C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

TPIS catack installed today

Thread Tools
 
Search this Thread
 
Old Oct 23, 2002 | 07:57 PM
  #1  
AS84's Avatar
AS84
Thread Starter
Melting Slicks
 
Joined: Aug 2000
Posts: 2,009
Likes: 1
From: Springfield MO
Default TPIS catack installed today

Well, vic89 and 65Z01 were right on the money...it didn't fit worth crap. The width was fine....the tips stuck out 2" past the bumper. So with the help of super dad ( yes I know I'm a big boy, but there are some things that dad can still do better :yesnod: ) Anyway he cut 2" off of the 3.5" Y pipe welded it back together....perfect. Everything is in the stock location using the stock mounting points. It certainly amplified the cam!! I'll get some pics up tomorrow and some sound clips...although I have no method of hosting the videos.
Reply
Old Oct 24, 2002 | 12:46 AM
  #2  
jmrl98's Avatar
jmrl98
Drifting
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2002
Posts: 1,509
Likes: 3
From: Hazel Park MI
Default Re: TPIS catack installed today (AS84)

So now it appears TPIS scored a hat trick with their cat backs! Three crap fits. I've had success with other TPIS products, but I would expect more precision from them! :U And I'm thinking of a cat back system in spring, and TPIS just dropped to the middle of the pack!
Reply
Old Oct 24, 2002 | 12:53 AM
  #3  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default Re: TPIS catack installed today (AS84)

Nice fix up on that cat back; I'll bet it sounds great though.

It is a nice piece, if it was just fabricated to fit the C4..., but performance and sound is great.
Reply
Old Oct 24, 2002 | 10:45 AM
  #4  
LT4POWR's Avatar
LT4POWR
Le Mans Master
15 Year Member
 
Joined: Jul 2000
Posts: 5,012
Likes: 5
From: OKC OK
Default Re: TPIS catack installed today (jmrl98)

So now it appears TPIS scored a hat trick with their cat backs! Three crap fits. I've had success with other TPIS products, but I would expect more precision from them! :U And I'm thinking of a cat back system in spring, and TPIS just dropped to the middle of the pack!
Make that four crappy fits. The system is :U
Reply
Old Oct 24, 2002 | 11:20 AM
  #5  
AS84's Avatar
AS84
Thread Starter
Melting Slicks
 
Joined: Aug 2000
Posts: 2,009
Likes: 1
From: Springfield MO
Default Re: TPIS catack installed today (LT4POWR)

After driving it last night I feel that all the trouble of making it fit was worth it. At idle it rattles the windows in my house while the car is sitting in the driveway. Going down the street it turns many more heads. I haven't hit the highway yet, but i imagine at 70 or so in 6th that it's gonna rattle my eyes out. I knew it was gonna be loud and since the car isn't my daily driver I figured it should sound as good as it runs.
Reply
Old Oct 24, 2002 | 12:07 PM
  #6  
FlyboyZR1's Avatar
FlyboyZR1
Drifting
20 Year Member
 
Joined: Aug 2001
Posts: 1,550
Likes: 27
From: Minneapolis MN
Default Re: TPIS catack installed today (AS84)

Looking forward to those pics! Do you notice any performance increase?
Reply
Old Oct 24, 2002 | 01:35 PM
  #7  
AS84's Avatar
AS84
Thread Starter
Melting Slicks
 
Joined: Aug 2000
Posts: 2,009
Likes: 1
From: Springfield MO
Default Re: TPIS catack installed today (FlyboyZR1)

I haven't leaned into it yet...it starting raining after I finished...I'll post pics when I go out for lunch.
Reply
Old Oct 24, 2002 | 04:48 PM
  #8  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default Re: TPIS catack installed today (AS84)

Unless your pre-cats or main cat are restricting you'll "feel" the difference too.

You think it ratlles the windows not, wait till you hammer it up to 5,500rpm!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Oct 24, 2002 | 06:36 PM
  #9  
FlyboyZR1's Avatar
FlyboyZR1
Drifting
20 Year Member
 
Joined: Aug 2001
Posts: 1,550
Likes: 27
From: Minneapolis MN
Default Re: TPIS catack installed today (65Z01)

Unless your pre-cats or main cat are restricting you'll "feel" the difference too.
There was a recent thread saying that a 3" exhaust is overkill on an L98. Isn't the TPIS like 3.5"? :eek:


[Modified by FlyboyZR1, 4:40 PM 10/24/2002]
Reply
Old Oct 24, 2002 | 07:20 PM
  #10  
AS84's Avatar
AS84
Thread Starter
Melting Slicks
 
Joined: Aug 2000
Posts: 2,009
Likes: 1
From: Springfield MO
Default Re: TPIS catack installed today (FlyboyZR1)

65Z01-cats have been fixed ;) no emissions here. I don't drive the car everyday so my butt dyno is not very sensitive :D
FlyboyZR1- My exhaust setup is 3" all the way to the rear y where it goes to 3.5" for 8 " then splits to 3". Might be overkill on a stock 350 but it's a proven system and it will work nicely with my 421 I'm putting together.
Reply

Get notified of new replies

To TPIS catack installed today





All times are GMT -4. The time now is 01:42 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE