Ray Posted June 20, 2004 Share Posted June 20, 2004 In the quest for higher boost on my UK spec TT, i have had a word with powerflow. (sad i know) Im going to get a straight 2 1/2" pipe from cat back ( i mean literally straight) with no back box. will this sound oki? will it be less restrictive than most exhausts on the market? i.e blitz? any info greatly appreciated Quote Link to comment Share on other sites More sharing options...
Alex Posted June 20, 2004 Share Posted June 20, 2004 A) why not 3"? B) you do know how loud that will be don't you? You might well get pulled for it. C) You would really want it made from the turbo back to make a real difference. Quote Link to comment Share on other sites More sharing options...
paul mac Posted June 20, 2004 Share Posted June 20, 2004 you could allways get one of them in car adjustable baffle jobbys in it from apexi look on http://www.takakaira.co.jp for full spec it should quieten things down while your cruising past plod whether it quietens it down enough i dont know but there not to expensive so it could be worth a go, i would say you would get away with 2 1/2 at the back where the gas is cooling and contracting but at the turbo end you would want 3" if your going for max power imho Quote Link to comment Share on other sites More sharing options...
Ray Posted June 20, 2004 Author Share Posted June 20, 2004 oki the reason why i didnt go for 3" My de-cat pipes are already 2 1/2" so will it make a difference going for a 3" Cat back?? Also very few places in the country bend 3" pipes, Predator being one, but appparently they charge a bomb!! Quote Link to comment Share on other sites More sharing options...
michael Posted June 20, 2004 Share Posted June 20, 2004 I believe Ascar in Sheffield can do 3" - Maybe Nick @ Totally Custom can too? It'll probably sound cack mind you Quote Link to comment Share on other sites More sharing options...
Ray Posted June 20, 2004 Author Share Posted June 20, 2004 Originally posted by mcanny I believe Ascar in Sheffield can do 3" - Maybe Nick @ Totally Custom can too? It'll probably sound cack mind you well its worth a try Quote Link to comment Share on other sites More sharing options...
AJI Posted June 20, 2004 Share Posted June 20, 2004 Just want to re-itterate what Alex mentioned.... you do know how loud it is going to be? I tried putting a straight through pipe on my 2.9 Sierra last month and it was unbearable. I put a back-box back on it within two days !! With the Supra being a much higher flow ehaust than my Sierra then I would expect the noise levels to be through the roof. Silencers take away soooo much noise, even the thin types. To have no silencer on at all would be something to hear. Hey if you get it done I may be able to hear you from where I live (and thats in Cumbria !!!) If anyone has taken off all silencers on a Supra before I would sure like to know what they sound like. Quote Link to comment Share on other sites More sharing options...
Terminator Posted June 20, 2004 Share Posted June 20, 2004 Adams 400+bhp MKIII is the loudest straight through I have heard. It is loud. Quote Link to comment Share on other sites More sharing options...
Homer Posted June 20, 2004 Share Posted June 20, 2004 Before I put the RSR back box on mine I thought I'd try see what its like without any silencers on so drove it for a few miles with only the CW pipes. It was unbelievably loud, and did not sound 'nice' at all. The noise is kinda farty sounding and the drone is unbearable, I really wouldn't recommend doing this. You heard the RSR and on my car (which is pretty noisy), without the silencer it’s twice that volume and would leave your eardrums bleeding! Quote Link to comment Share on other sites More sharing options...
Nick_TC Posted June 20, 2004 Share Posted June 20, 2004 I used to run completely straight thru on my mkiii turbo, and it's too loud and you'll get permanant police presence, using the 'the turbo is my silencer' line just doesn't cut the mustard, although it did pass the M.O.T I'd suggest straight thru from turbo, into a single stright thru rear box, this just takes the edge off it, and sounds great. It's a system we now sell for the mkiii turbo off the shelf called the Pro Street and is full 3" turbo back with a single rear box. P.S you can't compare a Sierra as that's an N/A engine and will always sound different. P.P.S Adams mkiii is on its way, hopefully, to 600bhp using a modified version of our Pro Street exhaust. Quote Link to comment Share on other sites More sharing options...
