Top Speed's Cat Back System Installation

[Fintro11]

did anybody end up getting some video of the before / after?

[Slate 01]

Originally Posted by rfuerst911sc

Yeah I am familiar with them as I have two of them on my cat delete pipes. I was just curious if the 2 " will fit both sides of the U tube ? I assume yes but wanted to make sure before I order them.

Yes is the answer you seek, young skywalker (they would let me just say yes, not enough characters)

[Slate 01]

Originally Posted by sjbox

Had the TSPro exhaust installed without any bypass/delete pipes and now have the infamous drone problem. Looking at getting the "catless test pipe", also from TSPro. Can someone help me with other parts that I need to get along with the test pipes?

While installing the exhaust, my mechanic had to cut the C-pipe (or is it called U-pipe?) between the exhaust and secondary cats because the angle wasn't right between the exhaust and secondary cats with the C-pipe as is.

Now, if I am replacing the secondary cat section with the test pipes, do I need a new set of C-pipes? And, what's this clamp business?

Thanks!

Go to Napa and get the 2" Easy Clamps, trust me don't screw around, just do yourself a favor and install them. You can thank me later.

[BruceH]

Originally Posted by Slate 01

Go to Napa and get the 2" Easy Clamps, trust me don't screw around, just do yourself a favor and install them. You can thank me later.

Yep, get the clamps. I get a grin every time I go under a bridge or better yet, a tunnel Serious sound, no drone.

[gtoger]

I'll admit, I got this exhaust system purely for looks. It's a cheap enough way to get rid of what my wife not-so-lovingly refers to as the car's butt-hole. I took mine to an exhaust shop and had it welded in rather than use clamps, because I've got bad history with the clamps.

It's a bunch louder now. Jury is still out on if I like it or not but I'm promising to give until at least the next oil change to pass judgement. I *think* I like it, but I need more miles under varying conditions, and I understand it takes some miles to break them in properly.

One thing I did notice is they appear to ship with a coating that, once heated, will flake off in a fine white powder. It wipes right off and doesn't alarm me, just thought I'd mention.

A picture of the installed exhaust:


To my eye, this is the sort of exhaust tips the car should have shipped with originally.

[BruceH]

Yes, give it some time, the sound will improve. Be careful about wiping anything off of your paint! The exhaust will shed fiberglass for a while. Wiping it off dry will cause scratches I used a hose to wash it a way.

[Nine8Six]

RE drone; not sure if this relevant but did the aftermarket exhaust swap also and wrapped the pipes from mufflers up to the front cats (asbestos wraps? dunno the name of that stuff). It cancelled all of the drone I was getting in the mid revs. Sounds fab now... in and out of car

Later wrapped the headers also. Keeps the bay cooler

Wroom wroom in tunnels here also Bruce loll big time (5~6k rpm and all man)

[BruceH]

Originally Posted by Nine8Six

RE drone; not sure if this relevant but did the aftermarket exhaust swap also and wrapped the pipes from mufflers up to the front cats (asbestos wraps? dunno the name of that stuff). It cancelled all of the drone I was getting in the mid revs. Sounds fab now... in and out of car

Later wrapped the headers also. Keeps the bay cooler

Wroom wroom in tunnels here also Bruce loll big time (5~6k rpm and all man)

Wroom Wroom, oh yeah

[gtoger]

Originally Posted by BruceH

Yes, give it some time, the sound will improve. Be careful about wiping anything off of your paint! The exhaust will shed fiberglass for a while. Wiping it off dry will cause scratches I used a hose to wash it a way.

Oh wow! That's what that is? OK. Yeah, thanks for that tip! I'm anxious to get things broken in. Meanwhile, I kept the old exhaust... just in case.

[BruceH]

Originally Posted by gtoger

Oh wow! That's what that is? OK. Yeah, thanks for that tip! I'm anxious to get things broken in. Meanwhile, I kept the old exhaust... just in case.

My old exhaust sat in the garage for awhile, now it's in the attic

[gtoger]

Curious on what I should do now that the new exhaust is on. Will the EMC (computer) re-calibrate itself? Do I need to unplug the battery and let it all reset? Something else? Nothing?

[BruceH]

Nothing, except take it for a nice, long, spirited drive. It will learn

[Fintro11]

I had to cut the one pipe to make it fit, but holy **************** the sound is good

[BruceH]

Glad you got it on! Drone? Wait until you get some miles on it, it only gets better Remember, do not brush off the white fiberglass that you will see on the bumper. Rinse with water! Have a great weekend

[Fintro11]

comparison video

[BruceH]

Outstanding video Martin! Thanks for doing and posting. Sounds great

[happygilmour]

Question…I bought a slightly used Top Speed type exhaust with no hardware. Will the old mounting bolts to the trans work?
Should I replace the clamps that go from the U pipes to the cats with easy clamps or just use the old ones? Thanks!

[Chard]

If you want to replace clamps (I'd recommend) I have a set for sale that I never installed before selling the car. These sleeves were recommended earlier in this post to cure exhaust leaking. Top Speed's Cat Back System Installation

http://986forum.com/forums/boxster-parts-sale-wanted/57342-parting-out-red-white-tails-pass-mesh-wind-screen-etc.html

[Slate 01]

Originally Posted by happygilmour

Question…I bought a slightly used Top Speed type exhaust with no hardware. Will the old mounting bolts to the trans work?
Should I replace the clamps that go from the U pipes to the cats with easy clamps or just use the old ones? Thanks!

Easy Clamps. In case you missed it in the numerous other posts on the subject let me give you a little reminder

INSTALL THE EASY CLAMPS GET 2" ORDER THAT SIZE FROM NAPA!!!!!!!!!

okay i'm calm again, geez (LOL)

[Nine8Six]

Originally Posted by Fintro11

comparison video

Omg, man that sounds far better than mine :/ This mod has to be day-and-night for you. Nice vid comp