Joe, the idea I like best is the 4-inch titanium piping with the 4-inch HKS Racing Titanium muffler. Developing your own in-house muffler, and manufacturing it seems like it, would add certain costs that could be effectively minimized somewhat if all you're doing is joining your ti piping with the HKS muffler.
HKS 3.4L: 1110 all-boost whp/839 lb-ft @ 2.6KG/CM^2
1994 "SP ENGINEERING" TWIN HKS GT3240 TOYOTA SUPRA TURBO
1985 P-Type Celica Supra 5MT
1995 Toyota Supra Turbo 6MT (APU)
2006 Toyota 4Runner Limited V8
2007 Lexus IS 350
2010 Lexus IS-F
Can the HKS titanium muffler even be purchased separately?
1995 67mm na-t hardtop
The titanium exhaust piping would be great. I was just thinking that for those who wanted a quieter exhaust (such as myself), they can take this piping and join it to a muffler of their choice...such as maybe the HKS Super Dragger which is already a pretty quiet exhaust...Darshana S...
2008 Star Fire Pearl Lexus IS-F
1997 Custom Pearl White Supra TT BPU+++
the reason this would be more than the HKS TI kit is because it uses stainless steel piping instead of titanium. has anyone here checked into availability and price of 4" titanium piping? you'd be looking at 8 dollars+ per INCH and thats if you can find a supplier to do a low volume (under 1000 ft)
Now artificially aspirated...
firstname.lastname@example.orgMPH thru the MAF (auto, old set up)
1993.5 Anthracite 6 SPD "Wingless" // PRO EFI // PTE6766 // 3-Row // E-85 Fuel Sys // PHR I/M // RPS C/C // GSC S1 // CCW C14 // TRD LSD
'95 Supra TT: 6 Speed, lime/blue, APU; Vegas 2004 Best of Show (Wild), Best Interior, Best Engine Bay, Best ICE
'94 Supra TT: 4L80E Auto, Red, APU; Vegas 2007 Best Exterior Stock, Best Interior, 2JZ-GTE Wild Turbo Dyno Winner, Vegas 2008 Best Interior
'08 Tundra: Crewmax Limited, 5.7L V8, 6-Speed Auto, '07 Camry: XLE, 3.5L V6, 6-Speed Auto
If my memory is correct (much doubt about that!), I remember the Racing Titanium and Carbon ti mufflers being available separately. The original PHR turbo kits included HKS exhaust manifolds so, because HKS and PHR have done this kind of thing in the past, and if the Racing Titanium muffler is available separately, I thought it might be possible to repeat on the titanium exhaust side the same experience HKS and PHR had with HKS exhaust manifolds. I also thought HKS might favorably consider this, even if the mufflers are not currently available separately, because it would seem to be a promising business proposition and a way for HKS to keep at least one foot in the USDM.
I'm down for some 4" titanium piping to mate to my HKS muffler!!!!!!!!!!!!!!!!!
The carbon muffler can be purchased separately but its the smaller 75mm piping which defeats the plan. You can not buy the 4' Ti muffler on its own according to HKS.
I personally called EVERY vendor looking for a Ti kit the week before BF sales went on the only vendor who had one was MVP and dusty was holding out for the 19xx.xx asking price for the two he had in stock... Every vendor claimed they could be ordered but so far not one has come through. The closing of HKS USA has killed the supply and has skyrocketed demand and pricing.
I'm considering going with the Garage Whifblitz unit, they can be had for 1600.00 shipped to the USA through either Dusty or directly through Whifblitz, I've talked to them a few times. The only downside in my opinion is the Whifblitz does not come with a silencer... Which is a new priority for me so I can idle my car for allotments of time without pissing off the entire community.
MVP mentioned a project very similar to this using Greddy to produce an HKS replacement out of 100% ti... Not sure when that might come to life or if its more like the C's copy...
^ now we're talking!
How about a 5" intake pipe?
97 TT Supra - GTX4202R 833whp 691wtq
92 Pickup build link:
I'd be interested in the Ti pipe to hook up with the HKS Ti muffler - particularly a large pipe given an oval profile to have the same clearance as 4".
What is the availability of flanges to weld onto Ti pipes this size though?
The muffler is very well done, but the 4" pipe is just MIG welded together and not what I was familiar with HKS products.
At least i have to say the fitment was great.
Bear in mind that it'll be no easy task adding a muffler to TI tubing later if you find your car to loud one day ... I'll be adding an additional muffler to the 4" tubing for that reason and I'm very lucky about the fact that it's "only" stainless steel and i can TIG weld it myself without all the hazzles of evacuating when doing Ti ...
im in for a Ti pipe for my HKS
1998 Black Targa - Dynosaur Built 3.0L - V161 - BEP S374DB - QSV HDTi - FlexFuel ProEFI
I don't fuck around...but when I do, I don't fuck around!
My Build: http://www.supraforums.com/forum/sho...d.php?t=587423
The good news about doing the 4" piping in Ti separately, is it's ease to mount to the Racing Ti exhaust due to the "slip on style" via the 2 tension springs. This should be a relatively easy, straight forward contruction I would think for those as myself interested minus the exhaust. Seems to be lots of interest thus far, pending cost.
Not to go off-topic but 4" piping mated to a Carbon Ti (Mk4 app, not the 75mm universal canister) is just so beautiful to hear on/off throttle, especially with cams. It just howls and gives off a real distinctive pleasure note.
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