I just installed the 1 5/8" headers. Is the SLP y-pipe supposed to be this far out in the wheelwell? I cant see any other way for it to fit, since its amost hitting the frame rail.

 

1 more pic

 

Anymore pictures from underneath the car?

 

Is that a single or dual cat Y-pipe?

Ed

 

Don't know yet what it's supposed to look like, hope to install my SLPs soon. Is it causing a clearance problem, or does it just "not look right"?

 

25THRSS - nope, no pics from underneath unfortunately.

ebmiller88 - single cat y-pipe. The 2 pipes from the headers connect together under the car right before the cat.

LastViceRS - With the car in the air and the wheel hanging as far down as it goes, the tire will rub the pipe when the wheels are turned right. It clears when the car is on the ground, but its fairly close. Plus the wheels on there right now are the stock 15s. I haven't tried seeing how close my wider 17" Firehawks are.

As far as the headers themselves, they clear everything fine. Now the y-pipe gave me so much trouble. It appeared to me that it was made too big. The drivers side pipe didnt want to line up with the connection in the y-pipe, the pipes are hitting the crossmember and body. Also I bought the install kit with the modified A/C bracket which appearently SLP didn't modify enough because it wouldn't fit.

I replaced all the LG4 exhaust and put in a full 3" exhaust complete with the 3" cat. I just took it for a ride and can say I notice no difference in power what so ever.

 

I hope my gamble on SLP turns out better than this. It does sound to me that your Y-pipe needs to be smaller, but if you cut it, that voids the warranty. And from what I've read, SLP doesn't have the best track record as far as making things right when their parts don't fit.
I can see your concern with your 17s rubbing, but I'd try them and see if they do make contact. If they don't, I personally don't think I'd worry about it.
And as far as performance, you may need to richen your mixture because of the increase in flow. It's not uncommon to develop a lean condition.

 

Have SLP's installed, same deal on my car, actually had to cut a little piece off of the plastic in the wheel well. No rubbing though with 17x9 wheels with 245's. They were a tight fit, and had trouble getting the donut gaskets to fit right, but well worth it.

 

Mine looks the same and I have no rubbing on tire, however I had to cut a piece of the inner fender shield to make them fit. Even after cutting the shield it is still melted a little.

 

Ow...that hurt my neck....



Ed

 

LastViceRS - I hope your install goes better then mine. I thought for sure i'd have to dent the header to clear the steering shaft, but no problems. Then I thought it'd be smooth sailing, but then the y-pipe decided not to fit. I had to get the drivers side pipe cut down a tad just to clear the crossmember. It still touches now tho. Right now, figuring the cost of headers, install kit, overpriced cat adaptor, 3" cat, cat-back, misc little parts and a month of weekends, I feel like I flushed a grand down the toilet with little return. I miss my old 2.5" Superturbo cat back. *sniff sniff* I'll try my 17"s next weekend, if they rub that pipe, I'm not going to be happy (you can see in the pic a spot where they were rubbing on the liner).

definitive1 & 88GTAinRI - I forgot, I had to cut some of the plastic fender well liner out too. Well, maybe mine then aren't sticking out farther then they should.

 

[QUOTE]Originally posted by ebmiller88
[B]Ow...that hurt my neck....

LOL. Sorry just took that pic 5 mins ago and that floor was cold on my bare feet, so I snapped it quick.

I had a bad time with my install too. Actually had to take left side header out and have the flange machined because it wasn't machined flat and wouldn't seal against the head. The good part of having it machine was it sealed now and it have me that tiny bit of clearance from brake lines I needed.

Also on that "adapter". What a joke. I took it to muffler shop down the street and the guy copied it for me and I sent the SLP "adapter" back to summit. I told the guy at muffler shop about that scam and he made me the pipe for free.

The Y pipe, for me, was about the easiest part of the install. Of course SLP didn't send me any donut gasket either, so I got some fel-pros for a 72 Chevelle 454 (forget part number) and they worked fine.

 

88GTAinRI - Thanks for the pic

 

I am having grief with the SLP y-pipe also. I have SSM frame connectors installed and it is hitting the connector. I have to "shorten" the Y-pipe to pull it in towards the center of the car and clear the frame connector. This is a major drag, but should have come as no suprise to me as there are posts 'o plenty on that topic.

