Lth + hks

nixxer · 04-24-2011, 01:14 PM

Few things there I'd like to correct and address. The FI tdx is not a full width x pipe. The mixing area is quite small, maybe .75-1" x 1.5-2". The power difference between H and X pipes is negligeable, with a x pipe edging out an h pipe in peak hp, but an h pipe edging out the x in torque. Typically, X pipes are raspier, h's deeper. As for the angles and amount of bends, they are virtually identical. Flex pipe, got me there. However so long as the inner diameter is 2.5" there should be little to no impact. Further, hks offers better ground clearance, as well as a different decel 'hiss'; It's more muffled. I didn't say I wanted to buy anything, but that I wanted to hear it.

wstar · 04-24-2011, 02:11 PM

You're right, the X-crossover isn't the full width of the pipes, that was poor wording while typing fast on my part. It flows a hell of a lot more effectively than that little H-pipe does though.

If you swap in the HKS for the FI and see gains in a fair before/after dyno, I'd be insanely surprised. I'd bet anyone that wants to try that experiment $100 you'd lose power actually. That just based on intuition and staring at pictures of the two

If they were priced similarly I'd say who cares, but given the insane markup on the HKS unit, I just can't see any reason why it would be sane for anyone to buy it

TBOX · 04-24-2011, 02:30 PM

Quote:

Originally Posted by wstar

If they were priced similarly I'd say who cares, but given the insane markup on the HKS unit, I just can't see any reason why it would be sane for anyone to buy it

Well maybe to you its not sane, however to other people who value judge an exhaust as a whole not just small HP gains it makes a lot of sense to buy the HKS.

1: The HKS has an gorgeous design
2: It doesn't hang so low that it scrapes
3: The tips are adjustable, allowing the exhaust to grow with the car as you mod it
4: It's designed by a company that has a reputation for quality for ages
5: I didnt have to wait 6-8 weeks for one
6: It doesnt sound all whiney, raspy or loud. It's quiet when you want it quiet and loud when you get on it.

I've been in the game of tuning cars long enough to know that you get what you pay for, and I'm a do it once do it right kinda guy. I make zero compramises when it comes to tuning my cars. For me the HKS gives me everything I wanted in an exhaust with no compramise.

I'm considering running the LTH on my HKS and so I'll be following this thread closely. I want to wait till the market comes up with some competitive designs first as I refuse to give someone money for a product and then wait 8 weeks for it to be given to me. It's just how I am, I'll buy one used to allievate that before I'll go that road.

Footloose301 · 04-25-2011, 08:36 AM

Quote:

Originally Posted by TBOX

Well maybe to you its not sane, however to other people who value judge an exhaust as a whole not just small HP gains it makes a lot of sense to buy the HKS.

1: The HKS has an gorgeous design
2: It doesn't hang so low that it scrapes
3: The tips are adjustable, allowing the exhaust to grow with the car as you mod it
4: It's designed by a company that has a reputation for quality for ages
5: I didnt have to wait 6-8 weeks for one
6: It doesnt sound all whiney, raspy or loud. It's quiet when you want it quiet and loud when you get on it.

I've been in the game of tuning cars long enough to know that you get what you pay for, and I'm a do it once do it right kinda guy. I make zero compramises when it comes to tuning my cars. For me the HKS gives me everything I wanted in an exhaust with no compramise.

I'm considering running the LTH on my HKS and so I'll be following this thread closely. I want to wait till the market comes up with some competitive designs first as I refuse to give someone money for a product and then wait 8 weeks for it to be given to me. It's just how I am, I'll buy one used to allievate that before I'll go that road.

My thoughts EXACTLY!

It is my opinion that the HKS looks better, it's not obnoxious, no waiting period, much better clearance, and from a forum sponsor it costs the same amount as FI. Several people here on the forum are still getting approx the same HP as the FI exhaust. 98 intrigue and a few others have gotten good results with this exhaust. I'm willing to bet the HP difference between the two is negligible. Our admin, AK, didnt see much but perhaps there was a glitch or flaw in the dyno perhaps. Several people getting 330whp with full bolt ons, using this HKS exhaust....

nixxer · 04-25-2011, 01:23 AM

Quote:

Originally Posted by wstar

You're right, the X-crossover isn't the full width of the pipes, that was poor wording while typing fast on my part. It flows a hell of a lot more effectively than that little H-pipe does though.

If you swap in the HKS for the FI and see gains in a fair before/after dyno, I'd be insanely surprised. I'd bet anyone that wants to try that experiment $100 you'd lose power actually. That just based on intuition and staring at pictures of the two

If they were priced similarly I'd say who cares, but given the insane markup on the HKS unit, I just can't see any reason why it would be sane for anyone to buy it

I agree with you here

I too would buy a used one before a new one if I were going with this exhaust. But again, I just want to hear it. Tbox, if you do get some lth, please post a video! In the meantime, unless I find someone locally with hks to swap for a week with, I suspect this thread will vanish

if I am able to swap with someone, or decide I want hks, I'll be sure to put a video here. Thanks guys.

04-24-2011, 01:14 PM	#1 (permalink)
nixxer Base Member Join Date: Jul 2009 Location: Hawaii Posts: 163 Drives: Black 370z 6MT Sp/T Rep Power: 16	Few things there I'd like to correct and address. The FI tdx is not a full width x pipe. The mixing area is quite small, maybe .75-1" x 1.5-2". The power difference between H and X pipes is negligeable, with a x pipe edging out an h pipe in peak hp, but an h pipe edging out the x in torque. Typically, X pipes are raspier, h's deeper. As for the angles and amount of bends, they are virtually identical. Flex pipe, got me there. However so long as the inner diameter is 2.5" there should be little to no impact. Further, hks offers better ground clearance, as well as a different decel 'hiss'; It's more muffled. I didn't say I wanted to buy anything, but that I wanted to hear it. __________________ FI TDX 12" \| FI LTH \| Injen CAI \| UpRev \| Tuned by AMS www.project-definition.com Last edited by nixxer; 04-24-2011 at 01:20 PM.

04-24-2011, 02:11 PM	#2 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3595	You're right, the X-crossover isn't the full width of the pipes, that was poor wording while typing fast on my part. It flows a hell of a lot more effectively than that little H-pipe does though. If you swap in the HKS for the FI and see gains in a fair before/after dyno, I'd be insanely surprised. I'd bet anyone that wants to try that experiment $100 you'd lose power actually. That just based on intuition and staring at pictures of the two If they were priced similarly I'd say who cares, but given the insane markup on the HKS unit, I just can't see any reason why it would be sane for anyone to buy it __________________ 7AT Track Car! Journal thread / Car setup details