[MKIV_Aspirant]

Okay... I've rummaged through the old exhaust threads and know there are many good options. I am looking for a 4 inch (105mm) diameter cat-back system and I want it to be made from titanium.

Now, having said that... I can live with an all Ti system that is slightly smaller in diameter, and I can live with a 4" system that is not Ti. I've collected all the exhausts I could find in one or both categories and wanted to see what eveyone else thought. I autoX and road race, so the weight savings of Ti is extremely appealing (not to mention the resistance to corrosion). I plan to go single eventually so a larger diameter has obvious benefits.

Something interesting is the new Magnaflow Ti exhaust for the MkIV and the email I got from Blitz. I asked Blitz-NA if they plan to offer a 4" exhaust in stainless or Ti. They said they sell it in Japan and may start selling in the US this summer. They did not give any other details, but I've always been a fan of the Blitz Nur-Spec, so I consider this great news. Also, HPF, BL and WOTM are taking on the big guns (HKS, Greddy, etc.) with very nice systems (just look at Peter's amazing 98!). If I forgot any brands, it was unintentional.

Here they are, thoughts? Thanks,
Kev

4” Exhausts:

HPF Goliath (105mm) (stainless steel) http://horsepowerfreaks.horsepowerf...orsepowerFreaks~Exhaust~Exhaust_Systems~.html

WOTM (105mm) (stainless steel) http://www.wotm.com/wo4instcamks.html

Boost Logic (150mm) (stainless steel) http://www.boostlogic.com

HKS Hiper Ti (105mm) (Ti muffler can only – stainless steel) http://www.mvpmotorsports.com/Templates/frmTemplateH.asp?SubFolderID=205&SearchYN=N

Top Secret Ti (90mm) (full Ti – almost $2k) http://www.suprastore.com/topsectitexs.html

3”+ Exhausts:

Veilside Ti (90mm) (full Ti) http://www.mvpmotorsports.com/Templates/frmTemplateH.asp?SubFolderID=205&SearchYN=N

Greddy Ti (80mm) (full Ti) http://www.mvpmotorsports.com/Templates/frmTemplateH.asp?SubFolderID=205&SearchYN=N

Tanabe Ultra Medalion (90mm) (Ti muffler can only – stainless steel) http://store.racinglab.com/to93sujtaulm.html

New Possibilities:

Blitz Titanium (unkown diameter & construction at this time) http://www.blitz-na.com/Blitz_Ex_Spec_R.htm

Magnaflow Titanium (unk diameter) http://www.suprastore.com/matiextosu19.html

 

[Guest]

Best bang for the buck is the full 4" V-band exhaust (HKS Ti clone) from ExhaustDepot.net

PM Hector (MightyMouse) and he'll hook you up.

I snatched the early production prototype for $500 shipped (thanks Hec!) All SS and exact same dimensions as HKS Ti.

 

[Xenon Supra]

I haven't heard or seen a few of those exhausts in person, but I've the one's I've seen I vote HKS Ti :bigok:

 

[onelove]

I've got the Greddy EVO II Japanese version on my car 3.5" all the way back mounted to a 3.5" v-band on the downpipe. So far no complaints and it sounds great. I'll have to double check the price but I believe it was about 800 retail.

 

[BSWhelchel]

How about the best of both worlds? 4" AND Titanium. Contact Steve Theodore about the Ti-Speed exhaust. Clone of the 4" HKS Ti, but full titanium tubing and canister. Weighs under 11 lbs. Should cost no more than a regular HKS Ti.

- Brad

 

[mr2jzgte]

I say the HPF Goliath with its 105mm piping. Reason is they actually measured the inside diameter which is what counts. The great HKS Ti is 3.500" while this Goliath is 3.875"!!! I don't know any of the other inner diameters (ID).
That's why here, I vote for the HPF Goliath.

 

[Mark Conte]

Best bang for the buck is the full 4" V-band exhaust (HKS Ti clone) from ExhaustDepot.net

PM Hector (MightyMouse) and he'll hook you up.

I snatched the early production prototype for $500 shipped (thanks Hec!) All SS and exact same dimensions as HKS Ti.

