Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: Welsh Dan on December 15, 2005, 12:23:18 AM

Title: How loud? Possible quiet exhaust options?
Post by: Welsh Dan on December 15, 2005, 12:23:18 AM
Hello y\'all

I\'ve just converted over to a single on my FD and its been mapped by Ross @ Dragon. However, whilst it was loud before, the exhaust seems as loud as it was before at idle and normal pootling about, but now when I give it a bit of welly its stupidly loud now!

Is this the case for all single turbo\'d ones? Are they all incredibly loud?

Any suggestions for a quieter exhaust. I "think" that its a Hyper SR cat back exhaust on it, with a Dragon De-cat and the downpipe straight from the turbo to the decat pipe?
Title: How loud? Possible quiet exhaust options?
Post by: Jin Kazama on December 15, 2005, 07:23:50 AM
Racing Beat. Good flow characteristics and quiet with it.
Title: How loud? Possible quiet exhaust options?
Post by: McCARTHY on December 15, 2005, 12:29:56 PM
i think you\'ll find most single turbos silly loud to be honest..... I have to FD\'s at the moment and like you said tick over on the single turbo is like running around in the twin
Title: How loud? Possible quiet exhaust options?
Post by: Ed_RX7 on December 15, 2005, 03:38:31 PM
you\'ll need to get a silenced mid pipe..that the only way to shut it up significantly.
Title: How loud? Possible quiet exhaust options?
Post by: steve b on December 15, 2005, 05:52:30 PM
Go to a good fabricator such as Hayward & Scott they will tailor the system to whatever volume you like, typical price at Haywards for full stainless downpipe back system is £528 inc, if you want it polished etc then they\'ll do that too for more money.
Title: How loud? Possible quiet exhaust options?
Post by: Welsh Dan on December 15, 2005, 09:53:57 PM
As stupid as this sounds, I presume that the mid-pipe is the bit that goes where the CAT used to be, so if I get a silenced de-cat pipe it should help?
Title: How loud? Possible quiet exhaust options?
Post by: Ed_RX7 on December 15, 2005, 09:58:17 PM
hell yes!!!
Title: How loud? Possible quiet exhaust options?
Post by: Welsh Dan on December 15, 2005, 10:08:54 PM
Righto, will have a word with Ross on the weekend.
Title: How loud? Possible quiet exhaust options?
Post by: Warthog on December 15, 2005, 10:11:36 PM
Only silenced mid-pipe that is worth a dame is the FEED one from RE:WORX, I have an HKS exhaust system with the FEED and have no probs passing the db tests for any track ( you can get a baby\'s head in my HKS rear box ). No probs talking/music inside car and no headache on a long run. If you want it nice and silent but sounding sweettttttttttt when you WOT then do what MAX has done and also fit the FEED back box. HTH. :cool
Title: How loud? Possible quiet exhaust options?
Post by: Initial-D on December 16, 2005, 10:10:14 AM
But Feed exhaust parts are ££££!!!
Certainly one of, if not - the best tho.