Drivetrain Miltek header and cat-back went on today
Miltek header and cat-back went on today
Hector at RSpeed finished up at about 6:30. I have to tell you my initial impression is Holy S%&t. It feels like I have 20 more horses. I know that is not possible but the boost gauge has gone from 14 to 16 lb and it gets to 16 lbs VERY FAST. The car is "butt dyno" much quicker. I think that the extra breathing has let the TB, Unichip, and Pulley do their thing much better and even the jerkyness while not gone is significantly reduced and now instead of coming on at 3K does not start until 3.5K and is less severe. (English teachers please excuse that last sentence) So, I am very happy. The car is louder. There is no doubt about it. The exhaust almost totally drowns out the supercharger whine. (I like the supercharger whine). I think as a daily driver this could be objectionable for some but I just sold my Tahoe and put down money on a IS 300 Sport Cross which will see most of my work day miles. (Bilstein PSS9s went on as well...posted in suspension forum) I have to get used to the new power.
Originally Posted by Thameth
Does it drone at highway speed at all?
Loud can be good as long as its not deafening.... hehe.
Loud can be good as long as its not deafening.... hehe.
I should have brought my camera while it was on the lift. It will be going in for some tweaks, I'lll try to remember then.
Thanks for the interest,
Bob
Thanks for the interest,
Bob
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hey spiderx, if you don't mind, what did you have to pop for this set up? did you use the oem catalytic? is the milltek header street legal, and does it continue to provide the computer with info? thanks in advance for replies. Jock
Originally Posted by holdenontoit
hey spiderx, if you don't mind, what did you have to pop for this set up? did you use the oem catalytic? is the milltek header street legal, and does it continue to provide the computer with info? thanks in advance for replies. Jock
Tuning the Bilsteins is my big concern right now. They are so versitale that you can make things worse rather than better. the beauty of the HSports and Konis is you get what you get. there is some adjustment but no where near what the range of the Bilsteins offer. I'm going to drive the car for a week and let it settle then get serious about tuning it. I appreciate the tips I have gotten so far on the Suspension forum.
Congrats.
Not to highjack your thread, but is anybody running the Milltek header and cat back with the JCW package. I have talked to Steve at Steves Auto Clinic and he says the Milltek is the way to go, compared to the JCW exhaust. I am leaning that way but does anybody have any experience with this set up?
Originally Posted by mini d
Not to highjack your thread, but is anybody running the Milltek header and cat back with the JCW package. I have talked to Steve at Steves Auto Clinic and he says the Milltek is the way to go, compared to the JCW exhaust. I am leaning that way but does anybody have any experience with this set up?
Originally Posted by mini d
Not to highjack your thread, but is anybody running the Milltek header and cat back with the JCW package. I have talked to Steve at Steves Auto Clinic and he says the Milltek is the way to go, compared to the JCW exhaust. I am leaning that way but does anybody have any experience with this set up?
Originally Posted by SpiderX
It seems to settle down at highway speed but it is louder. It is considerably louder while accelerating. I am in the audio biz and I have an SPL meter. I'll take some readings. I have no baseline from stock or the Borla street I just took off.

So the Millteks louder front and back? I've been looking at a header a while but was just going to mate it up to my Scorpion Exhaust.....
The whole thing...
Originally Posted by miniaq
Dave has it on his car, you might want to ask him. I checked into getting it put on my works car but it doesn't seem to get you much hp for the buck.
Originally Posted by mini d
Or just the header? I thought I saw that his car had the JCW exhaust tips?

Originally Posted by kenchan
hummmmmmmmmmmmmm... said the kenchan (looking at his budget for a milltek header next year)... 

I highly recommend the header and cat-back.
Originally Posted by SpiderX
I just took off a Borla street and put on a Miltek header and cat-back and all hell has broken loose with my engine. The car screams. It is as impactful as the 15%pulley, CAI and original Borla. I have told this to Randy and he is surprised. the only thing I can figure is that the new exhaust is allowing all the other mods to maximize. Before header 178 at the wheels. Whe I get back to town on the 10th I will Dyno it again and see what reality is.
I highly recommend the header and cat-back.
I highly recommend the header and cat-back.
Originally Posted by dgszweda1
I will say at the wheel the power increase will be a maximum of 7hp. Noise has a big psychological affect on perceived performance. I doubt the Miltek head and cat-back will give you 15hp/15lbs of torque, which is just what the pulley gives you. Besides the Miltek is only a few more hp than the Borla Street according to everyone's dynos.
Originally Posted by SpiderX
you may be right and I will report the new dyno when I get it done but this extra 7 may be just enough to put the car over the edge (for me) and feel like I wanted it to all along
Originally Posted by SpiderX
I just took off a Borla street and put on a Miltek header and cat-back and all hell has broken loose with my engine. The car screams. It is as impactful as the 15%pulley, CAI and original Borla. I have told this to Randy and he is surprised. the only thing I can figure is that the new exhaust is allowing all the other mods to maximize. Before header 178 at the wheels. Whe I get back to town on the 10th I will Dyno it again and see what reality is.
I highly recommend the header and cat-back.
I highly recommend the header and cat-back.
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