Borla XR-1's

RoadconeTuning · 04-01-2013, 02:13 PM

has anyone on here put XR-1's in an exhaust as the only muffler? looking at replacing my stock mufflers with XR-1 2.5" 12x4.25" case mufflers after i have the X-pipe put in this week that will remove two cats and a mid muffler. how did it sound? was it on an LS motor?

Mustangscotty · 04-01-2013, 02:18 PM

On a Terminator with a KB..

Do yourself a favor and do not remove two cats. The mid muffler may be alright.. I've got full length headers into high flow cats, x pipe and Borla catback with XR-1's with a 3" pipe and it screams at WOT. Had the cats off for a few years and it was just too loud. The drone never did go away until I hit 80 on the interstate. At WOT the car was like the start of the Daytona 500. The Chevy boys got to hear the call of the wild.

The cats keep the car quiet around town and i hear the radio.

Foose04 · 04-01-2013, 02:53 PM

I don't consider my XR-1 to be to loud for a 4" setup, it's very reasonable daily driving/conversation in the truck. I'm running their 16", oval design, no cats. However the turbo/turbine housing eats some of the sound. Over all sound is great in my opinion.

RoadconeTuning · 04-01-2013, 03:06 PM

The car will still have cats, they are SLP "high flow" cats that came with the headers. this is what i have currently

they are TINY cats that i cant see helping kill sound.

supposedly this setup with stock mufflers sounds pretty good but i would drop 35lbs off the car just by going to an XR1 muffler over the stock ones... i assume i'll lose 20lbs from mid muffler and the two cats this week.

Here are the headers are are on the car right now... 1 3/4" to 2.5" w/ cats

GreebeanZ28 · 04-01-2013, 03:23 PM

I got bullets off the headers merging into a borla xr-1. It sounds gooooooooooooood. On an lt1 though, so of course it sounds better than ls crud.

BAD BOB · 04-01-2013, 03:37 PM

i did a 3" system on a ls2 fox body with them. it had long tubes no cats Xr1s and 3" tail pipes. I think it sounds real good and not too loud.

BIRDMAN · 04-01-2013, 04:30 PM

I had XR-1s on my C5 vert years ago. Loved the sound...HATED the drone! Was the single center resonator and stock manifolds/cats.

dkbmxer002 · 04-01-2013, 05:00 PM

Just run open head like a boss. Don't even worry about headers... And run 2% tint.

RoadconeTuning · 04-01-2013, 05:08 PM

I already spray painted the windows matte black.

BIRDMAN · 04-01-2013, 05:12 PM

Quote:

Originally Posted by RoadconeTuning

I already spray painted the windows matte black.

Rofl

dkbmxer002 · 04-01-2013, 05:13 PM

Quote:

Originally Posted by RoadconeTuning

I already spray painted the windows matte black.

BOSS

cliff-1972 · 04-02-2013, 12:55 PM

Got one on my Ford/Cummins

4 1/2" inlet/outlet

04-01-2013, 02:13 PM	#1
RoadconeTuning Senior Member Join Date: Jun 2008 Location: Upstate, SC Posts: 2,684	Borla XR-1's has anyone on here put XR-1's in an exhaust as the only muffler? looking at replacing my stock mufflers with XR-1 2.5" 12x4.25" case mufflers after i have the X-pipe put in this week that will remove two cats and a mid muffler. how did it sound? was it on an LS motor? __________________ FIRSBIRZ

04-01-2013, 02:18 PM	#2
Mustangscotty Senior Member Join Date: Dec 2007 Posts: 699	On a Terminator with a KB.. Do yourself a favor and do not remove two cats. The mid muffler may be alright.. I've got full length headers into high flow cats, x pipe and Borla catback with XR-1's with a 3" pipe and it screams at WOT. Had the cats off for a few years and it was just too loud. The drone never did go away until I hit 80 on the interstate. At WOT the car was like the start of the Daytona 500. The Chevy boys got to hear the call of the wild. The cats keep the car quiet around town and i hear the radio. Last edited by Mustangscotty; 04-01-2013 at 02:33 PM.

04-01-2013, 02:53 PM	#3
Foose04 Senior Member Join Date: Feb 2010 Posts: 965	I don't consider my XR-1 to be to loud for a 4" setup, it's very reasonable daily driving/conversation in the truck. I'm running their 16", oval design, no cats. However the turbo/turbine housing eats some of the sound. Over all sound is great in my opinion. __________________ 12 GMC Denali HD: 4x4, 12" Bullet Proof, 24x12 American Forces, 40x15.50 Toyo M/T's, h&s mini max, deleted, 5" axle dump, S&B intake,tractions bars, air bags. 04 GMC 1500RST: TMS Iron 347/S480/4l80E - 9.63@143.22 05 GMC 2500HD: LLY@372HP/669TQ, 4x4, 8" FabTech, 4.56 gears & 37" Toyo M/T's

04-01-2013, 03:06 PM	#4
RoadconeTuning Senior Member Join Date: Jun 2008 Location: Upstate, SC Posts: 2,684	The car will still have cats, they are SLP "high flow" cats that came with the headers. this is what i have currently they are TINY cats that i cant see helping kill sound. supposedly this setup with stock mufflers sounds pretty good but i would drop 35lbs off the car just by going to an XR1 muffler over the stock ones... i assume i'll lose 20lbs from mid muffler and the two cats this week. Here are the headers are are on the car right now... 1 3/4" to 2.5" w/ cats __________________ FIRSBIRZ

04-01-2013, 03:23 PM	#5
GreebeanZ28 Senior Member Join Date: Oct 2011 Location: Easley Posts: 2,300	I got bullets off the headers merging into a borla xr-1. It sounds gooooooooooooood. On an lt1 though, so of course it sounds better than ls crud. __________________

04-01-2013, 03:37 PM	#6
BAD BOB Senior Member Join Date: Mar 2008 Location: SUMMERVILLE Posts: 3,681	i did a 3" system on a ls2 fox body with them. it had long tubes no cats Xr1s and 3" tail pipes. I think it sounds real good and not too loud. __________________ IM BAD BOB

04-01-2013, 04:30 PM	#7
BIRDMAN Senior Member Join Date: Sep 2012 Location: Columbia, SC Posts: 2,943	I had XR-1s on my C5 vert years ago. Loved the sound...HATED the drone! Was the single center resonator and stock manifolds/cats. __________________ *"I ran out of road, talent, and ideas all at the same time."*

04-01-2013, 05:00 PM	#8
dkbmxer002 Moderator Join Date: Jan 2007 Location: orlando/charleston/savannah/D.C. Posts: 2,265	Just run open head like a boss. Don't even worry about headers... And run 2% tint. __________________ white 90's ls single cam nitrous hatchback

04-01-2013, 05:08 PM	#9
RoadconeTuning Senior Member Join Date: Jun 2008 Location: Upstate, SC Posts: 2,684	I already spray painted the windows matte black. __________________ FIRSBIRZ

04-02-2013, 12:55 PM	#12
cliff-1972 Senior Member Join Date: Feb 2011 Location: Moncks Corner,S.C Posts: 292	Got one on my Ford/Cummins 4 1/2" inlet/outlet __________________ 1964 Impala 468BBC,T350 transbrake,4.30 9",10 point and 10.5 M/T's 1996 F250 4X4 12V Cummins,compound turbo 63mm over 75mm,cam,520cc pump,full billet 4R100 563hp&936ft.lbs w/a bad fuel pump and on a dynojet...just an old hunting truck