Rx7Nub

anyone know how big the inside of the rb turbo presilencer is? and it says it get's rid of the lawnmower sound of our cars when we have straight pipe on www.rx7store.net, anyone know if this is true? I want to quiet down my car a bit, and get rid of the anoying lawnmower sound, but i want to try to stay full 3", is this possible? thanks
-mark

also the one im lookin at is here http://66.216.67.51/product.asp?0=210&1=258&3=379

Scott 89t2

probably 2.5

Rx7Nub

that is what I was thinking, but what presilencer is on the rb full turbo exhaust.. they say it is full 3" to the y-pipe don't they.. so then the presilencer should be 3"?

Rx7Nub

I checked out the full turbo exhaust pre-silencer and the one on rx7store.net, and it seems that they are two different ones, does anyone know if i got the 3.15 inch dp and the 3.15 inch presilencer from the full turbo exhaust and put it on my car if it would get rid of the lawnmower sound?

Rx7Nub

bump?

Funklord

from racing beats website
"Supplied with a 3.15-inch (80mm) inlet and outlet flange, this presilencer section can also be used in a custom exhaust application"

$225 is a lot for a pre-silencer... i've heard a lot of people had good results using a 3" borla xr1 race muffler as a presilencer.

Taelem

can the borla stand up to the heat generated by a rotary though?

luiml73

iTrader: (1)

I have a Turbofb with RB presilencer 2.5" and 3" Downpipe HKS muffler. Sounds nice. But $225 ia alot of money. I bought mine used for $30. So if people say Borla is good enough, that might be your best bet.

Funklord

the xr1 is stainless steel with stainless steel packing. its not dirt cheap ($140 from summit) but its still cheaper than the racing beat one.

BlackRx7

I belive it is a 3" ID (inner diameter) but I could be wrong, cause 0.15" doesn't seem like it would be thick enough, even for a flange, I know for a fact I have the RB 2.5" Turbo presilencer and it has a 2.5" ID.....

XTC7 turbo

I have the RB presilencer and it made my turbo engine exhaust note deeper. Definitely a better sound than stock. Not sure what size it is as the car is at the shop.

Taelem

did it make it any quieter? or did it just make it deeper?

BlackRx7

Straight pipe, is the same flow pattern as a presilencer, however my car felt a little for torqueier with the presilencers on...

Rx7Nub

but does anyone know if it get's rid of the high pitched droan our cars have?

Kahren

iTrader: (13)

drone is from your catback, if u have somethign that looks liek a folgers can it iwll drone u cant fix that. presilencers do help to get a lot of the tinny rotary noise out. racing beat is great in my opinion. sounds good and makes good power and its not too loud.

Rotorific

iTrader: (1)

folgers can this

XTC7 turbo

It didn't make it quieter, but definitely a deeper drone noise.