muffler

[AdrianL]

Hi all,
I have 95 RR LWB and wondering if it is possible to get rid of the rear resonator and install flowmaster or soem other brand mufflers on my car?
I was looking at Borla cat back exhaust system and that is too much and need to replace muffler but somehow, performance oriented muffler, not OEM.WHat will fit?

[OkieRover]

Many have done this.

[AdrianL]

I just need to find out what the muffler size is, or is it offset, in/out pipe diameter, and etc.

[Kristopher]

Most of the retailer on the web offer a mid muffler(the big one) and a two piece section with a rear muffler. British Pacific has a good deal on a set up. I am sure that Atlantic British or Rovers North has some too. It is not a difficult install. The catch there is whether or not you have a completely stock system now or if it has been hacked. Check out these links:

British Pacific, check page 5
Atlantic British
Rovers North with "NRP"

I have a flow master mid muffler with the BP exhaust and rear muffler. I had a local shop install it with all of the stock flanges and hangers so I could remove and replace just as a stock muffler. I really like the way it sounds and most people do too. It is still quiet but with a nice deep rumble. With the rear muffler gone there would be a marginal increase in flow for a much louder exhaust. Just my $.02.

--Kris

[AdrianL]

Kristopher,
So what is the size you used for the mid Flowmaster?

[Kristopher]

I dont remember the exact size, I do recall the number "50" in the parts info. I remember that they refered to it as a SUV muffler. Maybe a V50 or a C50. One of the reasons I like it is because it gets better clearance then the stock style mufflers. Another is that it is WAY more durable in addition it is better flowing.


-Kris

[AdrianL]

I checked out Flowmaster site and so many mufflers in number 50SUV series. What is the inlet and outlet size and is it offset or center?

FLOE52455 2.25" IN (C) / OUT (C): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE524552 2.25" IN (C) / OUT 2.00" (D): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE524553 2.25" IN (D) / OUT 3.00" (C): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE524554 2.25" IN (D) / OUT 2.25" (D): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE52456 2.25" IN (O) / OUT (C): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE524562 2.25" IN (O) / OUT 2.00" (D): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE52457 2.25" IN (C) / OUT (O): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE52458 2.25" IN (O) / OUT (O): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE52555 2.50" IN (C) / OUT (C): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE525552 2.50" IN (C) / OUT 2.25" (D): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE52556 2.50" IN (O) / OUT (C): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE525561 2.50" IN (O) / OUT (D) Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE525562 2.50" IN (O) / OUT 2.25" (D): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE52557 2.50" IN (C) / OUT (O): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE52558 2.50" IN (O) / OUT (O): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE53055 3.00" IN (C) / OUT (C): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE530552 3.00" IN (C) / OUT 2.50" (D): Flowmaster 50 Series: (SUV/Performance) Muffler $113.41 BUY
FLOE53056 3.00" IN (O) / OUT (C): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE530562 3.00" IN (O) / OUT 2.50" (D): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE53057 3.00" IN (C) / OUT (O): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY
FLOE53058 3.00" IN (O) / OUT (O): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY

[Kristopher]

FLOE52557 2.50" IN (C) / OUT (O): Flowmaster 50 Series (SUV / Performance) Muffler $113.41 BUY


I checked underneath. The Center in, Offset out is correct. And, though I have not had my eyes calibrated, it looks to be 2.5" in and out. If anything I would go up rather than down in the pipe size, so maybe a 3". Sorry I am not more specific. Call BP and ask them what size the pipes are for the exhaust, they will know.

--Kris

[AdrianL]

I really appreciate you checking these for me. I am going to check on the diameter and get one from flow master.
I am planning on taking the rear muffler(resonator) off and weld on straight pipe and add stainless tip to it. My muffler needs to be replaced and it is a good time to get this done.

[hamrendan]

Had a rear Flow on my 88 RR. The sound is good but on the freeway it will drone. It will almost put you to sleep!.. I have been told by a Mustang buff that the Magneflow is a better muffler as far as sound goes... the performance is probably equal. One thing i would do is try and paint it with high temp paint before you mount it, because where they weld it it always rusts, including the factory welds...

[AdrianL]

I am trying to figure out what the input and output pipe sizes are and also center or offset. I believe it is 2.5 ID and OD with Center in Offset out.

[Jonesy]

Good advice!

I had my rear muffler/resonator (whatever it is) ripped off last weekend while out playing around - the approach angle was a little to steep

SO now all I have is a pipe stickin out just past the rear hanger! So what to do? The sound is actually OK not something obnoxious that I can't live with (wife actually has no idea yet!! )

So WWYD???? Any ideas? GO to AB and buy the rear thing again? - just bolt on a pipe with a chrome tip? Put a cool sounding resonator exhaust tip?

Feedback is welcome!

[AdrianL]

Ha! Ha!
Actually, I just purchased Borla cat back exhaust from ebay. It has 5k miles on it and stainless steel muffler that AB sells for $800.00. I got it for $300.
I do not believe this kit has the rear resonator or muffler. SO, I am assuming it is okay to just connect straight pipe and add nice stainless tip to it!

[Jonesy]

What was ripped off mine was a BORLA. The pipe just went straight into it, with a tailpipe sticking out of it. Pretty simple.


I think I will have issues when I go for my vehicle check/inspection. In VA they do them once a year, and I figure the bloke will see it as missing?? It doesn't really sound/look that bad though.

[John C]

I'm almost sure it's 2.25" diam.

On my 88 RR I ran a flowmaster (series 50) in the rear and 3 gutted Cats. It sounded a bit throaty but bearable. You can hear my RR on the Dweb Back East, it's the white one going up a hill in Wurtsboro.

I'm installing the Janspeed System (headers, y-pipe, etc) next week. I'll let you know how it goes.