Thread: DIY catback install?

My son and I are going to install a GMPP catback on his 99 GTP. His Hoganperformance DP was recently installed so the bolts SHOULD be easy enough to remove.

What is the best and safest way to gain enough under car access to be able to install the catback?

On my SER, I swapped out the GReddy catback with the stock many times. I just jacked up the right side of the car and slid my ramps under the front and rear tires. Can this be done on a GTP w/o hurting anything? Is there a better way?

Other than spraying the rubber hangers with PB Blaster, is there any other tips to make this quick and easy?

If you have ramps, why not drive the car up on the ramps for the front tires and just jack up the rear end and put it on jack stands. I would think that would give plenty of clearance for everything that needs to be done.

I would spray down any bolts you need to take loose with PB blaster even if they were recently installed just so you know they will come loose easy enough.

Why dont you just send me that GMPP cat back and I'll do a long term test for ya and make sure everything is good.

When i installed mine i just jacked up the rear and put it on jackstands while the ebrake was on. Installed it in about 20 to 30 min. Like Scotty said though let it cool down and pblaster the bolts and let soak. Other than that its all cake work.

Thanks guys. I dont like (trust) jack stands, however I realize it is just a phobia of mine. I could back up my ramps but would still have to slide under the car to get to the resonator to DP bolts. However, it may be worth giving the rear ramps a shot versus lifting the side up.

Oh and I'm wondering about the ebrake too.