Sub Frame connectors

**tmemastr** · 09-29-2009, 11:33 AM

So I want to buy some subframe connectors.
Any one have anything to say about a brand in particular?
Is one better than another?
Weld on versus bolt on?
With bolt on will I have to drill the frame or use existing holes?
Thanks

**basballny2** · 09-29-2009, 11:36 AM

bolt on you can use existing holes, UMI is a great brand thats what i have, personally i would rather not weld anything to my car so i went with bolt ons. Unless you plan on having MASSIVE hp, the bolts arent going to break. Now its just a matter of 3-point vs 2-point.

**TransAm11973** · 09-29-2009, 12:32 PM

3-point weld on...end of story

***SMWS6TA*** · 09-29-2009, 01:02 PM

If you get weld ons do they hinder you when you have to work on something underneath?

**KMdef9** · 09-29-2009, 01:19 PM

Originally Posted by tmemastr

So I want to buy some subframe connectors.
Any one have anything to say about a brand in particular?
Is one better than another?
Weld on versus bolt on?
With bolt on will I have to drill the frame or use existing holes?
Thanks

If you don't know anyone who knows how weld, bolt-ons. Especially if your not driving a crazy modded car. You can always weld them down the road if you feel it necessary, if you have a lift. No lift needed for the bolt ons.

3 point all day.

**INeedLS1** · 09-29-2009, 02:18 PM

3 point UMI. Look great, fit even better.

**basballny2** · 09-29-2009, 02:18 PM

U need to install them on a loaded lift, personally I went with bolt ons for 2 reasons, one i dont like anything welded to my car, and 2 u can always bolt them on and put a few spot welds, i can almost 100% guarentee they arent going anywhere unless your making crazy power

**Trans Am WS6** · 09-29-2009, 03:26 PM

http://http://www.ls1.com/forums/sho...d.php?t=119417

I asked the same question a while back

**creeper** · 09-29-2009, 03:48 PM

weld-ins are better. not by a huge amount, but if you plan on keeping your car for a while why not. you can still remove weld-ins if you really want. i bought mine used.

as far as interfering with anything under the car, they won't. supposedly they get in the way of one of the STS rear-mount turbo pipes but that's not all that common of an issue. if you get boxed you then have an extended jacking point which is very nice.

**ES rider** · 09-29-2009, 05:03 PM

Anybody on here get a good deal on a set of 3 point weld in?

**Rob Mellinger** · 09-29-2009, 07:12 PM

I got weld in umi 2 pt, made a huge diffrence. Fabricator by trade, weld in is the only to go.

**c5z28** · 09-30-2009, 02:47 PM

Originally Posted by TransAm11973

3-point weld on...end of story

Originally Posted by Rob Mellinger

I got weld in umi 2 pt, made a huge diffrence. Fabricator by trade, weld in is the only to go.

explain

**basballny2** · 10-01-2009, 12:19 AM

supposedly weld ons are stronger and the welds wont break.......personally unless you have a car putting over 500 hp the bolts arent going to break either, and even at 500 hp its a stretch for the bolts to break.......i say bolts with spot welds if you really feel the need to weld em in there

**tep98ws6** · 10-01-2009, 08:19 AM

3-point UMI ... love them. bolt on for now, weld on later when more power is added

**pajeff02** · 10-01-2009, 08:24 AM

2 point bolt-in UMI's -- they fit perfectly and tuck up under the car nice. The whole install took just over 30 minutes.

**Mr. Luos** · 10-01-2009, 08:30 AM

3 point if you EVER plan on running a tunnel braced torque arm.

Otherwise a set of 2 points is perfectly fine.

WELD-IN ONLY!!!
The bolts won't break, that is very true.
But they will shift. And they aren't as rigid as the weld-in variety.

**pajeff02** · 10-01-2009, 08:33 AM

Originally Posted by Mr. Luos

The bolts won't break, that is very true.
But they will shift. And they aren't as rigid as the weld-in variety.

^^ Agreed. It does appear that the bolt-in set could very easily be welded down the road. Not sure if there is any real difference in mounting points between the bolt-in and weld-in.

**02Sweet** · 10-01-2009, 08:46 AM

I went with 3 point bolt on UMI. I will eventally weld them in. They tuck nice easy install

**Rob Mellinger** · 10-01-2009, 06:58 PM

Originally Posted by Mr. Luos

3 point if you EVER plan on running a tunnel braced torque arm.

Otherwise a set of 2 points is perfectly fine.

WELD-IN ONLY!!!
The bolts won't break, that is very true.
But they will shift. And they aren't as rigid as the weld-in variety.

Thats what I meant.

**LSCyaL8R** · 10-02-2009, 09:21 AM

I went with the 3 point UMI bolt in set up. Got the Chassis stiffening package from sam that included the UMI STB. After lowering I have come to realize that the SFC's act as a sort of sacrifice to the road gods when you try to drive over things. better to smash a replaceable bar than to smash your floorpan! Can't say the same for the 2 point bars since they tuck in real nice and invisible like. though I haven't had much issue with my 3 points. make the car a lot more solid feeling.