HKS Exhaust Choices - Which one do I go with?
There's been a lot of confusion on HKS exhausts and what the differences are in each one. Looking at the HKS USA website, it's not real clear on what the differences are. We're working on clarifying on the website, but I wanted to give an overview of the different options and exactly what the differences really are.
To begin with, there are two main categories of exhausts HKS has for the BRZ/FR-S. The Hi-Power and Legamax. Hi-Power is going to be the one that makes the most power, while Legamax is designed to be a more tolerable sound for daily driving but doesn't quite put out the same power. Let's start with Legamax. There are two types of Legamax exhausts. Legamax Sports and Legamax Premium. Legamax Sports uses a dual muffler design whereas the Legamax Premium uses a single horizontally mounted muffler. The Legamax Premium is available as a cat-back or axle-back, and the Legamax Sports is available with either single or dual tips. Legamax Sports Cat-Back (Dual Tip) Part #: 32018-AF009 MSRP: $1700 Stainless Steel Dual Tips, Dual Exit Exhaust http://www.hks-power.co.jp/product_d...09_muffler.jpg https://youtu.be/Q39_kr66OPQ Legamax Sports Cat-Back (Single Tip) Part #: 32018-AT041 MSRP: $1500 Stainless Steel Single Tips, Dual Exit Exhaust http://www.hks-power.co.jp/product_d...41_muffler.jpg https://youtu.be/2mRLIBx05R0 Legamax Premium Axle-Back Part #: 32018-AT039 MSRP: $899 Stainless Steel Single Tips, Dual Exit Exhaust http://www.hks-power.co.jp/product_d...39_muffler.jpg Legamax Premium Cat-Back Part #: 32018-AT040 MSRP: $899 Stainless Steel Single Tips, Dual Exit Exhaust http://www.hks-power.co.jp/product_d...40_muffler.jpg Moving on to the Hi-Power exhaust, there are 3 options from HKS. The Hi-Power Spec L is available with either titanium tips or carbon-wrapped tips, and the Hi-Power Racing exhaust is a single exit exhaust that will give you the most power. Hi-Power Spec L w/ Carbon-Wrapped Tips Part #: 32016-AT023 MSRP: $980 Carbon-Wrapped Single Tips, Dual Exit Exhaust http://www.hks-power.co.jp/product_d...23_muffler.jpg https://youtu.be/OfqhyWRSKSg Hi-Power Spec L w/ Titanium Tips Part # : 32016-BT001 MSRP: $980 Titanium Single Tips, Dual Exit Exhaust http://www.hks-power.co.jp/product_d...32016bt001.jpg Hi-Power Racing Part #: 32016-BT002 MSRP: $600 Titanium Single Tip, Single Exit Exhaust http://www.hks-power.co.jp/product_d...32016bt002.jpg In addition to the cat-back and axle-back exhaust systems HKS offers, we also offer 2 different header options and front pipe. 4-2-1 Exhaust Manifold (w/out cat) Part #: 33002-BT001 MSRP: $799 http://www.hks-power.co.jp/en/produc...33002bt001.jpg 4-1 UEL Exhaust Manifold (w/ cat) Part #: 33005-AF018 MSRP: $1280 http://www.hks-power.co.jp/en/produc...05af018_p2.jpg http://www.hks-power.co.jp/en/produc...05af018_p1.jpg Front Pipe (w/out cat) Part #: 33004-BT002 MSRP: $350 http://www.hks-power.co.jp/en/produc...04bt002_p1.jpg And finally, there are some combo packages available. Exhaust Manifold & Front Pipe (*with* hi-flow cat) [fits 6MT only] Part #: 33005-AT006 MSRP: $2200 http://www.hks-power.co.jp/en/produc...33005at006.jpg Hi-Power Spec L w/ Carbon tips & Exhaust Manifold & Front Pipe (w/ hi-flow cat) [fits 6MT only] Part #: 32025-AT001 MSRP: $3300 http://www.hks-power.co.jp/product_d...32016at023.jpg + http://www.hks-power.co.jp/en/produc...33005at006.jpg Legamax Sports Cat-Back & Exhaust Manifold & Front Pipe (w/ hi-flow cat) [fits 6MT only] Part #: 32025-AT002 MSRP: $3160 http://www.hks-power.co.jp/product_d...32018at041.jpg + http://www.hks-power.co.jp/en/produc...33005at006.jpg Hopefully that clears up some confusion and helps you pick the right one! |
So which of the catbacks/axle backs is the quietest?
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Actually, if you have the info available. A ranking of quietest to loudest, and lightest to heaviest would be very helpful. It has taken me weeks to research Catbacks, and I am still trying to get all the info sorted to help make a good decision. |
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Legamax Sports Cat-Back Dual Tip - 86 db Legamax Sports Cat-Back Single Tip - 88 db Hi-Power Spec L Cat-Back Carbon Tips - 90 db Legamax Premium Cat-Back or Axle-Back - 91 db Hi-Power Spec L Cat-Back Titanium Tips - 93 db Hi-Power Racing - 104 db From lightest to heaviest: Hi-Power Racing - 23 lbs Hi-Power Spec L Cat-Back Titanium Tips - 27 lbs Legamax Premium Axle-Back - 32 lbs Hi-Power Spec L Cat-Back Carbon Tips - 34 lbs Legamax Sports Cat-Back Single Tip - 50 lbs Legamax Premium Cat-Back - 51 lbs Legamax Sports Cat-Back Dual Tip - 58 lbs |
Excellent info. Thank you. This is helpful.
Interesting (thought not too surprising) that there is almost (I said, almost) a perfect inverse relationship between those two lists |
Single Hi-Power because i loved it on my SW20
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Do you have dB readings for your exhausts with your catless header and catless front pipe also installed?
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http://www.hks-power.co.jp/en/produc...04bt002_g2.png |
I just installed your HKS uncatted EL header, dual resonated front pipe, and Legamax Premium catback. Very satisfied with the results. Hoping to get it dyno tuned soon(on a OTS map currently). I don't have any current decibel recordings, but it's very manageable on the highway. :burnrubber:
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Will you be releasing a 3" exhaust anytime soon?
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You should totally be pushing your boxer spec manifold.
This video https://youtu.be/JTqoqnUGrpU?t=1m55s :burnrubber: Hubba hubba - that is one sexy note! :party0030: |
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