Terminator Posted June 20, 2004 Share Posted June 20, 2004 Originally posted by NWS25 P.P.S Adams mkiii is on its way, hopefully, to 600bhp using a modified version of our Pro Street exhaust. Nice on Nick, cant wait to hear it:thumbs: Quote Link to comment Share on other sites More sharing options...
penguin Posted May 8, 2005 Share Posted May 8, 2005 So what happened?? did you manage to do this without major problems? Quote Link to comment Share on other sites More sharing options...
Need4Speed Posted May 8, 2005 Share Posted May 8, 2005 I wouldn't have said a Blitz Nür-Spec R was restrictive... you can just about walk through it! No silencer? Expect to get stopped. Quote Link to comment Share on other sites More sharing options...
TRD3000GT Posted May 8, 2005 Share Posted May 8, 2005 My motor will live as of Monday but it has a 4" straight through from the single turbo... 4" down pipe , 4" mid pipe, 4" HKS racing titanium all connected up to the back of a T67 turbo.. Im pretty worried about noise levels Has anyone heard a setup like this ?? Quote Link to comment Share on other sites More sharing options...
Homer Posted May 8, 2005 Share Posted May 8, 2005 So what happened?? Well, after TC folded a lot of members money and parts weren't seen again... Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted May 9, 2005 Share Posted May 9, 2005 In the quest for higher boost on my UK spec TT, i have had a word with powerflow. (sad i know) Im going to get a straight 2 1/2" pipe from cat back ( i mean literally straight) with no back box. will this sound oki? will it be less restrictive than most exhausts on the market? i.e blitz? any info greatly appreciated that would be deafening mate...... also the heat might screw the underside of your bumper....just a thought Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted May 9, 2005 Share Posted May 9, 2005 My motor will live as of Monday but it has a 4" straight through from the single turbo... 4" down pipe , 4" mid pipe, 4" HKS racing titanium all connected up to the back of a T67 turbo.. Im pretty worried about noise levels Has anyone heard a setup like this ?? Thats gonna be loud.....my mate nick had a Trick Garrett single turbo with Blitz nur and 3" all the way through that was seriously loud even not on boost sounded like an aeroplane taking off and used to shake the windows in my house when he came down the road Quote Link to comment Share on other sites More sharing options...
Soonto_HAS_soop Posted May 9, 2005 Share Posted May 9, 2005 Thats gonna be loud.....my mate nick had a Trick Garrett single turbo with Blitz nur and 3" all the way through that was seriously loud even not on boost sounded like an aeroplane taking off and used to shake the windows in my house when he came down the road Mine does that now and I only have a 2 1/2" decats with a NUR. I have to open and close the front door really quickly when the turbo timers running, as all of my glasses in my cupboards start to shake and rattle..... Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted May 9, 2005 Share Posted May 9, 2005 My motor will live as of Monday but it has a 4" straight through from the single turbo... 4" down pipe , 4" mid pipe, 4" HKS racing titanium all connected up to the back of a T67 turbo.. Im pretty worried about noise levels Has anyone heard a setup like this ?? Yes mine, and you have heard it too Chris Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted May 9, 2005 Share Posted May 9, 2005 Terry the car I was refering too was Nick K's old one the one you built....thats the one I heard.....and it was pretty darn loud Quote Link to comment Share on other sites More sharing options...
TRD3000GT Posted May 9, 2005 Share Posted May 9, 2005 Yes mine, and you have heard it too Chris Ok, thanks Terry. I had a feeling that it might have been ear splitting but from the last time i heard yours it was just perfect I thought you were running 3" downpipe and midpipe? i guess even if you are/ The difference in noise wont be huge at all Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted May 10, 2005 Share Posted May 10, 2005 No Chris it has always run the full 4" DP/MP & exhaust Quote Link to comment Share on other sites More sharing options...
TRD3000GT Posted May 10, 2005 Share Posted May 10, 2005 No Chris it has always run the full 4" DP/MP & exhaust Nice. At least I know what to expect. yours was runnıng a Vortx cast manifold rıght? will a tubular make that much of a a difference? Thanks Quote Link to comment Share on other sites More sharing options...
Matt T Posted May 10, 2005 Share Posted May 10, 2005 What other 4" bore systems are out there? The HKS Ti isnt exactly cheap! Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted May 10, 2005 Share Posted May 10, 2005 I have the full Boostlogic 4" exhaust Quote Link to comment Share on other sites More sharing options...
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