Rev up your passion for Pontiacs and join our vibrant community of enthusiasts!

Whether you're a die-hard fan of classic muscle cars or you've got a soft spot for sleek modern models, you've found your home here at Forever Pontiac. Our community is dedicated to celebrating everything Pontiac, from the iconic GTO to the legendary Firebird and everything in between.

Unlock access to expert advice, stunning photo galleries, engaging discussions, exclusive events, and more!

Start your Pontiac journey with us today!

95naSTA's Bonneville Progression

Followers

January 17, 201214 yr

Author

I got most of the exhaust tacked together today. The cutout doesn’t fit due to how long the headers are.. It puts the cutout in a more narrow portion of the tunnel. So, for now it's just the cat and muffler. Only the rear hangers (reused 15mm ones whoo) are tacked on and I still need to add the hangers in the center. Any sagging in the exhaust in the pic is a combo of the missing hangers and the fact that it's just tacked.

The rear was a huge PITA to tuck up and get out of view. I did guess right on the bends though. I only ended up with one extra 3" bend.

The tips are still in the mail. It's going to be a bit more work to tuck them up in the bumper than I thought. The bumper support is right there.. The plan is to still go for it. I'd go up into the bumper maybe 3/4".

Tired of these Ads? Register Today!

Replies 589
Views 90.6k
Created 15 yr15 yr
Last Reply Dec 26Dec 26

Popular Days

Ringo64

Founders

17.4k posts
3 Solutions
12 Badges
4.1k Reputation

Location: Naples, FL
Name: Jim
Gender: Male
Year: 2006
Car: G6
Trim: GT
Engine: 3.5L LX9
Style: Coupe
Color: Black

2 Vehicles

January 17, 201214 yr

Founders

Bet the lift made it a lot easier!

January 17, 201214 yr

Author

It was a bit tougher than I thought it was going to be. The inlet position on the new muffler was a good bit off from the original location making it hard to tuck the muffler up and still clear everything. The inlet had to be rear of the exits and the muffler clocked to fit the 180*. Then the bends to the rest of the exhaust from there were a bit tough.

It's going to need some tweaking after welding. The heat will distort it a bit I'm sure.. especially since it's stainless. (more thermal expansion than mild)

Either way though it's better than doing it in a driveway/the street like the last 3" exhaust I built:

January 19, 201214 yr

Author

Aside from my welder jamming up every 10 mins, today went pretty good.

Everything is finished and welded all the way to just before where the tips are going to be. There wasn't enough time to really dig into that portion of the project.

The stainless hooks I got off McMaster worked out good for the front factory exhaust hangers. Even with those welded in there was still some sag around the gas tank. I guess more and heavier material will do that.. The shop had a broken stainless exhaust that I stole a 90* hanger from, a common two hole rubber hanger, and I used an extra stainless hook I had to make an additional hanger under the rear lower control arm mount. I threw a bolt through the hook to the LCA mount with big washers up top to distribute the load and welded the stainless 90 to the exhaust. The result is awesome. The play in the exhaust is very minimal and factory feeling.

I did have to do some minor tweaking of the passenger exhaust hanger and pipe to get the muffler level and tips symmetrical but other than that it went smoother than I thought it was going to.

I also finally got to mount my ABS module. I cut up a silicon coupler for cushion between the module, body, and bracket. Bracket positioning was dependent on body contour but it's solid.