Ok ive posted on here before but i didnt have much luck. What i have is a 2007 3.5l v6 monte ls. Wat i want to do to it is add HORSEPOWER WITHOUT VOIDING WARRANTY. Thing is though i cant find a whole lot of stuff for this car.

So far what im thinking of doing is:
Magna Flow catback exhaust system but it runs 888.59 installed. I know of a place that I can get an exhaust system with "anything I want for 450$. How should i get it done???

I want a cold air intake system for it really bad also but i cannot find one for my engine. any suggestions???

I also cant find anyone who makes a chip or programmer and a throttle body spacer. once again any suggestions???

If any of you guys know of any thing else I can add to this car to increase horsepower please let me know.

 

also any small thing you guys know of would be awesome. like belt replacement. anything idk??

 

Take your car to a muffler shop and have them fab you up a full exhaust. You can get an underdrive pulley. Also, if you want a CAI, you could have a friend weld you up one of those too, might not be tried/true, but put it some place its goner pull in cool air.

 

I'd just get the mufflers replaced with aftermarket ones if you want more sound. The stock piping is stainless steel, and its designed for your specific engine. Increasing piping size on a near stock engine isn't gonna change much. I doubt if you'd even make a dyno able difference switching entire catbacks.

Buy a K&N conefilter and some flexi tube from the hardware store and run the flexi tube from your TB to the fender and mount your cone filter on the end of that. Its called a FWI, and you can easily do the whole thing well under $100

waste of money- don't waste your time.

Just doing a basic intake/exhaust will be about it for real cheap mods, but neither will give you much power. If you can find someone to actually tune your pcm that will give you a good bit of hp- but most of the real NA power comes from heads/cam, or at least bigger bolt ons like rockers, headers, etc.

 

How about an LSX-Tune?

http://www.lsxtune.com/services.htm

GM V6 Cars
97-02 Firebird/Camaro 3.8
00-05 Chevrolet Impala 3.4, 3.8
06-07 Chevrolet Impala 3.5, 3.9
97-01 Chevrolet Lumina 3.1, 3.4, 3.8
97-03 Chevrolet Malibu 3.1, 3.4
06-07 Chevrolet Malibu 3.5, 3.9 (3.5 in 07 only)
97-05 Chevrolet Monte Carlo 3.1, 3.4, 3.8
06-07 Chevrolet Monte Carlo 3.5, 3.9
97-05 Pontiac Bonneville 3.8
97-05 Pontiac Grand Am 3.1, 3.4
06-07 Pontiac G6 3.5, 3.6, 3.9 (3.5 in 07 only)
97-05 Pontiac Grand Prix 3.1, 3.8
98-05 Buick Century 3.1
97-05 Buick Lesabre 3.8
97-05 Buick Park Avenue 3.8
97-04 Buick Regal 3.8
97-99 Buick Riviera 3.8
99-04 Oldsmobile Alero 3.4
07 Saturn Aura 3.5, 3.6

 

CAI and Exaust would add up to about maybe 10-15 hp gain.
The easiest and cheapest way prolly is a dry shot ofnos.
spray before the MAF and you dont even need a tune.just make sure youknow how to take the darn thing out so in case you brake something you can make it look like it was never there. I wouldn't go over a50 shot. That will give you50 more hp at the crankand dont spray too much save your tranny.

There aren't many mods out for the 5.3 Monte so there are even less for the 3.5.