Quiet performance exhaust - Do they exist ?

[John Yorke]

More info please:Thumbsup!

In the for sale section

[shaunwil]

I\'ve got a feed downpipe, racing beat mid pipe (huge thing) and Ziegen Rear Silencer. More impressed with the noise level and didn\'t have any problems at oulton park. The one thing that i have found after swapping from a megan racing straight through mid pipe is a bit less grunt and now it backfires for fun (did before a little) and i get proper flames !

There are things you can do to get the noise level down !

Shaun

[Spen]

Stylus350 could you post some pics of your Racing Beat exhaust on your car and anyone else who has one too. Im trying to decide which catback to buy and its giving me a headache.

[dryvern]

Interesting good post Newera.

Well back to the bit I maybe able to help with:

Update. Swaped the custom chrome back box onto my recently acquired large street port single turbo rex. It seems these mods make the car harder to keep quiet! It is now as loud as my stock twin car was with the Blitz! Both have silenced mid pipes. Does any one know if the RB box will flow well enough for a TA45 turbo engine? Its all 3" bore at the moment.

Regarding the bore size obviously this is for the full length of the exhaust (did laugh when a guy having a performance cat back pipe on his Leon wanted "as big as possible, 3"" when every section the rest of his 2.5" reduced to 2.25" at the front & at every box. Rear 4" straight tip on 2.5 can.....awful).
Had this conversation a few times this week from a genned up guy working at the local powerflow (now now, he\'s heavily into his own tuning) who was getting stick from powerflow "why are you doing/ordering so much 3".
Powerflow rep said this again on a visit complaining (as 3" cost much more).
Long story & stats short:
3" bent piping all the way is good to flow 300-600bhp on a turbo (650 for N Asp - something the rep quoted not knowing the restriction to turbo gas). Bent piping will reduce around 1/4" at the bends (3" allowing up to 35deg bend before folding).
For a little more (up to an extra 50bhp I think) & no reduction the pipe has to be mandrell bent.
4" pipe can not be bent conventionally, it has to be mandrell bent. Costly & needed for 600bhp+ (Nascar territory).

Initially due to a hole in my rear box I went the cheaper route & for £270 had a stainless cat back with 3" box (chose length & sound) & lovely 3" slight oval tip done by Powerflow (now don\'t call me a cheapskate). I heard their packing afterwards was not so hot (from Magnaflow) & would get louder. 7 months on & fine, no prob, no change; loud but not overly.
Then I had a Magnaflow straight through stainless midpipe made £94 (not quite as nicely bent) & it got LOUD! The vibrating drone at motorway cruising & of course the flames.
I went back to Powerflow recently & had a short 3" box (their boxes do not reduce) put into the midpipe £40 (they like me/used to me, lol). Now the noise is nice, low and fairly loud, much quieter in car (almost like cat back but deeper & no do your head in motorway drone). Popping like a sod due to airpump reconnected, but soon it comes off; HKS downpipe awaiting fitting at this time which I am told will likely make it a bit louder again.........ho humm guess i\'ll see the result,lol.

By the way, I see plenty of cats for sale all the time (hanging onto mine just incase for now), which is good for those of us who need them.
But do you know that any cat is worth £35 in scrap (precious metals). Even small ones & we all know the RX7 cat is no small one (hear haggling already, lol).
It is good to offer them out first, but don\'t bin them....scrap them!

[stylus350]

Stylus350 could you post some pics of your Racing Beat exhaust on your car and anyone else who has one too. Im trying to decide which catback to buy and its giving me a headache.

Ok bud, will try tomoz as my wife had it today. (the car!)

[Carl]

The Tiger back box is by far one of the best and also most reasonable priced exhaust\'s that I have come across.
We have put them on lot\'s of cars with an unsilenced midpipe.
On both stock twins and also mid size singles they work so well.
At low RPM they are very quiet,and at revs they sound really great.
They do not upset the neighbours but flow really well.
In the car there is none of the drone that you get with the top name Jap makes,all the noise goes out the back of the car.
Regards
Carl

[TonyC]

Carl, you mentioned this exhaust when i spoke to you a couple of weeks ago. I\'ve tried to locate themsince then but had no luck with google or similar. have you a link or anything for stockists/info?

Thanks.

[rx7veilside]

clive at shy/mazdarotaryparts can supply u one

[davyv]

I got mine from clive , its ss  3 inch straight through with 3 inch internals. Very pleased with sound and quality. Its nice on tickover and normal driving, and roars  when you put your foot down.

[TonyC]

Sounds good, anyone ever had the DB level tested at a trackday or simialr (particular a car with a decat as well)

[stylus350]

Stylus350 could you post some pics of your Racing Beat exhaust on your car and anyone else who has one too. Im trying to decide which catback to buy and its giving me a headache.

Sorry its VERY dirty and I get it washed twice a week!! Looks more stock than most but not too stock. I like it.

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[stylus350]

If anyone has a good standard plastic bit that goes under the bumper as this one is melted (old exhaust responsible) can I buy it please.

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[Initial-D]

Jimmys should have one otherwise stick a post in the wanted section.

[Spen]

Cheers for that mate. Helped me out a lot!:Thumbs-up

[RobbieRX-7]

If anyone has a good standard plastic bit that goes under the bumper as this one is melted (old exhaust responsible) can I buy it please.

I\'ve got one mate. You can have it for £20 delivered