Oh yea, I forgot..... I needed another $500 system on my car that I have to customize to be able to actually use.

As far as performance increase goes, I won't have an accurate measurement since I replaced the motor and the exhaust at the same time.

I had a hard enough time getting the headers on with the motor out of the car. It must have been a bee-otch getting the headers in with the motor still in the car. No? Also, I had to jostle the brakelines (Drivers side) and steel coolant line (passengers side) to ensure clearance.

Last Vice- I can confirm SLP's policy of "jam it, Mr. Consumer" when their parts don't fit. I was ready to make a special trip out there just to whoop *** (that was a matter not related to the headers, though).

I guess that is life....

 

The edelbrock Y pipe looks almost the same.

Looks like it sticks out too far into the wheel well. It's smaller pipe too.

 

swerve-driver - Actually I was surprised how easy it was to put the headers themselves on the motor while in the car.

330hp_91RS - Never seen the edelbrock y-pipe. I guess they all stick out. Just didnt realize that much.

 

You think for the $$ we dish out for headers that we would have no fitment problems at all. I have not gotten headers yet and threads like this don't help me to want to order any. I would not be happy if I could see the Y-pipe like that. I just want to buy a set of headers and not have to worry about fitment and rubbing, etc. !!!

 

Mine looks the same, but I have had no problems with it rubbing or melting anything. (1-5/8" slp's w/ y pipe and single 3" cat)
-Rich-

 

Mine looks the same. I don't see anything wrong with it. If you've got issues with fitting then there is something wrong. Every person that's said it fit like crap has an aftermarket exhaust or something done to the car that interfears with stock locations. This is NOT the company's job to look out for other modifications.
Sorry if I sound like a grump but I get tired of reading posts about stuff not fitting perfect and requiring a little work to get right. Ask mustang guys if installing headers is easy, lol. You can have 2 of the following 3 options. Easy, Cheap, Fast . SLP is like cheap and fast. Edelbrock seems to be balanced but doesn't excel in any, hookers are easy and fast.....

 

I have the SLP Y-Pipe that connects to the Stock Exhaust Manifolds and the driver side y-pipe flange was about 3/4" to wide and wouldn't line up with the stock exhaust manifold flange (I verified this by measuring the distance between the two exhaust pipe inlets on the stock y-pipe). I had to take the SLP Y-Pipe to a muffler shop and have them make a Slip-Joint on the crossover pipe that runs in front of the oil pan to get the y-pipe flanges to line up correctly. Also, the two y-pipe tubes that exit the wheel well look the same as yours.

 

When I get around to it, I fully expect to have to take the Y pipe to a shop and have a few slip joints put in it for it to fit. For some reason this is not an uncommon thing to have to do with the SLPs.

Ed

 

Justin,

Just took a look and mine look like yours. I do not have clearance problems with my tire.

Maybe I'm the minority, but my 1-3/4" dual cat SLP headers fit right in with absolutely no modifications. It seems that most have problems....

Willie

 

Thanks everyone! Well if thats the way is supposed to be, then good. Just want to double check cause it looked odd to me.

Willie - I just got my Spohn SFCs, so I'll just have the shop you told me about weld the pipe up when they install the SFCs. Right now the y-pipe hits the crossmember in front of the oil pan (thought I got that to clear, but when I tighned it up, contact!) and underneath right after the wheel well. Hopefully they can get everything to clear nicely.


Are you guys welding up the slip joint where the driver's side pipe connects into the y-pipe or just clamping it?

 

Since someone brought up the Edelbrocks, I ran out and looked at mine. No where near rubbing the wheel, and no clearance issues with anything on the wheel well during install. Zero problems on the whole install actually, except for getting the darn rear bolt in the passenger side. That is a monster to get to, but I imagine it's hard on all header installs.

 

I welded all the exhaust joints as you can see from the picture.

 

I am with jprevost on this. You guys are expecting to much. If it fits then you got lucky! When I buy after market parts that are not internal engine parts, I expect them not to fit without having to mod them. It would cost too much for companies to have a really high quaility control.