club more so made a "pipe" to adapt his turbo manifold to work as a header and most of his benefits were from the removal of the car as he told me in person when he flew in for a dyno day.

This is similar to how a lot of v1 turbo kits from companies were using oem header. And at this point very few are doing this.

If your considering turbo I recommend just buying a turbo kit. If you aren't sure it am sure resale of an UEL probably isn't too bad considering the popular desire for UEL noise and the horsepower gains shown in a number of third party tests.

[FR-S Matt]

JDL's twin scroll kit is the one turbo option I'm looking at. I just can't even come close to affording it right now, lol. Going for the 350whp goal. Hopefully twin scroll isn't too overkill.

Right now I just enjoy my JDL UEL and the power and sound it delivers. It's worth the wait guys, just do it and be patient!

[nelsmar]

Originally Posted by FR-S Matt

JDL's twin scroll kit is the one turbo option I'm looking at. I just can't even come close to affording it right now, lol. Going for the 350whp goal. Hopefully twin scroll isn't too overkill.

Right now I just enjoy my JDL UEL and the power and sound it delivers. It's worth the wait guys, just do it and be patient!

If you only want 350... Likely not worth the extra. I'm going to have JDL build me an EL single scroll. And big turbo is a waste for only 350. I'm doing a bully forged engine and only using a gtx3067r.

[FR-S Matt]

Originally Posted by nelsmar

If you only want 350... Likely not worth the extra. I'm going to have JDL build me an EL single scroll. And big turbo is a waste for only 350. I'm doing a bully forged engine and only using a gtx3067r.

That's what I figured. I won't use a very large turbo. I guess with the right tuning I can have the lag reduced as much as possible. I don't mind a little spool time though. I just don't want a really high HP build since its a DD.

[nelsmar]

Originally Posted by FR-S Matt

That's what I figured. I won't use a very large turbo. I guess with the right tuning I can have the lag reduced as much as possible. I don't mind a little spool time though. I just don't want a really high HP build since its a DD.

I'm spending as much money as I can for the absolute fastest spool possible and I'm not using a twin scroll. Hopefully that gives you some perspective. I had a number of friends who build turbo kits for a living say that at my turbo desired size the twin scroll benefit is debatable. Gtx2867 is superb on this car for spool but egt will be higher. A 3067 may be desired if you are on pump gas for 350whp.

[Yobiwan]

I just placed order for JDL UEL header. OMG !!
I will running JDL header with Perrin resonated CBE only. ( stock over & front )

So excited !!!

[F1fletch]

After reading pretty much this entire thread (as well as the open tablet header), it seems to me that a true quality UEL like JDL is the way to go for REAL HP both on top and at the torque dip. As for myself I am thinking about pairing this with a Perrin Resonated (or not) Catback and leaving everything else intact. I am wondering what this combo would sound like and what the gains would be. I don't want any drone or raspiness.

PS - What is the status of your dual catback, do you think we will see this by summer?

[IAmNotTheDriftKing]

Originally Posted by F1fletch

After reading pretty much this entire thread (as well as the open tablet header), it seems to me that a true quality UEL like JDL is the way to go for REAL HP both on top and at the torque dip. As for myself I am thinking about pairing this with a Perrin Resonated (or not) Catback and leaving everything else intact. I am wondering what this combo would sound like and what the gains would be. I don't want any drone or raspiness.

PS - What is the status of your dual catback, do you think we will see this by summer?

I have a perrin catback, plus a motiv op+frontpipe with these headers and I can say it is perfect! It doesn't drone but it is fairly loud but nothing headache inducing. You will love it!

[the new guy]

Just saw their twin scroll on the website

http://jdlautodesign.net/shop/ft86-t...oll-turbo-kit/

[FR-S Matt]

Originally Posted by F1fletch

After reading pretty much this entire thread (as well as the open tablet header), it seems to me that a true quality UEL like JDL is the way to go for REAL HP both on top and at the torque dip. As for myself I am thinking about pairing this with a Perrin Resonated (or not) Catback and leaving everything else intact. I am wondering what this combo would sound like and what the gains would be. I don't want any drone or raspiness.

PS - What is the status of your dual catback, do you think we will see this by summer?

I'm a catback fiend. If JDL comes out with a great sounding catback paired with their front pipe catted for the UEL header, I may be VERY tempted. I change exhausts like people change oil, lol.

[xDanger_208x]

Originally Posted by FR-S Matt

I'm a catback fiend. If JDL comes out with a great sounding catback paired with their front pipe catted for the UEL header, I may be VERY tempted. I change exhausts like people change oil, lol.

I'd do the same. Judging by the quality of their current exhaust components, I'd sell my Tomei without hesitation.

[Jesse@JDLAutodesign]

I'm still up in the air on a to produce a production cat back. I have all the materials here to build a 3" titanium for my personal car and the materials alone were almost as much as wholesale on the Tomei (which i think is a VERY nice piece that i would put on my car without hesitation.) Even with a stainless steel exhaust i'm not sure what price point we could hit, I admit i haven't looked into really hard yet as we've been too focused with the headers. Now that we are close to caught up and bringing in another welder next week it should free up some time for me to pursue these things.

[xDanger_208x]

I do love my Tomei 60s

[FR-S Matt]

Originally Posted by Jesse@JDLAutodesign

I'm still up in the air on a to produce a production cat back. I have all the materials here to build a 3" titanium for my personal car and the materials alone were almost as much as wholesale on the Tomei (which i think is a VERY nice piece that i would put on my car without hesitation.) Even with a stainless steel exhaust i'm not sure what price point we could hit, I admit i haven't looked into really hard yet as we've been too focused with the headers. Now that we are close to caught up and bringing in another welder next week it should free up some time for me to pursue these things.

Something NOT with a dual canister design seems like the way to go. Less drone, optional resonator, no resonator. Keeps the aero effect of the stock muffler. Lots of positives. Getting the sound just right is the difficult task. Loud enough, but not too loud and raspy, but also not quiet like stock. You'll get people running it with a stock header and also your catless UEL so the sound is going to drastically change.

Oh, and keeping the dual tips! All these single exhausts look silly on a rear with two outlets. I think you guys could make an awesome looking exhaust with good tips and a good beefy muffler on the back sound amazing with the UEL header, and front pipe with a cat.