Author Topic: Which Exhaust ?  (Read 6716 times)

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Offline Joel Russo

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Which Exhaust ?
« on: September 25 2013, 12:08:57 PM »
Had the car on the lift to install a new set of MT Drag Radials, and I realized my one muffler shit the bed... Exhaust system is aftermarket but has been on the car for the past 20 years. Car only has 14K on the clock.

I did my research and it looks like the Pypes, 2.5" cat back system with the Race Pro mufflers is a good value for the money for a complete bolt on system.

Is there any other system that is cat back, bolt on, 2.5", that I should look at before I pull the trigger on this Pypes system?  I don't want a loud exhaust... 
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline Steve Wood

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Re: Which Exhaust ?
« Reply #1 on: September 25 2013, 01:02:30 PM »
the Pypes is the best bang for the money.  They have about three different mufflers.  You can go to their site and listen.  Turbo cars are always quieter than regular cars
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Offline Joel Russo

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Re: Which Exhaust ?
« Reply #2 on: September 25 2013, 01:45:37 PM »
Steve~  I talked to the guy at Pypes that designed the system, at least that's what he told me...  He recommended the Race Pro muffler as it's the only "straight through" design of the three.  I don't want a chamber type muffler, on the GN.  Flowmasters are good on the BB Camaro, but not so on the turbo car.  I want to hear the turbo spool.
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline Steve Wood

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Re: Which Exhaust ?
« Reply #3 on: September 25 2013, 01:52:26 PM »
I agree completely

Not sure I agree that completely :D  I hate FloMasters totally and think they are too restrictive for a serious car-of course, take it with a grain of salt because I have Walker Race Bullets on my 440....
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Offline motorhead

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Re: Which Exhaust ?
« Reply #4 on: September 25 2013, 02:25:33 PM »
Are you looking at the stainless or aluminized system?

I'd suggest stainless as it will out live the car... your 20 year old system was probably made out of mild steel which is why it rotted out.
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Offline Joel Russo

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Re: Which Exhaust ?
« Reply #5 on: September 25 2013, 04:04:08 PM »
Are you looking at the stainless or aluminized system?

I'd suggest stainless as it will out live the car... your 20 year old system was probably made out of mild steel which is why it rotted out.

I was looking at the 409 stainless system that Kirban sells.  I don't like the stainless tips, but I can always pain them black.
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline Scoobum

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Re: Which Exhaust ?
« Reply #6 on: September 25 2013, 05:11:54 PM »
RJC
Hard work pays off, dreams come true. Bad times don't last, but BAD GUYS do!

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Offline gnonyx

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Re: Which Exhaust ?
« Reply #7 on: September 25 2013, 08:49:19 PM »
X2 on the RJC, When the funds are available this is the one I will get
http://rjcracing.com/product/exhaust-systems-2/
87 GN T-Top, ScanMaster, hot-wire kit, Full Throttle chips w/ matching 60# injectors, adj. fuel pump, and triple pod gauges w/ AEM A/F gauge, oil pressure gauge, vac/boost gauge, Kenne Belle rear seat brace, upgraded tranny w/ Art Carr pan cover, and a pre-lube oil system.

Offline Joel Russo

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Re: Which Exhaust ?
« Reply #8 on: September 26 2013, 07:53:40 AM »
RJC


I overlooked the RJC because I was after a 2.5"... Now I need to take a closer look.
The 304 is certainly better quality than the 409.  I'll give Jason a ring and pick his brain.
Thanks for the link.
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline Shimy87

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Re: Which Exhaust ?
« Reply #9 on: September 26 2013, 03:46:10 PM »
Just installed the Pypes system....real ly like it
87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline Joel Russo

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Re: Which Exhaust ?
« Reply #10 on: September 26 2013, 04:10:29 PM »
Just installed the Pypes system....real ly like it

Any issues with the install?
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline Shimy87

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Re: Which Exhaust ?
« Reply #11 on: September 26 2013, 04:40:19 PM »
Not to many. Glad I had a lift. The pipe that goes from the cat back had to be trimmed to fit, had to cut about 2 inches off one side and 1 inch off other. Also the flange is pretty thick at the cat and kinda hard to get nuts started. Also the tail pipes mount solidly to the frame. They dont supply the bolts but they do supply the poly bushings. The holes in the frame you use are just out of finger reach so thats a challenge.
 
I do like the sound but a but "droney" at 60 mph. I know Flowmaster's are no good for performance on these cars but I did like that sound much better.
 
Hope that helps  :cheers:
87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline Joel Russo

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Re: Which Exhaust ?
« Reply #12 on: September 26 2013, 10:00:25 PM »
I have a lift, so I'm good there.  So much for a bolt on system if you had to cut the pipes???
In the pictures I've seen of the Pypes installed, it looks like the tailpipes hang down a bit under the body.  My current tailpipes are 1" below the body.  Are your more than that? 
'87 GN, 14K miles, TE-60, 60lb inj, TT 5.7, 2800 10" NL conv, RJC 3" DP, Pypes exh w/ Race Pro, Walbro 255 w/Hotwire.

Offline earlbrown

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Re: Which Exhaust ?
« Reply #13 on: September 26 2013, 11:24:26 PM »
Did the Pypes system exist 20 years ago?   I was thinking the GN kit was a fairly recent thing from them.
'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline Steve Wood

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Re: Which Exhaust ?
« Reply #14 on: September 26 2013, 11:55:09 PM »
last few years...
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