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The mkiv Supra Owners Club

Thinking of going 'D'PU, what exhaust ?


Muffleman

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With the D standing for discrete, but similar performance to BPU.

 

Tomorrow I pick this up http://www.mkivsupra.net/vbb/showthread.php?t=76471, it's no good - gotta have a Supra as a daily runner ;)

 

Thing is, I'm kidding myself if I think I won't modify it :D But it is a daily driver, I won't want the full on Supra experience everday.

 

So, I was thinking, K&N panel filter in standard airbox etc, normal stuff ie fuel pump, FCD, boost controller and gauge etc, but what about exhaust ?

 

If you ditch the cats, what does the standard exhaust flow like ? Or is there a better flowing exhaust that isn't too much louder than stock ?

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Anyone know what a decatted standard exhaust flows like ?

 

Not great, very restrictive still and will really limit boost.

 

How about a HKS Hiper Silent? It's louder than stock but by far the quietest exhuast I've heard, even quieter than the superdragger. Chris Wilson really rates them.

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i'd say both cats out on a stock exhaust would be worth investigating though. Mine ran round like that for a while. Admittedy the stock one is more restrictive than most after market ones, but the quicker spool up (cos of the cat's being out)made it very nice to drive :) (plus EGT's wouldnt be TOO bad if you raised boost a little)

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