Good choice my friend, I have one sitting 10 feet from me. We are trying to work out final pricing right now on it.


EDIT: If anyone else is looking for one of these before 'official release' PM/E-mail me ([email protected]) and I'll try to help you out.

 

[KenHenderson]

Remember this? http://www.to4r.com/special.php?id=1 After April 29th, polls, opinions and conjecture will be replaced by results. Stay tuned.

Ken.

 

[Mark Conte]

I say the HPF Goliath with its 105mm piping. Reason is they actually measured the inside diameter which is what counts. The great HKS Ti is 3.500" while this Goliath is 3.875"!!! I don't know any of the other inner diameters (ID).
That's why here, I vote for the HPF Goliath.

BTW, the exhaust I'm talking about...

The ID at the outlet of the pipe (going into the muffler) is ~99mm, the only place that it's really any smaller is at the v-band flange itself...but the ID of the V-Band itself is pretty universal. (about 92mm)

 

[braddman]

Easy choice for me, Veilside. When I heard it on Ken Hendersons car at the San Diego meet I knew that's the one I wanted. It sounded better than every other exhaust at that meet. I think he's definitely switched now but still, 8 pounds you can't go wrong there.

 

[kale]

How about the best of both worlds? 4" AND Titanium. Contact Steve Theodore about the Ti-Speed exhaust. Clone of the 4" HKS Ti, but full titanium tubing and canister. Weighs under 11 lbs. Should cost no more than a regular HKS Ti.

Best sounding 4" exhaust I have heard in person!

 

[Xenon Supra]

KEN YOUR NEW SIGNATURE IS KILLING ME MAN!!!!!

 

[KenHenderson]

KEN YOUR NEW SIGNATURE IS KILLING ME MAN!!!!!

Joey,

You're the only one. I did a thread about it awhile back and, after 30 or so replies saying no problem, I deleted it. Sorry about the difficulties you've encountered, but you need to contact Hua, Bad4urHeart or some of the other comp gurus so they can tell you how to cure what's ailing your comp.

Ken.

 

[SiFreak]

Ken's sig is fine for me. No bandwidth issue.

choon.

 

[Deseo]

i too got the early production catback 4inch exhaust from exhaust depot for $500 shipped... stainless, can't beat the price

 

[T78supra]

I just finished modding my Apexi GT Spec to very close to 4" (95mm) specs.

I cut it just behind the resonator (behind the step down) and welded 4" piping from there to my Boostlogic 4" DP, MP.

I will take some pics next time I get it on a lift.

 

[MKIV_Aspirant]

How about the best of both worlds? 4" AND Titanium. Contact Steve Theodore about the Ti-Speed exhaust. Clone of the 4" HKS Ti, but full titanium tubing and canister. Weighs under 11 lbs. Should cost no more than a regular HKS Ti.

- Brad

That is exactly what I want. I know the Goliath has the largest internal diameter, so ideally I'd have that in Ti. I'll have to contact Steve and ask about the exhaust. Thanks.

Remember this? http://www.to4r.com/special.php?id=1 After April 29th, polls, opinions and conjecture will be replaced by results. Stay tuned.

Ken.

Excellent! Thanks. I'm reading it now.

 

[briguy453]

WOTM's system is lighter than the HKS Ti, just as strait (so very little back pressure), just as large, and cost half what the Ti does.

Regards,
Brian.

 

[Xenon Supra]

Joey,

You're the only one. I did a thread about it awhile back and, after 30 or so replies saying no problem, I deleted it. Sorry about the difficulties you've encountered, but you need to contact Hua, Bad4urHeart or some of the other comp gurus so they can tell you how to cure what's ailing your comp.

Ken.

Thanks man, I must have missed that thread. I love the sig but I'm not sure how to deal with it. I'll send Hua a PM and ask him if there's anyway around it.

 

[MKIV_Aspirant]

WOTM's system is lighter than the HKS Ti, just as strait (so very little back pressure), just as large, and cost half what the Ti does.

Regards,
Brian.

Good to know. Not hard to believe either since the only Ti part on the HKS is the muffler can. The rest is SS.