2g dp and 1g catback

[cyhm]

Hey guys, I've had a hell of a time finding any info out about the typical 2g downpipe and 1g catback setup for the GVR4. I was wondering if any modification needs to be done to the exhaust for this setup to work. I am aware that the downpipe may have clearance issues with the tcase or swaybar and that the typical 1g muffler angle can be a little too sharp for a GVR4 bumper, but can't find anything about further modification required. I don't care what it looks like as long as it functions properly and doesn't drag on the ground. Thanks in advance for any advice.

 

[frank1]

I think the 1g exhaust is short her than the galant

 

[cyhm]

Yes it is. That is the purpose for running the 2g downpipe, which deletes the cat section, making it several inches longer than a 1g downpipe. I have been led to believe that this is a typical setup by several sources, but noone seems to know what exactly is entailed in making it work lol.

 

[tektic]

I used a press bent 3" awd tel cat back I had lying around. All hangers were cut off and the pipe was lined up to where it cleared the rear drive and suspension. Then I weld on new hangers.

Its going to be hard to find two piece from different cars that line up perfectly.

 

[cyhm]

I'm surprised that being so widely spoken as being a typical setup, there isn't more info about it. Maybe I was just led to believe this by other people's speculations. I think I will attempt putting it all on and I'll run the dp open if I have to for a while if it doesn't fit well. Since there is relatively no solid info about this (just rumors I suppose), I will share my findings later on.

 

[ktmrider]

^^ Good God, reason for so few responses is that this is asked a couple times per year.

Search first then open your wallet for a CMPE system that actually fits the GVR4.

 

[dsmless]

Truthfully bro, just dont even bother with this and if you can just have someplace or a friend weld you a exhaust for your car, its much easier. Now if you already have the 2g downpipe and the 1g dsm exhaust you can cut and reclock/add a section of piping to the system to get it were you want, you can use exhaust clamps/couplers to secure the peices together until you can weld them. Either way you have to take it on/off a couple times to adjust and weld it.

 

[KiNgMaRtY]

I installed a Megan 3" 2g GSX downpipe on 611 back when I owned it and it did not align perfectly to the 2.5 cabtback that was there which was mated to the stock downpipe. I went to a muffler shop and just had the resonator removed from the catback and had it flanged with a longer piece of 3" piping to replace some of the 2.5 piping.

When I had the 1G GSX, former HKS promo car, I removed the small HKS DP and replaced it with a Punishment 3" 2G GSX DP. I did the same thing as they did not mate, when to the muffler shop and had a piece of 3" piping flanged and fitted to the HKS exhaust to mate to my downpipe.

I prefer getting the 2g DP's because you get more pipe for your money and it deletes the cat. All the hangers fit in the stock locations.

For 802 I just had RRE build me a full no restrictions Stealth Turbo back exhaust because I had a Evo 3 o2 and didn't want to go through the hassle of cutting a flange and then rewelding it and so on

 

[tektic]

why won't this thread die?