W-Body Custom Exhaust Build

[HighOctaneRacing]

3 in isn't bad if you have a lot of mods like headers, smaller pulley, cam and stuff like that

 

[TateBongard]

That's my plan for this summer. Went and looked up the video too. Says 3" dp, 3" to the y, 2.5" y back, 16" glasspack with no muffs or res. I've gotta imagine it drones quite a bit. Could I get away with running 3" to the y since my glasspack is 3" in 3" out and then going down to 2.5" for the y?

 

[Uno99]

Use a kit from these guys. Its the easiest way to build your own kit. whatever reso, no reso, whatever mufflers, no mufflers. And whatever tips you want. Ive installed and used several of these to build exhaust systems for my Charger and GTP as well as my buddies Silverado, CTV-V and Subi.

http://www.mandrelexhaustsystems.com/categories/car-exhaust/pontiac/97-03-pontiac-grand-prix.html

 

[HighOctaneRacing]

That's my plan for this summer. Went and looked up the video too. Says 3" dp, 3" to the y, 2.5" y back, 16" glasspack with no muffs or res. I've gotta imagine it drones quite a bit. Could I get away with running 3" to the y since my glasspack is 3" in 3" out and then going down to 2.5" for the y?

yes you can do that but you'll need reducers 3" to 2.5". most auto parts stores have them.

Use a kit from these guys. Its the easiest way to build your own kit. whatever reso, no reso, whatever mufflers, no mufflers. And whatever tips you want. Ive installed and used several of these to build exhaust systems for my Charger and GTP as well as my buddies Silverado, CTV-V and Subi.

http://www.mandrelexhaustsystems.com/categories/car-exhaust/pontiac/97-03-pontiac-grand-prix.html

lol the link you posted has been posted in the very first thread.

 

[Uno99]

lol your right and it was me. Kids got me up way to early this morning

 

[ItHurtz]

mandrels 3" kit (not the reso muff or tips)
20150506_172925 by Corey S, on Flickr

 

[Slick2500]

Mandrel Bends has an SUV section but nothing listed

 

[matt270avian]

Anybody know of a good alternative/place to buy Redback mufflers? They're an Australian company that makes kits for Holdens with 3800s (yes, our same exact engine) in them. By far the best sound I've ever heard a 3800 make. Problem is they're expensive AF to get shipped back here to the states.

http://redbackperformance.com.au/products/catalogue/gmk2558-holden-commodore-vt-vy-sedan-exhaust

There's a handful of other videos on YouTube with people running similar setups.

 

[TateBongard]

Matt270avian I just did some serious searching and pretty much came up with nothing lol. That is an excellent sounding l67 tho I will say that! Just put full 2.5 dynomax on mine and it sounds basically the same as It did before, slightly throatier. If I could get my hands on sine of this redback stuff that'd be cool. Anyway, good luck.

 

[Scottydoggs]

its also not a transverse engine. its rwd. so its gonna sound better right there.

 

[Slick2500]

Yup, even a 3800 Camaro can be made to sound a bazillion times better than a gp.

 

[matt270avian]

I've still never really heard a 3800 Camaro I liked the sound of... Link?

 

[ItHurtz]

my brothers v6 3.8 camaro sounds gay as hell with no muff

 

[HighOctaneRacing]

IDK about this company..

 

[ItHurtz]

Thats how you tune the "resonation" out correctly, not a dumb 3' round muffler.

 

[Turbocharged400sbc]

the problem is that it adds other sounds as side effects....i think it was Matt M that saide it was a hooting type sound

 

[HighOctaneRacing]

mandrels 3" kit (not the reso muff or tips)
20150506_172925 by Corey S, on Flickr

Hey Corey did you get that resonator from Mandrel? Is it a Magnaflow one?

 

[ItHurtz]

Bought separately from either summit or ebay, 3' magnaflow

 

[HighOctaneRacing]

Will most likely have a Dynomax Catback for sale soon along with the GMPP Catback as well.

 

[ebk231]

Stainless works makes really nice round mufflers that you can get made to custom lengths . A bit expensive but, I love mine