Tuesday, February 14, 2012

GS with LS460 Bumper & Exhaust Tips.

After the last custom bumper build with Anh-Tuan for his LS I thought I'd never do another one. Well almost two years later and another one had to be done. I've always disliked the rear bumper of the GS, it just didn't seem to flow with the car. I always thought the angle for the slope from the wheel well to the ends of the exhaust was too steep. The lines of the LS460 and the embedded tips were something I thought would flow really well with the body of the GS. Chris Ty's car was the first that I've seen with embedded LS460 tips on his Junction Produce Bumper and has been a great inspiration. I've been meaning to do this for months now and finally got a break to work on it for a bit. After measuring the LS460 bumper I was surprised to find that the width to be very close to the width of the GS bumper and so the LS460 bumper was ordered and it began. I tried to document this process as best I can. Feel free to leave any comments or queries they are greatly appreciated.

The GS and LS460 bumper side by side.

LS460 bumper cut and overlaying the GS bumper

After more measurement for how tall I wanted the bumper to be I zip tied them in place the sides needed to be extended about an inch. After getting donor piece from the old bumper the LS bumper was extended and zipped tied in place and everything was ready to be fused together. I wanted to try plastic welding everything together but I was being impatient at this point and couldn't wait for everything to come in so I used  the Lord Fusor 100EZ  instead.

After fusing everything together 3M filler was used to smooth everything out.

After sanding and sanding and sanding some more I realized I sand way too much off. Which inevitably means I have to refill and re-sand. I'm getting the hang of it though. This process took me the longest, to smooth everything out and get the lines, dips and dents as close to factory looking as possible. 

Ready to be primed for the first time.


Priming the bumper showed a lot of faults in the bumper which needed to be addressed, this just means more sanding. I had left the tow hook covers on the bumper to give it more of a factory look but after putting them in I realized it didn't sit flush so I ended up just fusing and filling that in. This meant more sanding. At this point I really hate the smell of fusor and filler.

Here it is primed again after filling in the tow hook spots

Guide coat put on for final blocking and then paint.

Had cracked my front lip so decided to fix that and have the bumper painted as well. 


While the paint was going on I wanted to paint the inside of the LS460 tips as well. I wanted to just accent the outside trim of the tips more and painting the insides black seemed like the best way to go about this.


And all put together

Test fit. 

This has taken me about a month to do working primarily on the weekends. I'm sure there are other ways to go about this but this is not what I do. I'm primarily an IT person. There is no way I could have done this without the help of my friends at The Body Shop in Garner, NC. Chet Massey for being patient with me, teaching me and fine tuning the body lines for me. Jeremy Clack for painting my bumpers and doing an awesome job on it. I would like to thank both of them for letting me use the shop and especially for their guidance and knowledge through this build.  

Will post more pictures once its all cleaned up and chrome stripping etc put back on.


  1. Email flawlessfitment@gmail.com for inquiries. Thanks.

  2. I have a question or 2 on how to match up and mount the 2 bumpers together. Do you overlap the LS bumper on top of GS bumper or do you cut and match end of cut LS bumper to end of Gs bumper before you ziptie them toge&ther?;

  3. You can do it either way, I however cut and matched the ends then ziptied them together.

  4. You can do it either way, I however cut and matched the ends then ziptied them together.